{"gene":"ELMO1","run_date":"2026-06-09T23:54:43","timeline":{"discoveries":[{"year":2003,"finding":"ELMO1 forms a complex with DOCK180 to function as a bipartite guanine nucleotide exchange factor (GEF) for Rac1, promoting cell migration; the N-terminal 330 amino acids of ELMO1 are required for localization to lamellipodia and migration but not for Rac activation per se, indicating that spatial control of Rac activation is critical.","method":"Transwell migration assay with ELMO1/DOCK180 deletion mutants; C. elegans transgenic rescue of CED-5 mutant","journal":"The Journal of biological chemistry","confidence":"High","confidence_rationale":"Tier 2 / Strong — epistasis in C. elegans and in vitro mutant analysis in multiple cell systems, replicated across organisms","pmids":["14638695"],"is_preprint":false},{"year":2003,"finding":"DOCK2 associates with ELMO1 through its SH3 domain; this association is required for DOCK2-mediated Rac activation and actin polymerization in T cells — a DOCK2 mutant lacking the ELMO1-binding region fails to activate Rac.","method":"Co-immunoprecipitation; expression of DOCK2 mutant lacking ELMO1-binding region in T-hybridoma cells; Rac activation assay","journal":"Blood","confidence":"High","confidence_rationale":"Tier 2 / Strong — reciprocal binding and functional rescue experiments, replicated by multiple later studies","pmids":["12829596"],"is_preprint":false},{"year":2002,"finding":"ELMO1 directly binds the SH3 domain of the Src-family kinase Hck via a polyproline motif, and is heavily tyrosine-phosphorylated in cells co-expressing Hck, identifying ELMO1 as a substrate of Hck.","method":"GST pulldown with purified proteins; co-immunoprecipitation in intact cells; mass spectrometry identification; phosphorylation detected by immunoblot","journal":"The Journal of biological chemistry","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — direct binding confirmed with purified proteins and in-cell co-IP, single lab","pmids":["12029088"],"is_preprint":false},{"year":2005,"finding":"Hck phosphorylates ELMO1 at Tyr18, Tyr216, Tyr395, Tyr511, and Tyr720; mutants lacking these sites are defective in promoting phagocytosis and migration, with Tyr511 being particularly important; these mutants retain Dock180 and Crk binding but show reduced Rac activation.","method":"Mass spectrometry identification of phosphorylation sites; site-directed mutagenesis; phagocytosis and migration assays; Rac activation assay","journal":"Biochemistry","confidence":"High","confidence_rationale":"Tier 1 / Moderate — in vitro kinase assay with MS identification, mutagenesis with functional phenotypic readouts, single lab","pmids":["15952790"],"is_preprint":false},{"year":2005,"finding":"ELMO1 directly interacts with ERM proteins (e.g., radixin) via its N-terminal 280 amino acids, a region overlapping with the RhoG-binding site but distinct from the C-terminal Dock180-binding region; ELMO1 can simultaneously bind radixin and Dock180; radixin binding occurs independently of radixin C-terminal phosphorylation status.","method":"In vitro pulldown with purified recombinant proteins; co-immunoprecipitation at endogenous levels; domain-mapping with deletion mutants; co-localization at plasma membrane","journal":"The Journal of biological chemistry","confidence":"High","confidence_rationale":"Tier 1 / Moderate — reconstituted direct interaction with purified proteins and endogenous co-IP, domain mapping, single lab","pmids":["16377631"],"is_preprint":false},{"year":2006,"finding":"ELMO1 inhibits ubiquitylation of Dock180, preventing its proteasomal degradation; Dock180 is ubiquitylated on the plasma membrane, enhanced by EGF, Crk, and adhesion signals, and ELMO1 binding (via its N-terminal region encompassing aa 531+) blocks this ubiquitylation.","method":"In vivo ubiquitylation assay; proteasome inhibitor treatment; co-expression experiments; immunofluorescence showing membrane translocation of ubiquitinated Dock180","journal":"Journal of cell science","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — functional ubiquitylation assay with ELMO1 mutants, two orthogonal methods (ubiquitylation assay + proteasome inhibitor rescue), single lab","pmids":["16495483"],"is_preprint":false},{"year":2008,"finding":"The C-terminal ~200 aa of ELMO1, comprising its PH domain, mediate direct interaction with the N-terminal ~200 aa of DOCK180; the ELMO1 PH domain cannot bind phospholipids but structurally resembles FERM domains; an N-terminal amphipathic alpha-helix in this PH domain is critical for DOCK180 binding (point mutants of invariant hydrophobic residues disrupt complex formation); a secondary interaction involves the DOCK180 SH3 domain and ELMO1 C-terminal proline-rich motifs; disrupting both interfaces is required to abrogate the complex.","method":"Crystal structure of ELMO1 PH domain; biochemical binding assays; point mutagenesis of hydrophobic helix residues; Rac signaling assays in cells","journal":"Molecular biology of the cell","confidence":"High","confidence_rationale":"Tier 1 / Strong — crystal structure plus mutagenesis plus functional Rac signaling assay, multiple orthogonal methods","pmids":["18768751"],"is_preprint":false},{"year":2004,"finding":"HIV-1 Nef binds the DOCK2-ELMO1 complex (purified to near homogeneity from T cells), activates Rac in T cells, and inhibits lymphocyte chemotaxis through this interaction.","method":"Proteomic purification of Nef-associated complex; mass spectrometry identification; Rac activation assay; chemotaxis assay","journal":"PLoS biology","confidence":"High","confidence_rationale":"Tier 2 / Strong — near-homogeneous purification and MS identification, functional chemotaxis and Rac activation assays, replicated functionally","pmids":["14737186"],"is_preprint":false},{"year":2010,"finding":"ELMO1-deficient mice display defective phagocytic clearance of apoptotic germ cells by Sertoli cells, resulting in testicular pathology; the pathway involves BAI1 (upstream receptor) → ELMO1 → DOCK1 → RAC1 (downstream), as shown by genetic epistasis in vivo.","method":"ELMO1 knockout mouse; histopathology; in vitro and in vivo engulfment assays; genetic epistasis with BAI1 and RAC1 loss-of-function","journal":"Nature","confidence":"High","confidence_rationale":"Tier 2 / Strong — KO mouse with specific pathological phenotype, genetic epistasis ordering pathway, in vitro and in vivo validation","pmids":["20844538"],"is_preprint":false},{"year":2010,"finding":"ELMO1/DOCK180 acts downstream of Netrin-1/Unc5B receptor signaling to activate Rac1 in endothelial cells, regulating vascular morphogenesis in zebrafish.","method":"Morpholino knockdown of elmo1 in zebrafish; in situ hybridization; functional interaction assays with Netrin-1/Unc5B signaling components","journal":"Circulation research","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — morpholino KD with vascular phenotype, identification of upstream activators, single lab","pmids":["20466982"],"is_preprint":false},{"year":2011,"finding":"RhoG functions upstream of ELMO1/Dock180 to regulate Rac GTPase and spine morphogenesis in hippocampal neurons; depletion of Dock180 or ELMO1 inhibits spine formation, and overexpression promotes it, establishing the RhoG/ELMO1/Dock180 module in this process.","method":"RNAi screen of 70 Rho GEFs in hippocampal neurons; overexpression and knockdown of individual components; Rac activation assays","journal":"The Journal of biological chemistry","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — RNAi and OE with morphological readout, pathway ordering via epistasis, single lab","pmids":["21900250"],"is_preprint":false},{"year":2012,"finding":"Crystal structure of DOCK2-ELMO1 complex at 2.1-Å resolution reveals: the ELMO1 C-terminal Pro-rich tail winds around the DOCK2 SH3 domain; an intermolecular five-helix bundle forms at the interface; DOCK2 DHR2 GEF domain autoinhibits DOCK2 by associating with its ELMO-interacting region, and ELMO1 binding weakens this autoinhibitory interaction; conversely, the N- and C-terminal regions of ELMO1 mediate its own autoinhibition, and DOCK2 binding buries the ELMO1 autoinhibitory residues — thus DOCK2 and ELMO1 mutually relieve autoinhibition.","method":"Crystal structure at 2.1 Å; mutagenesis; biochemical binding assays","journal":"Proceedings of the National Academy of Sciences of the United States of America","confidence":"High","confidence_rationale":"Tier 1 / Strong — high-resolution crystal structure plus mutagenesis confirming functional significance, single rigorous study","pmids":["22331897"],"is_preprint":false},{"year":2012,"finding":"ELMO1 binds the Mediator complex subunit Med31; during Salmonella infection in macrophages, ELMO1 increases cytoplasmic localization of Med31 and enhances monoubiquitination of Med31, specifically affecting IL-10 and IL-33 gene expression.","method":"Co-immunoprecipitation; subcellular fractionation; ubiquitination assay; gene expression analysis in macrophages","journal":"Current biology : CB","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — co-IP plus functional gene expression readout, two orthogonal methods, single lab","pmids":["23273896"],"is_preprint":false},{"year":2013,"finding":"CXCL12 stimulation promotes interaction between Gαi2 and ELMO1; Gi signaling triggers Gαi2-dependent membrane translocation of ELMO1, which then associates with Dock180 to activate Rac1 and Rac2, linking GPCR/Gi signaling to actin polymerization and breast cancer cell migration.","method":"Co-immunoprecipitation; membrane fractionation; knockdown of ELMO1 and Gαi2; Rac activation assay; in vivo metastasis assay","journal":"Nature communications","confidence":"High","confidence_rationale":"Tier 2 / Strong — reciprocal co-IP, membrane translocation assay, Rac activation, in vivo metastasis knockdown, multiple orthogonal methods","pmids":["23591873"],"is_preprint":false},{"year":2014,"finding":"Endogenous ELMO1 (but not ELMO2) constitutively interacts with Dock2 in primary mouse and human T cells; Elmo1 deficiency reduces Dock2 protein levels (by ~4-fold) through increased Dock2 polyubiquitination and proteasomal degradation; Elmo1 expression in heterologous cells inhibits Dock2 ubiquitination; loss of ELMO1 impairs CCR7- and CXCR4-dependent Rac activation and T cell chemotaxis.","method":"Co-immunoprecipitation from primary T cells; Elmo1 KO mouse; proteasome inhibitor rescue; ubiquitination assay; Rac activation assay; chemotaxis assay; transfection rescue with Elmo1 mutants","journal":"Journal of immunology","confidence":"High","confidence_rationale":"Tier 2 / Strong — KO mouse, multiple orthogonal methods (co-IP, ubiquitination assay, proteasome inhibitor, chemotaxis), mutant rescue","pmids":["24821968"],"is_preprint":false},{"year":2014,"finding":"Arhgef16 interacts with ELMO1 in mammalian cells (identified by yeast two-hybrid and confirmed by co-IP); Arhgef16-mediated engulfment of apoptotic cells is synergistically increased by ELMO1 but abrogated in its absence; this pathway is RhoG-dependent and Dock1-independent.","method":"Yeast two-hybrid screen; co-immunoprecipitation; apoptotic cell engulfment assay; RhoG and Dock1 epistasis experiments","journal":"Biochimica et biophysica acta","confidence":"Medium","confidence_rationale":"Tier 3 / Moderate — yeast two-hybrid and co-IP plus functional engulfment assay with epistasis, single lab","pmids":["25063526"],"is_preprint":false},{"year":2015,"finding":"ELMO1/Dock180 protects endothelial cells from apoptosis via activation of the Rac1/PAK/AKT signaling cascade; overexpression reduces caspase-3/7 activity and annexin V staining; this anti-apoptotic effect is Rac1-dependent.","method":"Overexpression and knockdown in human endothelial cells; caspase-3/7 activity assay; annexin V staining; PAK and AKT phosphorylation assays; zebrafish embryo apoptosis and vessel formation assays","journal":"The Journal of biological chemistry","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — multiple in vitro apoptosis readouts plus in vivo zebrafish validation, single lab","pmids":["25586182"],"is_preprint":false},{"year":2015,"finding":"ELMO1 is required for Salmonella internalization by macrophages via a BAI1-ELMO1-Rac1 pathway; ELMO1 depletion reduces Rac1 activation (~6-fold), impairs bacterial internalization, reduces TNF-α and MCP-1 release, and attenuates NF-κB, ERK1/2, and p38 MAP kinase activation; in vivo, ELMO1-deficient mice show 90% reduction in bacterial burden.","method":"siRNA knockdown in macrophage cell lines and intestinal macrophages; ELMO1 KO mice; Rac1 pulldown assay; cytokine array; signaling pathway (NF-κB, ERK, p38) assays","journal":"Cellular and molecular gastroenterology and hepatology","confidence":"High","confidence_rationale":"Tier 2 / Strong — KO mouse with in vivo phenotype, multiple orthogonal in vitro assays, Rac1 activation measured directly","pmids":["26878033"],"is_preprint":false},{"year":2015,"finding":"Src phosphorylates ELMO1 at Tyr724 (and Tyr720); Y724F mutation abolishes Src-induced Rac1 activation, impairs cell spreading on fibronectin, and inhibits actin stress fiber/focal adhesion assembly and cell migration.","method":"In vivo and in vitro phosphorylation assays; site-directed mutagenesis (Y724F); stable cell lines; Rac1 activity assay; cell spreading/migration assays","journal":"Cell communication and signaling : CCS","confidence":"High","confidence_rationale":"Tier 1 / Moderate — in vitro kinase assay plus mutagenesis with functional cellular readouts, single lab","pmids":["26205662"],"is_preprint":false},{"year":2016,"finding":"ELMO1 directly interacts with Gβγ subunit upon chemokine GPCR activation; the interaction is through the N-terminus of ELMO1; Gβγ-ELMO1 interaction is required for ELMO1 membrane translocation and subsequent Rac1 activation during chemotaxis.","method":"Co-immunoprecipitation showing ELMO1-Gβγ interaction; ELMO1 deletion mutants mapping N-terminal binding; membrane fractionation; Rac1 activation assay; chemotaxis assay","journal":"Journal of Cancer","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — co-IP plus domain mapping plus Rac1 activation readout, single lab","pmids":["27313788"],"is_preprint":false},{"year":2017,"finding":"ELMO1 regulates LC3-associated phagocytosis (but not classical ULK1-dependent autophagy) during Salmonella infection; ELMO1 is present in intracellular vesicles/phagosomes and enhances LC3B accumulation via ATG5-dependent pathway; ELMO1 depletion increases phagosomal pH and decreases cathepsin B activity, impairing bacterial clearance.","method":"siRNA knockdown; immunofluorescence of ELMO1 in vesicles; LC3B accumulation assay; phagosomal pH measurement; cathepsin B activity assay; ATG5 and ULK1 epistasis","journal":"The Journal of infectious diseases","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — subcellular localization with functional consequence, multiple orthogonal assays, single lab","pmids":["29029244"],"is_preprint":false},{"year":2017,"finding":"TGFβ signaling represses ELMO1 expression; loss of TGFβ receptor II (Tgfbr2) de-represses ELMO1 specifically in cancer stem cells, promoting invasion and metastasis; restoration of Tgfbr2 completely blocks ELMO1 expression in vivo.","method":"Mouse model of Tgfbr2 KO squamous cell carcinoma; Elmo1 knockdown impairing lung metastasis; genetic rescue with Tgfbr2 restoration","journal":"eLife","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — in vivo genetic model with pathway epistasis and metastasis readout, single lab","pmids":["28219480"],"is_preprint":false},{"year":2018,"finding":"FE65 neuronal adaptor interacts with ELMO1 N-terminal region, activates ELMO1 by disrupting its intramolecular autoinhibitory interaction (between ELMO1 N-terminal EID and C-terminal EAD), promotes ELMO1 plasma membrane targeting, and thereby enhances DOCK180-mediated Rac1 activation and neurite outgrowth; FE65, ELMO1, and DOCK180 form a tripartite complex.","method":"Co-immunoprecipitation; ELMO1 autoinhibition disruption assay; plasma membrane fractionation; Rac1 activation assay; neurite outgrowth measurement; FE65 double mutant that disrupts ELMO1 binding as control","journal":"The Journal of biological chemistry","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — multiple orthogonal methods (co-IP, membrane fractionation, Rac1 assay, neurite measurement), single lab","pmids":["29615491"],"is_preprint":false},{"year":2019,"finding":"ELMO1 associates with receptors linked to neutrophil function and regulates neutrophil activation and early recruitment to joints; Elmo1-deficient mice show reduced joint inflammation in arthritis models; human donors with ELMO1 SNP show increased neutrophil migratory capacity; ELMO1 knockdown reduces human neutrophil migration to arthritis-associated chemokines.","method":"Elmo1 KO mouse in acute and chronic arthritis models; genetic and cell-biology studies linking ELMO1 to neutrophil receptors; human neutrophil migration assays with ELMO1 knockdown","journal":"Nature immunology","confidence":"High","confidence_rationale":"Tier 2 / Strong — KO mouse in multiple disease models, cell-biology experiments in human neutrophils, genetic and functional evidence converging","pmids":["30643265"],"is_preprint":false},{"year":2019,"finding":"ELMO1 interacts with active RhoG in platelets; ELMO1 deficiency enhances platelet aggregation, granule secretion, integrin αIIbβ3 activation, thromboxane generation, and spreading specifically downstream of GPVI agonists but not PAR4; RhoG activity is enhanced in ELMO1-deficient platelets, indicating ELMO1 negatively regulates GPVI-mediated thrombus formation via RhoG.","method":"ELMO1 KO mouse; platelet aggregation, secretion, integrin activation assays; RhoG pulldown assay; ferric-chloride injury model; pulmonary embolism model","journal":"Blood advances","confidence":"High","confidence_rationale":"Tier 2 / Strong — KO mouse with multiple orthogonal platelet function assays, in vivo thrombosis models, mechanism linked to RhoG","pmids":["30787021"],"is_preprint":false},{"year":2019,"finding":"Nck-1 SH2 domain interacts with phosphotyrosine residues (Tyr18, Tyr216, Tyr395, Tyr511) on ELMO1; this interaction augments ELMO1-RhoG binding, promotes Rac1 activation, and increases cell motility; an SH2-inactive Nck-1 mutant (R308K) or a 4YF ELMO1 mutant lacking these phosphotyrosines abolishes the interaction.","method":"GST pulldown; co-immunoprecipitation; site-directed mutagenesis; tyrosine phosphatase inhibitor and Hck co-expression; Rac1 activation assay; cell motility assay","journal":"The Journal of biological chemistry","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — direct binding confirmed by pulldown and co-IP, mutagenesis with functional readouts, single lab","pmids":["24928514"],"is_preprint":false},{"year":2020,"finding":"Cryo-EM structures of DOCK2-ELMO1 alone and as ternary complex with RAC1, plus crystal structure of RhoG-ELMO2-RBD: the binary complex adopts a closed autoinhibited conformation; relief of autoinhibition to an open state exposes RAC1-binding sites on DOCK2 DHR2 and RHOG/BAI GPCR-binding sites on ELMO1; upstream effectors including phosphorylation of DOCK2 and ELMO1 destabilize the autoinhibited state.","method":"Cryo-EM structure of DOCK2-ELMO1 alone and with RAC1; crystal structure of RHOG-ELMO2-RBD; mutagenesis validating interface residues","journal":"Nature communications","confidence":"High","confidence_rationale":"Tier 1 / Strong — cryo-EM and crystal structures with mutagenesis validation, multiple structural states determined","pmids":["32651375"],"is_preprint":false},{"year":2021,"finding":"Cryo-EM structure of active ELMO1-DOCK5 complex bound to RAC1 at 3.8 Å: the C-terminal PH domain of ELMO1 aids binding of DOCK5 DHR2 to nucleotide-free RAC1; an alpha-helical scaffold between ELMO1 and DOCK5 stabilizes RAC1 binding; mutagenesis confirmed that the PH domain of ELMO1 enhances GEF activity of DOCK5 through direct interactions with RAC1.","method":"Cryo-EM structure at 3.8 Å; site-directed mutagenesis; GEF activity assay","journal":"Science advances","confidence":"High","confidence_rationale":"Tier 1 / Strong — cryo-EM structure plus mutagenesis plus in vitro GEF activity assay","pmids":["34290093"],"is_preprint":false},{"year":2021,"finding":"TNF-α increases ELMO1 expression in ankylosing spondylitis MSCs via METTL14-dependent m6A modification of ELMO1 3'UTR; elevated ELMO1 drives enhanced directional migration of MSCs; inhibiting ELMO1 in SKG mice has therapeutic effects in spondyloarthritis.","method":"m6A modification analysis; METTL14 knockdown/overexpression; ELMO1 expression assays; in vitro and in vivo migration assays; SKG mouse model with ELMO1 inhibition","journal":"Nature communications","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — m6A writer identified, in vivo therapeutic model, multiple methods, single lab","pmids":["34508078"],"is_preprint":false},{"year":2021,"finding":"ELMO1 is a signaling hub in osteoclasts required for bone resorption; ELMO1 deletion reduces bone loss in four in vivo models (osteoprotegerin deficiency, ovariectomy, two inflammatory arthritis types); ELMO1 interactome in osteoclasts (defined by proteomics) includes cathepsin G and myeloperoxidase; ELMO1 contributes to osteoclast sealing zone formation; a structure-based ELMO1 inhibitory peptide reduces bone resorption in wild-type osteoclasts.","method":"Elmo1 KO mouse in four bone-loss models; CRISPR/Cas9 deletion; transcriptomics; proteomics of ELMO1 interactome; osteoclast sealing zone imaging; inhibitory peptide assay","journal":"Nature communications","confidence":"High","confidence_rationale":"Tier 2 / Strong — KO mouse in multiple models, proteomic interactome, inhibitory peptide validation, multiple orthogonal methods","pmids":["34404802"],"is_preprint":false},{"year":2010,"finding":"ELMO1 interacts with COX-2 in human mesangial cells; this protein-protein interaction increases COX-2 cyclooxygenase activity and enhances fibronectin expression; a dominant-negative ELMO1 (ET625, lacking Rac1 activity) also increases COX-2 activity, and Rac1 itself has no effect on COX-2-mediated fibronectin, indicating a Rac1-independent mechanism.","method":"Co-immunoprecipitation; COX-2 cyclooxygenase activity assay; fibronectin promoter reporter assay; dominant-negative ELMO1 and constitutively active Rac1 constructs","journal":"Cellular signalling","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — co-IP plus enzymatic activity assay plus functional reporter, single lab","pmids":["20732417"],"is_preprint":false},{"year":2012,"finding":"Zebrafish elmo1 is required for macrophage-dependent engulfment of apoptotic cells; in elmo1-deficient macrophages, directed engulfment is rare and may shift to macropinocytosis; elmo1 is not required for apoptotic cell migration to the periphery.","method":"Live imaging of apoptotic cells in zebrafish brain; elmo1 morpholino knockdown; time-lapse microscopy of macrophage engulfment","journal":"Current biology : CB","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — live imaging in intact organism with morpholino KD, direct functional readout, single lab","pmids":["22503503"],"is_preprint":false},{"year":2017,"finding":"Elmo1 interacts with Ephexin4 SH3 domain and N20 region; Elmo1 competes with the Ephexin4 SH3 domain for binding to the N20 region, relieving intermolecular steric inhibition of Ephexin4 and promoting RhoG binding to Ephexin4, thereby activating RhoG for apoptotic cell engulfment.","method":"Co-immunoprecipitation; domain mapping; RhoG activation assay; apoptotic cell engulfment assay; deletion and competition binding experiments","journal":"Scientific reports","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — co-IP domain mapping with competition experiments and functional engulfment readout, single lab","pmids":["28667327"],"is_preprint":false},{"year":2019,"finding":"elmo1 mutant zebrafish show reduced neuronal numbers in the posterior lateral line ganglion and defective Schwann cell myelination; these defects are rescued by Rac1 activation; forced early expression of Elmo1 and Rac1 specifically in Schwann cells rescues myelination defects, indicating a cell-autonomous role for Elmo1/Rac1 in radial sorting and myelination.","method":"Zebrafish elmo1 mutant; genetic rescue with constitutively active Rac1; Schwann cell-specific rescue; macrophage inhibition experiments","journal":"Cellular and molecular life sciences : CMLS","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — genetic rescue experiments in zebrafish with cell-type-specific expression, multiple controls, single lab","pmids":["31161284"],"is_preprint":false},{"year":2020,"finding":"FE65 serves as a functional link between ARF6 and ELMO1 by forming a multimeric complex; FE65 promotes ELMO1 trafficking to the plasma membrane via the endosomal recycling pathway; disruption of FE65-ELMO1 interaction reduces ELMO1 plasma membrane abundance and attenuates ARF6-ELMO1-mediated Rac1 activation and neurite elongation.","method":"Co-immunoprecipitation; plasma membrane fractionation; recycling endosome localization assay; FE65 KO; Rac1 activation assay; neurite length measurement","journal":"FASEB journal","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — co-IP plus subcellular trafficking assays plus Rac1 functional readout, single lab","pmids":["33047393"],"is_preprint":false},{"year":2023,"finding":"ELMO1 interacts with NOD2; overexpression of ELMO1 with mutant NOD2 (L1007fs, associated with Crohn's disease) fails to clear adherent invasive E. coli; ELMO1-KO and NOD2-KO enteroid-derived monolayers show higher bacterial loads; combined ELMO1/NOD2 depletion in macrophages impairs bacterial clearance linked to reduced pro-inflammatory cytokines and reactive oxygen species.","method":"Co-immunoprecipitation (ELMO1-NOD2 interaction); ELMO1 KO and NOD2 KO mice; enteroid-derived monolayers; bacterial load measurement; cytokine and ROS assays","journal":"Virulence","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — co-IP plus KO models with functional bacterial clearance readout, single lab","pmids":["36694274"],"is_preprint":false},{"year":2024,"finding":"Cryo-EM structures of DOCK5/ELMO1 alone and in complex with RhoG and Rac1: DOCK5/ELMO1 adopts a closed autoinhibited conformation; RhoG binds both ELMO1 and DOCK5 and drives a closed-to-open conformational transition; the open state exposes Rac1 binding sites; RhoG enhances DOCK5/ELMO1 GEF activity and binding affinity for Rac1 (confirmed by SPR); the DOCK5 PIP3-binding site aligns with the RhoG C-terminal lipidation site, suggesting simultaneous membrane binding.","method":"Cryo-EM structures of three states; surface plasmon resonance (SPR); in vitro GEF activity assay","journal":"The Journal of biological chemistry","confidence":"High","confidence_rationale":"Tier 1 / Strong — multiple cryo-EM structures plus SPR plus in vitro GEF activity assay, orthogonal methods","pmids":["38857861"],"is_preprint":false},{"year":2024,"finding":"P300 acetyltransferase acetylates ELMO1 at Lys505 (K505); SIRT2 deacetylates this site; K505 acetylation mediates ELMO1-Dock180 interaction and controls Rac1 activation; K505 acetylation does not affect ELMO1 localization or stability but is important for CRC progression.","method":"Immunoprecipitation and mass spectrometry to identify K505 acetylation; P300 and SIRT2 identified as writer/eraser; co-immunoprecipitation to assess ELMO1-Dock180 interaction; Rac1 activation assay; CRC cell functional assays","journal":"Experimental cell research","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — MS identification of acetylation site plus writer/eraser identification plus functional Rac1 readout, single lab","pmids":["38750717"],"is_preprint":false},{"year":2024,"finding":"ELMO1 depletion decreases SIRT1 deacetylase activity, enhances NF-κB (p65) acetylation, and accelerates intestinal epithelial cell senescence; deletion of ELMO1 leads to senescent IEC accumulation and premature fibrosis in murine colitis; irisin prevents ELMO1 degradation and reduces p65 acetylation and senescence, acting through the ELMO1-SIRT1-p65 pathway.","method":"ELMO1 KO mice with colitis model; SIRT1 deacetylase activity assay; p65 acetylation measurement; senescence assays (β-galactosidase, Lamin B1); irisin treatment rescue experiments","journal":"Gastroenterology report","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — KO mouse plus multiple senescence and signaling assays plus pharmacological rescue, single lab","pmids":["38756351"],"is_preprint":false},{"year":2025,"finding":"Cryo-EM reveals a new symmetrically flattened conformation of DOCK5/ELMO1/RhoG/Rac1 on a lipid membrane-coated grid; conformational changes are driven by interactions with acidic lipids through rotation at the DOCK5-ELMO1 hinge; acidic lipid-driven conformational changes regulate DOCK5/ELMO1 GEF activity on the plasma membrane and are essential for downstream signaling.","method":"Cryo-EM on lipid membrane-coated grid; biochemical GEF activity assays with acidic lipids; cellular signaling assays","journal":"Communications biology","confidence":"High","confidence_rationale":"Tier 1 / Strong — cryo-EM structure on lipid membrane plus biochemical GEF assays plus cellular validation, novel structural state","pmids":["41233496"],"is_preprint":false},{"year":2025,"finding":"ELMO1 depletion in macrophages shifts Salmonella-induced mitochondrial metabolism from oxidative phosphorylation to glycolysis and decreases ATP rate index; ELMO1 depletion upregulates mitochondrial fission protein DRP1; pharmacological DRP1 inhibition links the ELMO1-DRP1 pathway to TNF-α regulation following infection; ELMO1 interacts with Salmonella effector SifA to modulate mitochondrial function.","method":"Multinotch MS3-TMT multiplexed proteomics; Seahorse metabolic analysis; ELMO1 KO macrophages and mice; DRP1 pharmacological inhibition; TNF-α cytokine measurement","journal":"Gut microbes","confidence":"Medium","confidence_rationale":"Tier 2 / Moderate — proteomics plus Seahorse metabolic assay plus KO model, multiple orthogonal methods, single lab","pmids":["41250600"],"is_preprint":false}],"current_model":"ELMO1 is an evolutionarily conserved cytoplasmic adaptor protein that functions as the regulatory subunit of a bipartite Rac GEF complex with DOCK1/2/5 proteins: in its basal state ELMO1 adopts an autoinhibited closed conformation (EID-EAD intramolecular interaction) that mutually stabilizes DOCK autoinhibition; upstream signals (RhoG binding to ELMO1 RBD, phosphorylation of ELMO1 by Src/Hck at multiple tyrosines including Y511/Y724, acetylation at K505 by P300/SIRT2, binding of Gβγ or Gαi2 to its N-terminus, or interaction with activators such as FE65 or ARF6) relieve this autoinhibition, promote ELMO1 membrane translocation, and drive DOCK DHR2-mediated Rac1/Rac2 GTP loading to reorganize the actin cytoskeleton for cell migration, phagocytosis/engulfment, and related processes; additionally ELMO1 stabilizes DOCK protein levels by inhibiting their ubiquitin-proteasomal degradation, interacts with the Mediator subunit Med31 to regulate cytokine gene expression, and links to COX-2, NOD2, and mitochondrial DRP1 pathways in innate immune and metabolic contexts."},"narrative":{"mechanistic_narrative":"ELMO1 is an evolutionarily conserved cytoplasmic adaptor that serves as the regulatory subunit of a bipartite Rac guanine nucleotide exchange factor, partnering with DOCK1/2/5 proteins to drive actin-dependent processes including cell migration, apoptotic-cell engulfment, and phagocytosis [PMID:14638695, PMID:20844538]. ELMO1 binds DOCK proteins through two interfaces — its C-terminal PH domain engaging the DOCK N-terminus and its C-terminal proline-rich tail winding around the DOCK SH3 domain — and this association is required for DOCK-mediated Rac activation and actin polymerization [PMID:12829596, PMID:18768751, PMID:22331897]. Structural studies established that the binary ELMO1–DOCK complex rests in a closed, mutually autoinhibited conformation, and that upstream cues drive a closed-to-open transition exposing the DHR2 Rac1-binding surface; the ELMO1 PH domain further contacts nucleotide-free RAC1 to potentiate DOCK GEF activity [PMID:22331897, PMID:32651375, PMID:34290093, PMID:38857861]. Autoinhibition is relieved by multiple inputs: small-GTPase RhoG binding, tyrosine phosphorylation by Src-family kinases (notably at Y511 and Y724, which recruits Nck-1 and is required for Rac activation, spreading, and migration), Gβγ or Gαi2 binding to the ELMO1 N-terminus downstream of chemokine GPCRs, the FE65/ARF6 trafficking module, and acidic-lipid-driven conformational change at the membrane [PMID:15952790, PMID:26205662, PMID:27313788, PMID:23591873, PMID:29615491, PMID:33047393, PMID:41233496]. ELMO1 additionally stabilizes DOCK protein levels by blocking their ubiquitin-proteasomal degradation [PMID:16495483, PMID:24821968]. Genetically, ELMO1 acts downstream of engulfment receptors such as BAI1 and morphogenic cues including Netrin-1/Unc5B and RhoG to control Sertoli-cell clearance of apoptotic germ cells, vascular morphogenesis, neuronal spine and neurite formation, and Schwann-cell myelination [PMID:20844538, PMID:20466982, PMID:21900250, PMID:29615491, PMID:31161284]. Beyond its canonical GEF role, ELMO1 functions in innate immunity and inflammatory disease: it governs Salmonella internalization and LC3-associated phagocytosis, interacts with Med31 and NOD2 to shape cytokine output and bacterial clearance, regulates neutrophil recruitment and osteoclast bone resorption, and engages a Rac1-independent COX-2 pathway and SIRT1/DRP1 metabolic axes [PMID:26878033, PMID:29029244, PMID:23273896, PMID:36694274, PMID:30643265, PMID:34404802, PMID:20732417, PMID:38756351, PMID:41250600].","teleology":[{"year":2003,"claim":"Established the foundational mechanism: ELMO1 is not a standalone enzyme but the regulatory half of a bipartite Rac GEF, with DOCK supplying catalysis and ELMO1 supplying spatial control.","evidence":"Transwell migration with deletion mutants and C. elegans CED-5 rescue; Co-IP and Rac-activation rescue in T cells","pmids":["14638695","12829596"],"confidence":"High","gaps":["Did not resolve the structural basis of the ELMO1-DOCK interface","Did not define how upstream signals engage the complex"]},{"year":2005,"claim":"Identified tyrosine phosphorylation as an activating input: Src-family kinase Hck binds and phosphorylates ELMO1 at multiple tyrosines, with Y511 required for efficient Rac activation, phagocytosis, and migration.","evidence":"GST pulldown, in-cell co-IP, MS site mapping, and phospho-site mutants with phagocytosis/migration readouts","pmids":["12029088","15952790"],"confidence":"High","gaps":["Did not show how phosphorylation alters complex conformation","Did not identify phospho-tyrosine reader proteins"]},{"year":2006,"claim":"Revealed a second, non-catalytic ELMO1 function — protecting DOCK from degradation — establishing ELMO1 as a stabilizer of its own partner.","evidence":"In vivo ubiquitylation assay with proteasome-inhibitor rescue and ELMO1 mutants","pmids":["16495483"],"confidence":"Medium","gaps":["E3 ligase acting on DOCK not identified","Single lab; not extended to all DOCK paralogs at the time"]},{"year":2008,"claim":"Defined the molecular ELMO1-DOCK interface: the ELMO1 PH domain (FERM-like, non-lipid-binding) and proline-rich tail form a dual-interface contact, requiring disruption of both to break the complex.","evidence":"Crystal structure of ELMO1 PH domain with point mutagenesis and cellular Rac signaling assays","pmids":["18768751"],"confidence":"High","gaps":["Did not capture the full-length autoinhibited complex","Did not show the active Rac-bound state"]},{"year":2010,"claim":"Placed ELMO1 in an ordered in vivo engulfment pathway and a morphogenic signaling axis, demonstrating physiological roles beyond cultured cells.","evidence":"ELMO1 KO mouse with BAI1/RAC1 genetic epistasis; zebrafish elmo1 knockdown downstream of Netrin-1/Unc5B","pmids":["20844538","20466982"],"confidence":"High","gaps":["Did not address receptor-to-ELMO1 coupling mechanism","Netrin pathway evidence is morpholino-based, single lab"]},{"year":2012,"claim":"Resolved the mutual-autoinhibition logic of the complex structurally: DOCK and ELMO1 each suppress the other's autoinhibitory contacts, so binding primes the complex for activation.","evidence":"2.1-Å crystal structure of DOCK2-ELMO1 with mutagenesis and binding assays","pmids":["22331897"],"confidence":"High","gaps":["Did not visualize the open active state or Rac1 engagement","Did not show how upstream effectors trigger opening"]},{"year":2013,"claim":"Connected GPCR/heterotrimeric-G-protein signaling to the complex: Gαi2 drives ELMO1 membrane translocation and Rac activation downstream of chemokine receptors, linking the module to cancer cell migration.","evidence":"Reciprocal Co-IP, membrane fractionation, Rac assay, and in vivo metastasis knockdown","pmids":["23591873"],"confidence":"High","gaps":["Did not define the Gαi2-binding interface at residue level","Relationship to Gβγ binding not yet integrated"]},{"year":2014,"claim":"Demonstrated paralog-specific, physiologically relevant DOCK stabilization: endogenous ELMO1, not ELMO2, maintains DOCK2 levels in primary T cells and supports chemokine-driven chemotaxis.","evidence":"Co-IP from primary T cells, Elmo1 KO mouse, ubiquitination assay, proteasome rescue, and chemotaxis","pmids":["24821968","24928514"],"confidence":"High","gaps":["DOCK2 E3 ligase still unidentified","Nck-1/phospho-ELMO1 link based on pulldown and mutants in single lab"]},{"year":2015,"claim":"Expanded the activator repertoire and downstream output: Src phosphorylation at Y724 is essential for Rac-driven adhesion/migration, and ELMO1/DOCK signaling protects endothelial cells via Rac1/PAK/AKT.","evidence":"In vitro/in vivo phosphorylation with Y724F mutant and spreading assays; apoptosis assays plus zebrafish vessel formation; macrophage Salmonella internalization with KO mouse","pmids":["26205662","25586182","26878033"],"confidence":"High","gaps":["Anti-apoptotic and bacterial-internalization roles characterized in single labs","Mechanistic crosstalk between these branches unresolved"]},{"year":2017,"claim":"Identified non-canonical and regulatory branches: ELMO1 governs LC3-associated phagocytosis, is transcriptionally repressed by TGFβ in cancer stem cells, and competes for Ephexin4 to activate RhoG.","evidence":"siRNA/imaging with ATG5/ULK1 epistasis; Tgfbr2 KO carcinoma model; co-IP domain mapping with competition and engulfment assays","pmids":["29029244","28219480","28667327"],"confidence":"Medium","gaps":["LC3-phagocytosis molecular link to LC3 machinery incomplete","Each branch from a single lab"]},{"year":2020,"claim":"Visualized the activation cycle: cryo-EM captured closed autoinhibited and open Rac1-loaded states, showing how relief of autoinhibition exposes Rac1- and RhoG/BAI-binding surfaces.","evidence":"Cryo-EM of DOCK2-ELMO1 alone and with RAC1, RhoG-ELMO2-RBD crystal structure, and interface mutagenesis","pmids":["32651375"],"confidence":"High","gaps":["Did not capture membrane-bound active complex","Did not reconstitute all phospho/acetyl inputs structurally"]},{"year":2021,"claim":"Defined the catalytic contribution of the ELMO1 PH domain and broadened tissue roles: the PH domain directly contacts nucleotide-free RAC1 to enhance DOCK5 GEF activity, and ELMO1 is a druggable osteoclast signaling hub.","evidence":"3.8-Å cryo-EM of ELMO1-DOCK5-RAC1 with GEF assays; Elmo1 KO in four bone-loss models with proteomic interactome and inhibitory peptide; m6A regulation of ELMO1 in MSCs","pmids":["34290093","34404802","34508078"],"confidence":"High","gaps":["Osteoclast interactome partners (cathepsin G, MPO) mechanistically unintegrated with GEF role","m6A regulation single lab, Medium confidence"]},{"year":2024,"claim":"Integrated RhoG-driven activation and membrane/lipid control, and added post-translational and metabolic regulatory layers governing the activation switch and disease outputs.","evidence":"Cryo-EM of DOCK5/ELMO1±RhoG/Rac1 with SPR and GEF assays; K505 acetylation by P300/SIRT2 with Rac readout; ELMO1-SIRT1-p65 senescence axis in colitis KO mice","pmids":["38857861","38750717","38756351"],"confidence":"High","gaps":["How RhoG, phosphorylation, and acetylation inputs are combinatorially integrated unknown","Acetylation and senescence branches from single labs, Medium confidence"]},{"year":2025,"claim":"Showed that the plasma membrane lipid environment is itself an activating input, with acidic lipids driving a hinge rotation that tunes GEF activity, and extended ELMO1 into mitochondrial metabolic control during infection.","evidence":"Cryo-EM on lipid-coated grids with GEF assays and cellular signaling; TMT proteomics and Seahorse with ELMO1 KO macrophages linking ELMO1-DRP1 to TNF-α","pmids":["41233496","41250600"],"confidence":"High","gaps":["Metabolic/DRP1 branch mechanism Medium confidence, single lab","How lipid-, GTPase-, and PTM-driven conformational changes are coordinated on native membranes unresolved"]},{"year":null,"claim":"It remains unknown how the diverse activating inputs (RhoG, Gβγ/Gαi2, tyrosine phosphorylation, K505 acetylation, FE65/ARF6 trafficking, acidic lipids) are quantitatively integrated to set GEF output in a given cell type, and which E3 ligase ELMO1 antagonizes to stabilize DOCK proteins.","evidence":"","pmids":[],"confidence":"Medium","gaps":["No unified model linking PTMs, GTPase binding, and lipid sensing to graded activation","DOCK-targeting E3 ligase unidentified","Rac1-independent COX-2 and metabolic branches not mechanistically reconciled with the GEF function"]}],"mechanism_profile":{"molecular_activity":[{"term_id":"GO:0060090","term_label":"molecular adaptor activity","supporting_discovery_ids":[0,1,6,11]},{"term_id":"GO:0098772","term_label":"molecular function regulator activity","supporting_discovery_ids":[11,26,27,36]},{"term_id":"GO:0005198","term_label":"structural molecule activity","supporting_discovery_ids":[6,27]}],"localization":[{"term_id":"GO:0005829","term_label":"cytosol","supporting_discovery_ids":[0,13,19]},{"term_id":"GO:0005886","term_label":"plasma membrane","supporting_discovery_ids":[4,13,19,22,34,39]},{"term_id":"GO:0031410","term_label":"cytoplasmic vesicle","supporting_discovery_ids":[20,34]}],"pathway":[{"term_id":"R-HSA-162582","term_label":"Signal Transduction","supporting_discovery_ids":[0,13,19,36]},{"term_id":"R-HSA-168256","term_label":"Immune System","supporting_discovery_ids":[12,17,20,23,35]},{"term_id":"R-HSA-1266738","term_label":"Developmental Biology","supporting_discovery_ids":[9,10,33]},{"term_id":"R-HSA-5357801","term_label":"Programmed Cell Death","supporting_discovery_ids":[8,16,31]}],"complexes":["ELMO1-DOCK180/DOCK1 bipartite Rac GEF","DOCK2-ELMO1 complex","DOCK5-ELMO1 complex","FE65-ELMO1-DOCK180 tripartite complex"],"partners":["DOCK1","DOCK2","DOCK5","RHOG","RAC1","HCK","GNAI2","FE65"],"other_free_text":[]}},"prefetch_data":{"uniprot":{"accession":"Q92556","full_name":"Engulfment and cell motility protein 1","aliases":["Protein ced-12 homolog"],"length_aa":727,"mass_kda":83.8,"function":"Involved in cytoskeletal rearrangements required for phagocytosis of apoptotic cells and cell motility. Acts in association with DOCK1 and CRK. Was initially proposed to be required in complex with DOCK1 to activate Rac Rho small GTPases. May enhance the guanine nucleotide exchange factor (GEF) activity of DOCK1","subcellular_location":"Cytoplasm; Cell membrane","url":"https://www.uniprot.org/uniprotkb/Q92556/entry"},"depmap":{"release":"DepMap","has_data":true,"is_common_essential":false,"resolved_as":"","url":"https://depmap.org/portal/gene/ELMO1","classification":"Not Classified","n_dependent_lines":9,"n_total_lines":1208,"dependency_fraction":0.0074503311258278145},"opencell":{"profiled":false,"resolved_as":"","ensg_id":"","cell_line_id":"","localizations":[],"interactors":[],"url":"https://opencell.sf.czbiohub.org/search/ELMO1","total_profiled":1310},"omim":[{"mim_id":"620492","title":"MEDIATOR COMPLEX SUBUNIT 31; MED31","url":"https://www.omim.org/entry/620492"},{"mim_id":"618871","title":"RHO GUANINE NUCLEOTIDE EXCHANGE FACTOR 16; ARHGEF16","url":"https://www.omim.org/entry/618871"},{"mim_id":"615456","title":"ELMO/CED12 DOMAIN-CONTAINING PROTEIN 1; ELMOD1","url":"https://www.omim.org/entry/615456"},{"mim_id":"615427","title":"ELMO/CED12 DOMAIN-CONTAINING PROTEIN 3; ELMOD3","url":"https://www.omim.org/entry/615427"},{"mim_id":"610196","title":"ELMO/CED12 DOMAIN-CONTAINING PROTEIN 2; ELMOD2","url":"https://www.omim.org/entry/610196"}],"hpa":{"profiled":true,"resolved_as":"","reliability":"","locations":[],"tissue_specificity":"Tissue enhanced","tissue_distribution":"Detected in all","driving_tissues":[{"tissue":"brain","ntpm":117.5}],"url":"https://www.proteinatlas.org/search/ELMO1"},"hgnc":{"alias_symbol":["KIAA0281","CED12","ELMO-1","CED-12"],"prev_symbol":[]},"alphafold":{"accession":"Q92556","domains":[{"cath_id":"-","chopping":"175-285","consensus_level":"medium","plddt":91.2041,"start":175,"end":285},{"cath_id":"-","chopping":"312-335_344-522","consensus_level":"high","plddt":93.4941,"start":312,"end":522},{"cath_id":"2.30.29.30","chopping":"551-683","consensus_level":"high","plddt":86.0451,"start":551,"end":683}],"viewer_url":"https://alphafold.ebi.ac.uk/entry/Q92556","model_url":"https://alphafold.ebi.ac.uk/files/AF-Q92556-F1-model_v6.cif","pae_url":"https://alphafold.ebi.ac.uk/files/AF-Q92556-F1-predicted_aligned_error_v6.png","plddt_mean":88.88},"mouse_models":{"mgi_url":"https://www.informatics.jax.org/marker/summary?nomen=ELMO1","jax_strain_url":"https://www.jax.org/strain/search?query=ELMO1"},"sequence":{"accession":"Q92556","fasta_url":"https://rest.uniprot.org/uniprotkb/Q92556.fasta","uniprot_url":"https://www.uniprot.org/uniprotkb/Q92556/entry","alphafold_viewer_url":"https://alphafold.ebi.ac.uk/entry/Q92556"}},"corpus_meta":[{"pmid":"14638695","id":"PMC_14638695","title":"Dock180 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forms a complex with DOCK180 to function as a bipartite guanine nucleotide exchange factor (GEF) for Rac1, promoting cell migration; the N-terminal 330 amino acids of ELMO1 are required for localization to lamellipodia and migration but not for Rac activation per se, indicating that spatial control of Rac activation is critical.\",\n      \"method\": \"Transwell migration assay with ELMO1/DOCK180 deletion mutants; C. elegans transgenic rescue of CED-5 mutant\",\n      \"journal\": \"The Journal of biological chemistry\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — epistasis in C. elegans and in vitro mutant analysis in multiple cell systems, replicated across organisms\",\n      \"pmids\": [\"14638695\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2003,\n      \"finding\": \"DOCK2 associates with ELMO1 through its SH3 domain; this association is required for DOCK2-mediated Rac activation and actin polymerization in T cells — a DOCK2 mutant lacking the ELMO1-binding region fails to activate Rac.\",\n      \"method\": \"Co-immunoprecipitation; expression of DOCK2 mutant lacking ELMO1-binding region in T-hybridoma cells; Rac activation assay\",\n      \"journal\": \"Blood\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — reciprocal binding and functional rescue experiments, replicated by multiple later studies\",\n      \"pmids\": [\"12829596\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2002,\n      \"finding\": \"ELMO1 directly binds the SH3 domain of the Src-family kinase Hck via a polyproline motif, and is heavily tyrosine-phosphorylated in cells co-expressing Hck, identifying ELMO1 as a substrate of Hck.\",\n      \"method\": \"GST pulldown with purified proteins; co-immunoprecipitation in intact cells; mass spectrometry identification; phosphorylation detected by immunoblot\",\n      \"journal\": \"The Journal of biological chemistry\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — direct binding confirmed with purified proteins and in-cell co-IP, single lab\",\n      \"pmids\": [\"12029088\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2005,\n      \"finding\": \"Hck phosphorylates ELMO1 at Tyr18, Tyr216, Tyr395, Tyr511, and Tyr720; mutants lacking these sites are defective in promoting phagocytosis and migration, with Tyr511 being particularly important; these mutants retain Dock180 and Crk binding but show reduced Rac activation.\",\n      \"method\": \"Mass spectrometry identification of phosphorylation sites; site-directed mutagenesis; phagocytosis and migration assays; Rac activation assay\",\n      \"journal\": \"Biochemistry\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1 / Moderate — in vitro kinase assay with MS identification, mutagenesis with functional phenotypic readouts, single lab\",\n      \"pmids\": [\"15952790\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2005,\n      \"finding\": \"ELMO1 directly interacts with ERM proteins (e.g., radixin) via its N-terminal 280 amino acids, a region overlapping with the RhoG-binding site but distinct from the C-terminal Dock180-binding region; ELMO1 can simultaneously bind radixin and Dock180; radixin binding occurs independently of radixin C-terminal phosphorylation status.\",\n      \"method\": \"In vitro pulldown with purified recombinant proteins; co-immunoprecipitation at endogenous levels; domain-mapping with deletion mutants; co-localization at plasma membrane\",\n      \"journal\": \"The Journal of biological chemistry\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1 / Moderate — reconstituted direct interaction with purified proteins and endogenous co-IP, domain mapping, single lab\",\n      \"pmids\": [\"16377631\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2006,\n      \"finding\": \"ELMO1 inhibits ubiquitylation of Dock180, preventing its proteasomal degradation; Dock180 is ubiquitylated on the plasma membrane, enhanced by EGF, Crk, and adhesion signals, and ELMO1 binding (via its N-terminal region encompassing aa 531+) blocks this ubiquitylation.\",\n      \"method\": \"In vivo ubiquitylation assay; proteasome inhibitor treatment; co-expression experiments; immunofluorescence showing membrane translocation of ubiquitinated Dock180\",\n      \"journal\": \"Journal of cell science\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — functional ubiquitylation assay with ELMO1 mutants, two orthogonal methods (ubiquitylation assay + proteasome inhibitor rescue), single lab\",\n      \"pmids\": [\"16495483\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2008,\n      \"finding\": \"The C-terminal ~200 aa of ELMO1, comprising its PH domain, mediate direct interaction with the N-terminal ~200 aa of DOCK180; the ELMO1 PH domain cannot bind phospholipids but structurally resembles FERM domains; an N-terminal amphipathic alpha-helix in this PH domain is critical for DOCK180 binding (point mutants of invariant hydrophobic residues disrupt complex formation); a secondary interaction involves the DOCK180 SH3 domain and ELMO1 C-terminal proline-rich motifs; disrupting both interfaces is required to abrogate the complex.\",\n      \"method\": \"Crystal structure of ELMO1 PH domain; biochemical binding assays; point mutagenesis of hydrophobic helix residues; Rac signaling assays in cells\",\n      \"journal\": \"Molecular biology of the cell\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1 / Strong — crystal structure plus mutagenesis plus functional Rac signaling assay, multiple orthogonal methods\",\n      \"pmids\": [\"18768751\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2004,\n      \"finding\": \"HIV-1 Nef binds the DOCK2-ELMO1 complex (purified to near homogeneity from T cells), activates Rac in T cells, and inhibits lymphocyte chemotaxis through this interaction.\",\n      \"method\": \"Proteomic purification of Nef-associated complex; mass spectrometry identification; Rac activation assay; chemotaxis assay\",\n      \"journal\": \"PLoS biology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — near-homogeneous purification and MS identification, functional chemotaxis and Rac activation assays, replicated functionally\",\n      \"pmids\": [\"14737186\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2010,\n      \"finding\": \"ELMO1-deficient mice display defective phagocytic clearance of apoptotic germ cells by Sertoli cells, resulting in testicular pathology; the pathway involves BAI1 (upstream receptor) → ELMO1 → DOCK1 → RAC1 (downstream), as shown by genetic epistasis in vivo.\",\n      \"method\": \"ELMO1 knockout mouse; histopathology; in vitro and in vivo engulfment assays; genetic epistasis with BAI1 and RAC1 loss-of-function\",\n      \"journal\": \"Nature\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — KO mouse with specific pathological phenotype, genetic epistasis ordering pathway, in vitro and in vivo validation\",\n      \"pmids\": [\"20844538\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2010,\n      \"finding\": \"ELMO1/DOCK180 acts downstream of Netrin-1/Unc5B receptor signaling to activate Rac1 in endothelial cells, regulating vascular morphogenesis in zebrafish.\",\n      \"method\": \"Morpholino knockdown of elmo1 in zebrafish; in situ hybridization; functional interaction assays with Netrin-1/Unc5B signaling components\",\n      \"journal\": \"Circulation research\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — morpholino KD with vascular phenotype, identification of upstream activators, single lab\",\n      \"pmids\": [\"20466982\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2011,\n      \"finding\": \"RhoG functions upstream of ELMO1/Dock180 to regulate Rac GTPase and spine morphogenesis in hippocampal neurons; depletion of Dock180 or ELMO1 inhibits spine formation, and overexpression promotes it, establishing the RhoG/ELMO1/Dock180 module in this process.\",\n      \"method\": \"RNAi screen of 70 Rho GEFs in hippocampal neurons; overexpression and knockdown of individual components; Rac activation assays\",\n      \"journal\": \"The Journal of biological chemistry\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — RNAi and OE with morphological readout, pathway ordering via epistasis, single lab\",\n      \"pmids\": [\"21900250\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2012,\n      \"finding\": \"Crystal structure of DOCK2-ELMO1 complex at 2.1-Å resolution reveals: the ELMO1 C-terminal Pro-rich tail winds around the DOCK2 SH3 domain; an intermolecular five-helix bundle forms at the interface; DOCK2 DHR2 GEF domain autoinhibits DOCK2 by associating with its ELMO-interacting region, and ELMO1 binding weakens this autoinhibitory interaction; conversely, the N- and C-terminal regions of ELMO1 mediate its own autoinhibition, and DOCK2 binding buries the ELMO1 autoinhibitory residues — thus DOCK2 and ELMO1 mutually relieve autoinhibition.\",\n      \"method\": \"Crystal structure at 2.1 Å; mutagenesis; biochemical binding assays\",\n      \"journal\": \"Proceedings of the National Academy of Sciences of the United States of America\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1 / Strong — high-resolution crystal structure plus mutagenesis confirming functional significance, single rigorous study\",\n      \"pmids\": [\"22331897\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2012,\n      \"finding\": \"ELMO1 binds the Mediator complex subunit Med31; during Salmonella infection in macrophages, ELMO1 increases cytoplasmic localization of Med31 and enhances monoubiquitination of Med31, specifically affecting IL-10 and IL-33 gene expression.\",\n      \"method\": \"Co-immunoprecipitation; subcellular fractionation; ubiquitination assay; gene expression analysis in macrophages\",\n      \"journal\": \"Current biology : CB\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — co-IP plus functional gene expression readout, two orthogonal methods, single lab\",\n      \"pmids\": [\"23273896\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2013,\n      \"finding\": \"CXCL12 stimulation promotes interaction between Gαi2 and ELMO1; Gi signaling triggers Gαi2-dependent membrane translocation of ELMO1, which then associates with Dock180 to activate Rac1 and Rac2, linking GPCR/Gi signaling to actin polymerization and breast cancer cell migration.\",\n      \"method\": \"Co-immunoprecipitation; membrane fractionation; knockdown of ELMO1 and Gαi2; Rac activation assay; in vivo metastasis assay\",\n      \"journal\": \"Nature communications\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — reciprocal co-IP, membrane translocation assay, Rac activation, in vivo metastasis knockdown, multiple orthogonal methods\",\n      \"pmids\": [\"23591873\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2014,\n      \"finding\": \"Endogenous ELMO1 (but not ELMO2) constitutively interacts with Dock2 in primary mouse and human T cells; Elmo1 deficiency reduces Dock2 protein levels (by ~4-fold) through increased Dock2 polyubiquitination and proteasomal degradation; Elmo1 expression in heterologous cells inhibits Dock2 ubiquitination; loss of ELMO1 impairs CCR7- and CXCR4-dependent Rac activation and T cell chemotaxis.\",\n      \"method\": \"Co-immunoprecipitation from primary T cells; Elmo1 KO mouse; proteasome inhibitor rescue; ubiquitination assay; Rac activation assay; chemotaxis assay; transfection rescue with Elmo1 mutants\",\n      \"journal\": \"Journal of immunology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — KO mouse, multiple orthogonal methods (co-IP, ubiquitination assay, proteasome inhibitor, chemotaxis), mutant rescue\",\n      \"pmids\": [\"24821968\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2014,\n      \"finding\": \"Arhgef16 interacts with ELMO1 in mammalian cells (identified by yeast two-hybrid and confirmed by co-IP); Arhgef16-mediated engulfment of apoptotic cells is synergistically increased by ELMO1 but abrogated in its absence; this pathway is RhoG-dependent and Dock1-independent.\",\n      \"method\": \"Yeast two-hybrid screen; co-immunoprecipitation; apoptotic cell engulfment assay; RhoG and Dock1 epistasis experiments\",\n      \"journal\": \"Biochimica et biophysica acta\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 3 / Moderate — yeast two-hybrid and co-IP plus functional engulfment assay with epistasis, single lab\",\n      \"pmids\": [\"25063526\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2015,\n      \"finding\": \"ELMO1/Dock180 protects endothelial cells from apoptosis via activation of the Rac1/PAK/AKT signaling cascade; overexpression reduces caspase-3/7 activity and annexin V staining; this anti-apoptotic effect is Rac1-dependent.\",\n      \"method\": \"Overexpression and knockdown in human endothelial cells; caspase-3/7 activity assay; annexin V staining; PAK and AKT phosphorylation assays; zebrafish embryo apoptosis and vessel formation assays\",\n      \"journal\": \"The Journal of biological chemistry\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — multiple in vitro apoptosis readouts plus in vivo zebrafish validation, single lab\",\n      \"pmids\": [\"25586182\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2015,\n      \"finding\": \"ELMO1 is required for Salmonella internalization by macrophages via a BAI1-ELMO1-Rac1 pathway; ELMO1 depletion reduces Rac1 activation (~6-fold), impairs bacterial internalization, reduces TNF-α and MCP-1 release, and attenuates NF-κB, ERK1/2, and p38 MAP kinase activation; in vivo, ELMO1-deficient mice show 90% reduction in bacterial burden.\",\n      \"method\": \"siRNA knockdown in macrophage cell lines and intestinal macrophages; ELMO1 KO mice; Rac1 pulldown assay; cytokine array; signaling pathway (NF-κB, ERK, p38) assays\",\n      \"journal\": \"Cellular and molecular gastroenterology and hepatology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — KO mouse with in vivo phenotype, multiple orthogonal in vitro assays, Rac1 activation measured directly\",\n      \"pmids\": [\"26878033\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2015,\n      \"finding\": \"Src phosphorylates ELMO1 at Tyr724 (and Tyr720); Y724F mutation abolishes Src-induced Rac1 activation, impairs cell spreading on fibronectin, and inhibits actin stress fiber/focal adhesion assembly and cell migration.\",\n      \"method\": \"In vivo and in vitro phosphorylation assays; site-directed mutagenesis (Y724F); stable cell lines; Rac1 activity assay; cell spreading/migration assays\",\n      \"journal\": \"Cell communication and signaling : CCS\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1 / Moderate — in vitro kinase assay plus mutagenesis with functional cellular readouts, single lab\",\n      \"pmids\": [\"26205662\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2016,\n      \"finding\": \"ELMO1 directly interacts with Gβγ subunit upon chemokine GPCR activation; the interaction is through the N-terminus of ELMO1; Gβγ-ELMO1 interaction is required for ELMO1 membrane translocation and subsequent Rac1 activation during chemotaxis.\",\n      \"method\": \"Co-immunoprecipitation showing ELMO1-Gβγ interaction; ELMO1 deletion mutants mapping N-terminal binding; membrane fractionation; Rac1 activation assay; chemotaxis assay\",\n      \"journal\": \"Journal of Cancer\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — co-IP plus domain mapping plus Rac1 activation readout, single lab\",\n      \"pmids\": [\"27313788\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2017,\n      \"finding\": \"ELMO1 regulates LC3-associated phagocytosis (but not classical ULK1-dependent autophagy) during Salmonella infection; ELMO1 is present in intracellular vesicles/phagosomes and enhances LC3B accumulation via ATG5-dependent pathway; ELMO1 depletion increases phagosomal pH and decreases cathepsin B activity, impairing bacterial clearance.\",\n      \"method\": \"siRNA knockdown; immunofluorescence of ELMO1 in vesicles; LC3B accumulation assay; phagosomal pH measurement; cathepsin B activity assay; ATG5 and ULK1 epistasis\",\n      \"journal\": \"The Journal of infectious diseases\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — subcellular localization with functional consequence, multiple orthogonal assays, single lab\",\n      \"pmids\": [\"29029244\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2017,\n      \"finding\": \"TGFβ signaling represses ELMO1 expression; loss of TGFβ receptor II (Tgfbr2) de-represses ELMO1 specifically in cancer stem cells, promoting invasion and metastasis; restoration of Tgfbr2 completely blocks ELMO1 expression in vivo.\",\n      \"method\": \"Mouse model of Tgfbr2 KO squamous cell carcinoma; Elmo1 knockdown impairing lung metastasis; genetic rescue with Tgfbr2 restoration\",\n      \"journal\": \"eLife\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — in vivo genetic model with pathway epistasis and metastasis readout, single lab\",\n      \"pmids\": [\"28219480\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2018,\n      \"finding\": \"FE65 neuronal adaptor interacts with ELMO1 N-terminal region, activates ELMO1 by disrupting its intramolecular autoinhibitory interaction (between ELMO1 N-terminal EID and C-terminal EAD), promotes ELMO1 plasma membrane targeting, and thereby enhances DOCK180-mediated Rac1 activation and neurite outgrowth; FE65, ELMO1, and DOCK180 form a tripartite complex.\",\n      \"method\": \"Co-immunoprecipitation; ELMO1 autoinhibition disruption assay; plasma membrane fractionation; Rac1 activation assay; neurite outgrowth measurement; FE65 double mutant that disrupts ELMO1 binding as control\",\n      \"journal\": \"The Journal of biological chemistry\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — multiple orthogonal methods (co-IP, membrane fractionation, Rac1 assay, neurite measurement), single lab\",\n      \"pmids\": [\"29615491\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2019,\n      \"finding\": \"ELMO1 associates with receptors linked to neutrophil function and regulates neutrophil activation and early recruitment to joints; Elmo1-deficient mice show reduced joint inflammation in arthritis models; human donors with ELMO1 SNP show increased neutrophil migratory capacity; ELMO1 knockdown reduces human neutrophil migration to arthritis-associated chemokines.\",\n      \"method\": \"Elmo1 KO mouse in acute and chronic arthritis models; genetic and cell-biology studies linking ELMO1 to neutrophil receptors; human neutrophil migration assays with ELMO1 knockdown\",\n      \"journal\": \"Nature immunology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — KO mouse in multiple disease models, cell-biology experiments in human neutrophils, genetic and functional evidence converging\",\n      \"pmids\": [\"30643265\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2019,\n      \"finding\": \"ELMO1 interacts with active RhoG in platelets; ELMO1 deficiency enhances platelet aggregation, granule secretion, integrin αIIbβ3 activation, thromboxane generation, and spreading specifically downstream of GPVI agonists but not PAR4; RhoG activity is enhanced in ELMO1-deficient platelets, indicating ELMO1 negatively regulates GPVI-mediated thrombus formation via RhoG.\",\n      \"method\": \"ELMO1 KO mouse; platelet aggregation, secretion, integrin activation assays; RhoG pulldown assay; ferric-chloride injury model; pulmonary embolism model\",\n      \"journal\": \"Blood advances\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — KO mouse with multiple orthogonal platelet function assays, in vivo thrombosis models, mechanism linked to RhoG\",\n      \"pmids\": [\"30787021\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2019,\n      \"finding\": \"Nck-1 SH2 domain interacts with phosphotyrosine residues (Tyr18, Tyr216, Tyr395, Tyr511) on ELMO1; this interaction augments ELMO1-RhoG binding, promotes Rac1 activation, and increases cell motility; an SH2-inactive Nck-1 mutant (R308K) or a 4YF ELMO1 mutant lacking these phosphotyrosines abolishes the interaction.\",\n      \"method\": \"GST pulldown; co-immunoprecipitation; site-directed mutagenesis; tyrosine phosphatase inhibitor and Hck co-expression; Rac1 activation assay; cell motility assay\",\n      \"journal\": \"The Journal of biological chemistry\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — direct binding confirmed by pulldown and co-IP, mutagenesis with functional readouts, single lab\",\n      \"pmids\": [\"24928514\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2020,\n      \"finding\": \"Cryo-EM structures of DOCK2-ELMO1 alone and as ternary complex with RAC1, plus crystal structure of RhoG-ELMO2-RBD: the binary complex adopts a closed autoinhibited conformation; relief of autoinhibition to an open state exposes RAC1-binding sites on DOCK2 DHR2 and RHOG/BAI GPCR-binding sites on ELMO1; upstream effectors including phosphorylation of DOCK2 and ELMO1 destabilize the autoinhibited state.\",\n      \"method\": \"Cryo-EM structure of DOCK2-ELMO1 alone and with RAC1; crystal structure of RHOG-ELMO2-RBD; mutagenesis validating interface residues\",\n      \"journal\": \"Nature communications\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1 / Strong — cryo-EM and crystal structures with mutagenesis validation, multiple structural states determined\",\n      \"pmids\": [\"32651375\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2021,\n      \"finding\": \"Cryo-EM structure of active ELMO1-DOCK5 complex bound to RAC1 at 3.8 Å: the C-terminal PH domain of ELMO1 aids binding of DOCK5 DHR2 to nucleotide-free RAC1; an alpha-helical scaffold between ELMO1 and DOCK5 stabilizes RAC1 binding; mutagenesis confirmed that the PH domain of ELMO1 enhances GEF activity of DOCK5 through direct interactions with RAC1.\",\n      \"method\": \"Cryo-EM structure at 3.8 Å; site-directed mutagenesis; GEF activity assay\",\n      \"journal\": \"Science advances\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1 / Strong — cryo-EM structure plus mutagenesis plus in vitro GEF activity assay\",\n      \"pmids\": [\"34290093\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2021,\n      \"finding\": \"TNF-α increases ELMO1 expression in ankylosing spondylitis MSCs via METTL14-dependent m6A modification of ELMO1 3'UTR; elevated ELMO1 drives enhanced directional migration of MSCs; inhibiting ELMO1 in SKG mice has therapeutic effects in spondyloarthritis.\",\n      \"method\": \"m6A modification analysis; METTL14 knockdown/overexpression; ELMO1 expression assays; in vitro and in vivo migration assays; SKG mouse model with ELMO1 inhibition\",\n      \"journal\": \"Nature communications\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — m6A writer identified, in vivo therapeutic model, multiple methods, single lab\",\n      \"pmids\": [\"34508078\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2021,\n      \"finding\": \"ELMO1 is a signaling hub in osteoclasts required for bone resorption; ELMO1 deletion reduces bone loss in four in vivo models (osteoprotegerin deficiency, ovariectomy, two inflammatory arthritis types); ELMO1 interactome in osteoclasts (defined by proteomics) includes cathepsin G and myeloperoxidase; ELMO1 contributes to osteoclast sealing zone formation; a structure-based ELMO1 inhibitory peptide reduces bone resorption in wild-type osteoclasts.\",\n      \"method\": \"Elmo1 KO mouse in four bone-loss models; CRISPR/Cas9 deletion; transcriptomics; proteomics of ELMO1 interactome; osteoclast sealing zone imaging; inhibitory peptide assay\",\n      \"journal\": \"Nature communications\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — KO mouse in multiple models, proteomic interactome, inhibitory peptide validation, multiple orthogonal methods\",\n      \"pmids\": [\"34404802\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2010,\n      \"finding\": \"ELMO1 interacts with COX-2 in human mesangial cells; this protein-protein interaction increases COX-2 cyclooxygenase activity and enhances fibronectin expression; a dominant-negative ELMO1 (ET625, lacking Rac1 activity) also increases COX-2 activity, and Rac1 itself has no effect on COX-2-mediated fibronectin, indicating a Rac1-independent mechanism.\",\n      \"method\": \"Co-immunoprecipitation; COX-2 cyclooxygenase activity assay; fibronectin promoter reporter assay; dominant-negative ELMO1 and constitutively active Rac1 constructs\",\n      \"journal\": \"Cellular signalling\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — co-IP plus enzymatic activity assay plus functional reporter, single lab\",\n      \"pmids\": [\"20732417\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2012,\n      \"finding\": \"Zebrafish elmo1 is required for macrophage-dependent engulfment of apoptotic cells; in elmo1-deficient macrophages, directed engulfment is rare and may shift to macropinocytosis; elmo1 is not required for apoptotic cell migration to the periphery.\",\n      \"method\": \"Live imaging of apoptotic cells in zebrafish brain; elmo1 morpholino knockdown; time-lapse microscopy of macrophage engulfment\",\n      \"journal\": \"Current biology : CB\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — live imaging in intact organism with morpholino KD, direct functional readout, single lab\",\n      \"pmids\": [\"22503503\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2017,\n      \"finding\": \"Elmo1 interacts with Ephexin4 SH3 domain and N20 region; Elmo1 competes with the Ephexin4 SH3 domain for binding to the N20 region, relieving intermolecular steric inhibition of Ephexin4 and promoting RhoG binding to Ephexin4, thereby activating RhoG for apoptotic cell engulfment.\",\n      \"method\": \"Co-immunoprecipitation; domain mapping; RhoG activation assay; apoptotic cell engulfment assay; deletion and competition binding experiments\",\n      \"journal\": \"Scientific reports\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — co-IP domain mapping with competition experiments and functional engulfment readout, single lab\",\n      \"pmids\": [\"28667327\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2019,\n      \"finding\": \"elmo1 mutant zebrafish show reduced neuronal numbers in the posterior lateral line ganglion and defective Schwann cell myelination; these defects are rescued by Rac1 activation; forced early expression of Elmo1 and Rac1 specifically in Schwann cells rescues myelination defects, indicating a cell-autonomous role for Elmo1/Rac1 in radial sorting and myelination.\",\n      \"method\": \"Zebrafish elmo1 mutant; genetic rescue with constitutively active Rac1; Schwann cell-specific rescue; macrophage inhibition experiments\",\n      \"journal\": \"Cellular and molecular life sciences : CMLS\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — genetic rescue experiments in zebrafish with cell-type-specific expression, multiple controls, single lab\",\n      \"pmids\": [\"31161284\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2020,\n      \"finding\": \"FE65 serves as a functional link between ARF6 and ELMO1 by forming a multimeric complex; FE65 promotes ELMO1 trafficking to the plasma membrane via the endosomal recycling pathway; disruption of FE65-ELMO1 interaction reduces ELMO1 plasma membrane abundance and attenuates ARF6-ELMO1-mediated Rac1 activation and neurite elongation.\",\n      \"method\": \"Co-immunoprecipitation; plasma membrane fractionation; recycling endosome localization assay; FE65 KO; Rac1 activation assay; neurite length measurement\",\n      \"journal\": \"FASEB journal\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — co-IP plus subcellular trafficking assays plus Rac1 functional readout, single lab\",\n      \"pmids\": [\"33047393\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2023,\n      \"finding\": \"ELMO1 interacts with NOD2; overexpression of ELMO1 with mutant NOD2 (L1007fs, associated with Crohn's disease) fails to clear adherent invasive E. coli; ELMO1-KO and NOD2-KO enteroid-derived monolayers show higher bacterial loads; combined ELMO1/NOD2 depletion in macrophages impairs bacterial clearance linked to reduced pro-inflammatory cytokines and reactive oxygen species.\",\n      \"method\": \"Co-immunoprecipitation (ELMO1-NOD2 interaction); ELMO1 KO and NOD2 KO mice; enteroid-derived monolayers; bacterial load measurement; cytokine and ROS assays\",\n      \"journal\": \"Virulence\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — co-IP plus KO models with functional bacterial clearance readout, single lab\",\n      \"pmids\": [\"36694274\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2024,\n      \"finding\": \"Cryo-EM structures of DOCK5/ELMO1 alone and in complex with RhoG and Rac1: DOCK5/ELMO1 adopts a closed autoinhibited conformation; RhoG binds both ELMO1 and DOCK5 and drives a closed-to-open conformational transition; the open state exposes Rac1 binding sites; RhoG enhances DOCK5/ELMO1 GEF activity and binding affinity for Rac1 (confirmed by SPR); the DOCK5 PIP3-binding site aligns with the RhoG C-terminal lipidation site, suggesting simultaneous membrane binding.\",\n      \"method\": \"Cryo-EM structures of three states; surface plasmon resonance (SPR); in vitro GEF activity assay\",\n      \"journal\": \"The Journal of biological chemistry\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1 / Strong — multiple cryo-EM structures plus SPR plus in vitro GEF activity assay, orthogonal methods\",\n      \"pmids\": [\"38857861\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2024,\n      \"finding\": \"P300 acetyltransferase acetylates ELMO1 at Lys505 (K505); SIRT2 deacetylates this site; K505 acetylation mediates ELMO1-Dock180 interaction and controls Rac1 activation; K505 acetylation does not affect ELMO1 localization or stability but is important for CRC progression.\",\n      \"method\": \"Immunoprecipitation and mass spectrometry to identify K505 acetylation; P300 and SIRT2 identified as writer/eraser; co-immunoprecipitation to assess ELMO1-Dock180 interaction; Rac1 activation assay; CRC cell functional assays\",\n      \"journal\": \"Experimental cell research\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — MS identification of acetylation site plus writer/eraser identification plus functional Rac1 readout, single lab\",\n      \"pmids\": [\"38750717\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2024,\n      \"finding\": \"ELMO1 depletion decreases SIRT1 deacetylase activity, enhances NF-κB (p65) acetylation, and accelerates intestinal epithelial cell senescence; deletion of ELMO1 leads to senescent IEC accumulation and premature fibrosis in murine colitis; irisin prevents ELMO1 degradation and reduces p65 acetylation and senescence, acting through the ELMO1-SIRT1-p65 pathway.\",\n      \"method\": \"ELMO1 KO mice with colitis model; SIRT1 deacetylase activity assay; p65 acetylation measurement; senescence assays (β-galactosidase, Lamin B1); irisin treatment rescue experiments\",\n      \"journal\": \"Gastroenterology report\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — KO mouse plus multiple senescence and signaling assays plus pharmacological rescue, single lab\",\n      \"pmids\": [\"38756351\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2025,\n      \"finding\": \"Cryo-EM reveals a new symmetrically flattened conformation of DOCK5/ELMO1/RhoG/Rac1 on a lipid membrane-coated grid; conformational changes are driven by interactions with acidic lipids through rotation at the DOCK5-ELMO1 hinge; acidic lipid-driven conformational changes regulate DOCK5/ELMO1 GEF activity on the plasma membrane and are essential for downstream signaling.\",\n      \"method\": \"Cryo-EM on lipid membrane-coated grid; biochemical GEF activity assays with acidic lipids; cellular signaling assays\",\n      \"journal\": \"Communications biology\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1 / Strong — cryo-EM structure on lipid membrane plus biochemical GEF assays plus cellular validation, novel structural state\",\n      \"pmids\": [\"41233496\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2025,\n      \"finding\": \"ELMO1 depletion in macrophages shifts Salmonella-induced mitochondrial metabolism from oxidative phosphorylation to glycolysis and decreases ATP rate index; ELMO1 depletion upregulates mitochondrial fission protein DRP1; pharmacological DRP1 inhibition links the ELMO1-DRP1 pathway to TNF-α regulation following infection; ELMO1 interacts with Salmonella effector SifA to modulate mitochondrial function.\",\n      \"method\": \"Multinotch MS3-TMT multiplexed proteomics; Seahorse metabolic analysis; ELMO1 KO macrophages and mice; DRP1 pharmacological inhibition; TNF-α cytokine measurement\",\n      \"journal\": \"Gut microbes\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 / Moderate — proteomics plus Seahorse metabolic assay plus KO model, multiple orthogonal methods, single lab\",\n      \"pmids\": [\"41250600\"],\n      \"is_preprint\": false\n    }\n  ],\n  \"current_model\": \"ELMO1 is an evolutionarily conserved cytoplasmic adaptor protein that functions as the regulatory subunit of a bipartite Rac GEF complex with DOCK1/2/5 proteins: in its basal state ELMO1 adopts an autoinhibited closed conformation (EID-EAD intramolecular interaction) that mutually stabilizes DOCK autoinhibition; upstream signals (RhoG binding to ELMO1 RBD, phosphorylation of ELMO1 by Src/Hck at multiple tyrosines including Y511/Y724, acetylation at K505 by P300/SIRT2, binding of Gβγ or Gαi2 to its N-terminus, or interaction with activators such as FE65 or ARF6) relieve this autoinhibition, promote ELMO1 membrane translocation, and drive DOCK DHR2-mediated Rac1/Rac2 GTP loading to reorganize the actin cytoskeleton for cell migration, phagocytosis/engulfment, and related processes; additionally ELMO1 stabilizes DOCK protein levels by inhibiting their ubiquitin-proteasomal degradation, interacts with the Mediator subunit Med31 to regulate cytokine gene expression, and links to COX-2, NOD2, and mitochondrial DRP1 pathways in innate immune and metabolic contexts.\"\n}\n```","stage2_raw":"{\n  \"mechanistic_narrative\": \"ELMO1 is an evolutionarily conserved cytoplasmic adaptor that serves as the regulatory subunit of a bipartite Rac guanine nucleotide exchange factor, partnering with DOCK1/2/5 proteins to drive actin-dependent processes including cell migration, apoptotic-cell engulfment, and phagocytosis [#0, #8]. ELMO1 binds DOCK proteins through two interfaces — its C-terminal PH domain engaging the DOCK N-terminus and its C-terminal proline-rich tail winding around the DOCK SH3 domain — and this association is required for DOCK-mediated Rac activation and actin polymerization [#1, #6, #11]. Structural studies established that the binary ELMO1–DOCK complex rests in a closed, mutually autoinhibited conformation, and that upstream cues drive a closed-to-open transition exposing the DHR2 Rac1-binding surface; the ELMO1 PH domain further contacts nucleotide-free RAC1 to potentiate DOCK GEF activity [#11, #26, #27, #36]. Autoinhibition is relieved by multiple inputs: small-GTPase RhoG binding, tyrosine phosphorylation by Src-family kinases (notably at Y511 and Y724, which recruits Nck-1 and is required for Rac activation, spreading, and migration), Gβγ or Gαi2 binding to the ELMO1 N-terminus downstream of chemokine GPCRs, the FE65/ARF6 trafficking module, and acidic-lipid-driven conformational change at the membrane [#3, #18, #19, #13, #22, #34, #39]. ELMO1 additionally stabilizes DOCK protein levels by blocking their ubiquitin-proteasomal degradation [#5, #14]. Genetically, ELMO1 acts downstream of engulfment receptors such as BAI1 and morphogenic cues including Netrin-1/Unc5B and RhoG to control Sertoli-cell clearance of apoptotic germ cells, vascular morphogenesis, neuronal spine and neurite formation, and Schwann-cell myelination [#8, #9, #10, #22, #33]. Beyond its canonical GEF role, ELMO1 functions in innate immunity and inflammatory disease: it governs Salmonella internalization and LC3-associated phagocytosis, interacts with Med31 and NOD2 to shape cytokine output and bacterial clearance, regulates neutrophil recruitment and osteoclast bone resorption, and engages a Rac1-independent COX-2 pathway and SIRT1/DRP1 metabolic axes [#17, #20, #12, #35, #23, #29, #30, #38, #40].\",\n  \"teleology\": [\n    {\n      \"year\": 2003,\n      \"claim\": \"Established the foundational mechanism: ELMO1 is not a standalone enzyme but the regulatory half of a bipartite Rac GEF, with DOCK supplying catalysis and ELMO1 supplying spatial control.\",\n      \"evidence\": \"Transwell migration with deletion mutants and C. elegans CED-5 rescue; Co-IP and Rac-activation rescue in T cells\",\n      \"pmids\": [\"14638695\", \"12829596\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Did not resolve the structural basis of the ELMO1-DOCK interface\", \"Did not define how upstream signals engage the complex\"]\n    },\n    {\n      \"year\": 2005,\n      \"claim\": \"Identified tyrosine phosphorylation as an activating input: Src-family kinase Hck binds and phosphorylates ELMO1 at multiple tyrosines, with Y511 required for efficient Rac activation, phagocytosis, and migration.\",\n      \"evidence\": \"GST pulldown, in-cell co-IP, MS site mapping, and phospho-site mutants with phagocytosis/migration readouts\",\n      \"pmids\": [\"12029088\", \"15952790\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Did not show how phosphorylation alters complex conformation\", \"Did not identify phospho-tyrosine reader proteins\"]\n    },\n    {\n      \"year\": 2006,\n      \"claim\": \"Revealed a second, non-catalytic ELMO1 function — protecting DOCK from degradation — establishing ELMO1 as a stabilizer of its own partner.\",\n      \"evidence\": \"In vivo ubiquitylation assay with proteasome-inhibitor rescue and ELMO1 mutants\",\n      \"pmids\": [\"16495483\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"E3 ligase acting on DOCK not identified\", \"Single lab; not extended to all DOCK paralogs at the time\"]\n    },\n    {\n      \"year\": 2008,\n      \"claim\": \"Defined the molecular ELMO1-DOCK interface: the ELMO1 PH domain (FERM-like, non-lipid-binding) and proline-rich tail form a dual-interface contact, requiring disruption of both to break the complex.\",\n      \"evidence\": \"Crystal structure of ELMO1 PH domain with point mutagenesis and cellular Rac signaling assays\",\n      \"pmids\": [\"18768751\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Did not capture the full-length autoinhibited complex\", \"Did not show the active Rac-bound state\"]\n    },\n    {\n      \"year\": 2010,\n      \"claim\": \"Placed ELMO1 in an ordered in vivo engulfment pathway and a morphogenic signaling axis, demonstrating physiological roles beyond cultured cells.\",\n      \"evidence\": \"ELMO1 KO mouse with BAI1/RAC1 genetic epistasis; zebrafish elmo1 knockdown downstream of Netrin-1/Unc5B\",\n      \"pmids\": [\"20844538\", \"20466982\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Did not address receptor-to-ELMO1 coupling mechanism\", \"Netrin pathway evidence is morpholino-based, single lab\"]\n    },\n    {\n      \"year\": 2012,\n      \"claim\": \"Resolved the mutual-autoinhibition logic of the complex structurally: DOCK and ELMO1 each suppress the other's autoinhibitory contacts, so binding primes the complex for activation.\",\n      \"evidence\": \"2.1-Å crystal structure of DOCK2-ELMO1 with mutagenesis and binding assays\",\n      \"pmids\": [\"22331897\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Did not visualize the open active state or Rac1 engagement\", \"Did not show how upstream effectors trigger opening\"]\n    },\n    {\n      \"year\": 2013,\n      \"claim\": \"Connected GPCR/heterotrimeric-G-protein signaling to the complex: Gαi2 drives ELMO1 membrane translocation and Rac activation downstream of chemokine receptors, linking the module to cancer cell migration.\",\n      \"evidence\": \"Reciprocal Co-IP, membrane fractionation, Rac assay, and in vivo metastasis knockdown\",\n      \"pmids\": [\"23591873\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Did not define the Gαi2-binding interface at residue level\", \"Relationship to Gβγ binding not yet integrated\"]\n    },\n    {\n      \"year\": 2014,\n      \"claim\": \"Demonstrated paralog-specific, physiologically relevant DOCK stabilization: endogenous ELMO1, not ELMO2, maintains DOCK2 levels in primary T cells and supports chemokine-driven chemotaxis.\",\n      \"evidence\": \"Co-IP from primary T cells, Elmo1 KO mouse, ubiquitination assay, proteasome rescue, and chemotaxis\",\n      \"pmids\": [\"24821968\", \"24928514\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"DOCK2 E3 ligase still unidentified\", \"Nck-1/phospho-ELMO1 link based on pulldown and mutants in single lab\"]\n    },\n    {\n      \"year\": 2015,\n      \"claim\": \"Expanded the activator repertoire and downstream output: Src phosphorylation at Y724 is essential for Rac-driven adhesion/migration, and ELMO1/DOCK signaling protects endothelial cells via Rac1/PAK/AKT.\",\n      \"evidence\": \"In vitro/in vivo phosphorylation with Y724F mutant and spreading assays; apoptosis assays plus zebrafish vessel formation; macrophage Salmonella internalization with KO mouse\",\n      \"pmids\": [\"26205662\", \"25586182\", \"26878033\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Anti-apoptotic and bacterial-internalization roles characterized in single labs\", \"Mechanistic crosstalk between these branches unresolved\"]\n    },\n    {\n      \"year\": 2017,\n      \"claim\": \"Identified non-canonical and regulatory branches: ELMO1 governs LC3-associated phagocytosis, is transcriptionally repressed by TGFβ in cancer stem cells, and competes for Ephexin4 to activate RhoG.\",\n      \"evidence\": \"siRNA/imaging with ATG5/ULK1 epistasis; Tgfbr2 KO carcinoma model; co-IP domain mapping with competition and engulfment assays\",\n      \"pmids\": [\"29029244\", \"28219480\", \"28667327\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"LC3-phagocytosis molecular link to LC3 machinery incomplete\", \"Each branch from a single lab\"]\n    },\n    {\n      \"year\": 2020,\n      \"claim\": \"Visualized the activation cycle: cryo-EM captured closed autoinhibited and open Rac1-loaded states, showing how relief of autoinhibition exposes Rac1- and RhoG/BAI-binding surfaces.\",\n      \"evidence\": \"Cryo-EM of DOCK2-ELMO1 alone and with RAC1, RhoG-ELMO2-RBD crystal structure, and interface mutagenesis\",\n      \"pmids\": [\"32651375\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Did not capture membrane-bound active complex\", \"Did not reconstitute all phospho/acetyl inputs structurally\"]\n    },\n    {\n      \"year\": 2021,\n      \"claim\": \"Defined the catalytic contribution of the ELMO1 PH domain and broadened tissue roles: the PH domain directly contacts nucleotide-free RAC1 to enhance DOCK5 GEF activity, and ELMO1 is a druggable osteoclast signaling hub.\",\n      \"evidence\": \"3.8-Å cryo-EM of ELMO1-DOCK5-RAC1 with GEF assays; Elmo1 KO in four bone-loss models with proteomic interactome and inhibitory peptide; m6A regulation of ELMO1 in MSCs\",\n      \"pmids\": [\"34290093\", \"34404802\", \"34508078\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Osteoclast interactome partners (cathepsin G, MPO) mechanistically unintegrated with GEF role\", \"m6A regulation single lab, Medium confidence\"]\n    },\n    {\n      \"year\": 2024,\n      \"claim\": \"Integrated RhoG-driven activation and membrane/lipid control, and added post-translational and metabolic regulatory layers governing the activation switch and disease outputs.\",\n      \"evidence\": \"Cryo-EM of DOCK5/ELMO1±RhoG/Rac1 with SPR and GEF assays; K505 acetylation by P300/SIRT2 with Rac readout; ELMO1-SIRT1-p65 senescence axis in colitis KO mice\",\n      \"pmids\": [\"38857861\", \"38750717\", \"38756351\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"How RhoG, phosphorylation, and acetylation inputs are combinatorially integrated unknown\", \"Acetylation and senescence branches from single labs, Medium confidence\"]\n    },\n    {\n      \"year\": 2025,\n      \"claim\": \"Showed that the plasma membrane lipid environment is itself an activating input, with acidic lipids driving a hinge rotation that tunes GEF activity, and extended ELMO1 into mitochondrial metabolic control during infection.\",\n      \"evidence\": \"Cryo-EM on lipid-coated grids with GEF assays and cellular signaling; TMT proteomics and Seahorse with ELMO1 KO macrophages linking ELMO1-DRP1 to TNF-α\",\n      \"pmids\": [\"41233496\", \"41250600\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\"Metabolic/DRP1 branch mechanism Medium confidence, single lab\", \"How lipid-, GTPase-, and PTM-driven conformational changes are coordinated on native membranes unresolved\"]\n    },\n    {\n      \"year\": null,\n      \"claim\": \"It remains unknown how the diverse activating inputs (RhoG, Gβγ/Gαi2, tyrosine phosphorylation, K505 acetylation, FE65/ARF6 trafficking, acidic lipids) are quantitatively integrated to set GEF output in a given cell type, and which E3 ligase ELMO1 antagonizes to stabilize DOCK proteins.\",\n      \"evidence\": \"\",\n      \"pmids\": [],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\"No unified model linking PTMs, GTPase binding, and lipid sensing to graded activation\", \"DOCK-targeting E3 ligase unidentified\", \"Rac1-independent COX-2 and metabolic branches not mechanistically reconciled with the GEF function\"]\n    }\n  ],\n  \"mechanism_profile\": {\n    \"molecular_activity\": [\n      {\"term_id\": \"GO:0060090\", \"supporting_discovery_ids\": [0, 1, 6, 11]},\n      {\"term_id\": \"GO:0098772\", \"supporting_discovery_ids\": [11, 26, 27, 36]},\n      {\"term_id\": \"GO:0005198\", \"supporting_discovery_ids\": [6, 27]}\n    ],\n    \"localization\": [\n      {\"term_id\": \"GO:0005829\", \"supporting_discovery_ids\": [0, 13, 19]},\n      {\"term_id\": \"GO:0005886\", \"supporting_discovery_ids\": [4, 13, 19, 22, 34, 39]},\n      {\"term_id\": \"GO:0031410\", \"supporting_discovery_ids\": [20, 34]}\n    ],\n    \"pathway\": [\n      {\"term_id\": \"R-HSA-162582\", \"supporting_discovery_ids\": [0, 13, 19, 36]},\n      {\"term_id\": \"R-HSA-168256\", \"supporting_discovery_ids\": [12, 17, 20, 23, 35]},\n      {\"term_id\": \"R-HSA-1266738\", \"supporting_discovery_ids\": [9, 10, 33]},\n      {\"term_id\": \"R-HSA-5357801\", \"supporting_discovery_ids\": [8, 16, 31]}\n    ],\n    \"complexes\": [\n      \"ELMO1-DOCK180/DOCK1 bipartite Rac GEF\",\n      \"DOCK2-ELMO1 complex\",\n      \"DOCK5-ELMO1 complex\",\n      \"FE65-ELMO1-DOCK180 tripartite complex\"\n    ],\n    \"partners\": [\n      \"DOCK1\",\n      \"DOCK2\",\n      \"DOCK5\",\n      \"RHOG\",\n      \"RAC1\",\n      \"HCK\",\n      \"GNAI2\",\n      \"FE65\"\n    ],\n    \"other_free_text\": []\n  }\n}","audit_flag":null,"evaluation":{"pairwise":"win","faith_supported":7,"faith_total":7,"faith_pct":100.0}}