{"gene":"TMEM59","run_date":"2026-04-28T21:42:59","timeline":{"discoveries":[{"year":2010,"finding":"TMEM59 is a Golgi-localized type I transmembrane protein that inhibits complex N- and O-glycosylation of APP, causes APP retention in the Golgi, and thereby reduces APP cleavage by alpha- and beta-secretase and Aβ generation. It also inhibits complex N-glycosylation of the prion protein, suggesting a general role in modulating Golgi glycosylation reactions, phenocopying loss of COG1/COG2 function.","method":"Transfection/overexpression, subcellular fractionation, glycosylation assays, secretase activity assays, immunofluorescence localization","journal":"The Journal of biological chemistry","confidence":"High","confidence_rationale":"Tier 2 — multiple orthogonal methods (glycosylation assays, localization, secretase cleavage assays) in single rigorous study","pmids":["20427278"],"is_preprint":false},{"year":2013,"finding":"TMEM59 contains a novel 19-amino-acid peptide motif in its intracellular domain that binds the WD-repeat domain of ATG16L1, promotes LC3 labeling and lysosomal targeting of its own endosomal compartment, and mediates selective autophagy (xenophagy) in response to Staphylococcus aureus infection. Endogenous TMEM59 co-immunoprecipitates with ATG16L1.","method":"Minimal peptide mapping, Co-IP, LC3 labeling assays, lysosomal targeting assays, bacterial infection model, mutagenesis","journal":"The EMBO journal","confidence":"High","confidence_rationale":"Tier 1–2 — motif defined by mutagenesis, Co-IP of endogenous proteins, functional autophagy readout, infection model; highly cited","pmids":["23376921"],"is_preprint":false},{"year":2016,"finding":"The Crohn's disease-associated ATG16L1 T300A polymorphism impairs the ability of the ATG16L1 WD40 domain to interact with the TMEM59 motif, blunting TMEM59-induced unconventional autophagy and disrupting TMEM59's intracellular trafficking and ATG16L1 engagement during bacterial infection, while leaving canonical autophagy unaffected.","method":"ATG16L1 T300A mutagenesis, Co-IP, autophagy flux assays, intracellular trafficking assays, bacterial infection model","journal":"Nature communications","confidence":"High","confidence_rationale":"Tier 2 — reciprocal biochemical and functional validation with defined mutant allele, multiple readouts","pmids":["27273576"],"is_preprint":false},{"year":2018,"finding":"TMEM59 is an interactor of Frizzled (FZD) and LRP6 Wnt receptors identified by mass spectrometry of tagged-Wnt3a pulldowns. TMEM59 acts as a positive regulator of Wnt/β-catenin signaling by promoting intramembrane interactions that drive formation of multimeric Wnt-FZD assemblies, which then merge with LRP6 to form mature Wnt signalosomes.","method":"Internally tagged Wnt3a pulldown, mass spectrometry-based proteomics, Co-IP, signalosome assembly assays, Wnt reporter assays, intramembrane interaction mapping","journal":"Proceedings of the National Academy of Sciences of the United States of America","confidence":"High","confidence_rationale":"Tier 2 — MS-based interactome plus biochemical validation of signalosome assembly and functional reporter assays","pmids":["29632210"],"is_preprint":false},{"year":2020,"finding":"TMEM59 interacts with TREM2 in microglia; TREM2 overexpression promotes proteasomal degradation of TMEM59, whereas TMEM59 levels are elevated in Trem2-deficient microglia. TMEM59 expression facilitates autophagic flux through its carboxyl-terminus, and TMEM59 silencing rescues impaired survival, proliferation, migration, phagocytosis, autophagy, and metabolism in Trem2-deficient microglia.","method":"Co-IP, Western blot, overexpression/knockdown, autophagy flux assays, cell function assays (survival, proliferation, migration, phagocytosis)","journal":"Cell death & disease","confidence":"Medium","confidence_rationale":"Tier 2–3 — Co-IP plus multiple functional rescue experiments in single lab","pmids":["32826884"],"is_preprint":false},{"year":2022,"finding":"TMEM59 in microglia interacts with the C1q receptor CD93; TMEM59 deficiency promotes CD93 protein degradation, impairing synapse engulfment both in vivo and in vitro. Microglia-specific Tmem59 knockout mice develop ASD-like behaviors with enhanced excitatory synaptic transmission and increased dendritic spine density.","method":"Co-IP, microglia-specific conditional KO, in vivo and in vitro synapse engulfment assays, electrophysiology, behavioral testing, synaptosome fractionation","journal":"The Journal of neuroscience","confidence":"High","confidence_rationale":"Tier 2 — reciprocal Co-IP, conditional KO with specific mechanistic readout (CD93 degradation, synapse engulfment), multiple orthogonal methods","pmids":["35606143"],"is_preprint":false},{"year":2021,"finding":"TMEM59 knockout in mice exacerbates cerebral ischemia/reperfusion injury; TMEM59 loss in microglia potentiates microglial activation (Iba-1 elevation), aggravates NLRP3/caspase-1/GSDMD-N pyroptosis, and activates NF-κB signaling. Overexpression of TMEM59 in vitro suppresses pyroptosis and inflammation in OGD/R-treated microglial cells.","method":"MCAO mouse model, TMEM59 KO, in vitro OGD/R, Western blot for pyroptosis markers, NF-κB pathway analysis, overexpression rescue","journal":"Biochemical and biophysical research communications","confidence":"Medium","confidence_rationale":"Tier 2–3 — in vivo KO with pathway-level mechanistic readouts plus in vitro rescue, single lab","pmids":["33517129"],"is_preprint":false},{"year":2025,"finding":"TMEM59 levels increase in AD patient brains and tauopathy model (PS19) mice. TMEM59 interacts with lysosome-associated membrane protein type 2A (LAMP2A) and HSC70, negatively regulating chaperone-mediated autophagy (CMA); TMEM59 deficiency promotes LAMP2A levels and CMA activity, whereas overexpression has the opposite effect. TMEM59 haploinsufficiency attenuates cognitive deficits and tauopathy-related pathologies in PS19 mice.","method":"Co-IP (TMEM59 with LAMP2A and HSC70), biochemical CMA activity assays, LAMP2A quantification, haploinsufficient mouse model, behavioral testing, neuropathological analysis","journal":"Alzheimer's & dementia","confidence":"Medium","confidence_rationale":"Tier 2 — Co-IP of endogenous partners, functional CMA assays, and in vivo disease model; single lab","pmids":["40551290"],"is_preprint":false},{"year":2024,"finding":"TMEM59 interacts with the G-protein coupled receptor GPR161; their interaction mediates inhibition of NF-κB activity and inflammatory cytokine production in LPS-treated bovine mammary alveolar cells.","method":"Co-immunoprecipitation, CRISPR/Cas9-based knockdown and overexpression, Western blot, ELISA for cytokines","journal":"Journal of ethnopharmacology","confidence":"Medium","confidence_rationale":"Tier 2–3 — Co-IP plus CRISPR functional validation, single lab","pmids":["38942158"],"is_preprint":false},{"year":2025,"finding":"HOXA5 transcriptionally activates FTO expression in microglia; FTO-mediated m6A demethylation of TMEM59 mRNA prevents YTHDF2-mediated degradation, thereby stabilizing TMEM59 mRNA and sustaining TMEM59 levels that suppress microglial pyroptosis in cerebral stroke.","method":"MCAO/OGD-R models, MeRIP assay for m6A, dual-luciferase and ChIP for HOXA5-FTO interaction, RIP assay for YTHDF2-TMEM59 mRNA interaction, overexpression/knockdown, flow cytometry for pyroptosis","journal":"FASEB journal","confidence":"Medium","confidence_rationale":"Tier 2 — multiple orthogonal methods (MeRIP, ChIP, RIP, functional assays) establishing post-transcriptional regulatory mechanism; single lab","pmids":["40772328"],"is_preprint":false}],"current_model":"TMEM59 is a Golgi-resident type I transmembrane protein that (1) modulates Golgi glycosylation to regulate APP trafficking and shedding, (2) promotes selective autophagy of endosomes by binding the ATG16L1 WD40 domain via a novel 19-aa intracellular motif, (3) potentiates Wnt signaling by driving FZD-LRP6 signalosome assembly through intramembrane interactions, (4) supports microglial synapse engulfment by stabilizing the C1q receptor CD93, (5) interacts with TREM2 in a reciprocal degradation relationship that tunes microglial homeostasis, and (6) negatively regulates chaperone-mediated autophagy by interacting with LAMP2A and HSC70."},"narrative":{"teleology":[{"year":2010,"claim":"Establishing TMEM59 as a Golgi glycosylation regulator resolved how an uncharacterized transmembrane protein could broadly influence APP processing and Aβ generation by controlling upstream N- and O-glycan maturation rather than secretase activity itself.","evidence":"Overexpression in cell lines with glycosylation assays, subcellular fractionation, and secretase cleavage readouts","pmids":["20427278"],"confidence":"High","gaps":["Endogenous loss-of-function data for glycosylation phenotype not provided","Mechanism by which TMEM59 inhibits COG-dependent glycosylation reactions undefined","Relevance to APP processing in neurons in vivo untested"]},{"year":2013,"claim":"Identification of a 19-amino-acid motif that recruits ATG16L1 via its WD40 domain revealed a non-canonical route for selective autophagy of pathogen-containing endosomes, establishing TMEM59 as a membrane-intrinsic autophagy receptor.","evidence":"Minimal peptide mapping, endogenous Co-IP, LC3 labeling, lysosomal targeting, and S. aureus infection model","pmids":["23376921"],"confidence":"High","gaps":["Whether TMEM59-ATG16L1 interaction is direct or mediated by intermediaries not resolved by Co-IP alone","Structural basis of WD40–motif recognition undetermined"]},{"year":2016,"claim":"Demonstrating that the Crohn's disease ATG16L1 T300A variant specifically impairs the TMEM59–ATG16L1 interaction while sparing canonical autophagy connected a disease-relevant polymorphism to a defined molecular defect in non-canonical (TMEM59-driven) autophagy.","evidence":"ATG16L1 T300A mutagenesis with Co-IP, autophagy flux, and trafficking assays during bacterial infection","pmids":["27273576"],"confidence":"High","gaps":["In vivo demonstration in Crohn's patient-derived cells not shown","Whether other ATG16L1 WD40-binding partners are similarly affected not addressed"]},{"year":2018,"claim":"Discovery of TMEM59 as a FZD/LRP6 interactor that promotes intramembrane Wnt signalosome assembly expanded its functional repertoire beyond autophagy and glycosylation to include signal transduction.","evidence":"Tagged-Wnt3a pulldown with mass spectrometry, Co-IP, Wnt reporter assays, signalosome assembly assays","pmids":["29632210"],"confidence":"High","gaps":["Loss-of-function effect on endogenous Wnt signaling not demonstrated","Tissue contexts where TMEM59-dependent Wnt regulation is physiologically relevant remain unclear"]},{"year":2020,"claim":"Showing that TREM2 promotes proteasomal degradation of TMEM59 and that TMEM59 silencing rescues multiple deficits in Trem2-deficient microglia established a reciprocal regulatory axis linking TMEM59 to microglial homeostasis.","evidence":"Co-IP, overexpression/knockdown, autophagy flux, and functional rescue assays in microglial cells","pmids":["32826884"],"confidence":"Medium","gaps":["Mechanism of TREM2-mediated proteasomal targeting of TMEM59 not defined","In vivo validation of reciprocal regulation not provided","Single-lab finding awaiting independent confirmation"]},{"year":2021,"claim":"TMEM59 knockout in a stroke model revealed an anti-inflammatory, anti-pyroptotic role: loss of TMEM59 potentiates NF-κB activation and NLRP3/GSDMD-N pyroptosis in microglia, positioning TMEM59 as a negative regulator of neuroinflammation.","evidence":"MCAO mouse model with TMEM59 KO, OGD/R in vitro, Western blot for pyroptosis markers, overexpression rescue","pmids":["33517129"],"confidence":"Medium","gaps":["Direct molecular mechanism by which TMEM59 suppresses NF-κB not identified","Findings from a single lab with global KO—cell-type specificity not resolved"]},{"year":2022,"claim":"Microglia-specific conditional knockout demonstrated that TMEM59 stabilizes CD93 protein to promote complement-dependent synapse engulfment in vivo, causally linking TMEM59 deficiency to excess excitatory synapses and ASD-like behaviors.","evidence":"Conditional KO mice, Co-IP, synapse engulfment assays, electrophysiology, behavioral testing","pmids":["35606143"],"confidence":"High","gaps":["Mechanism by which TMEM59 prevents CD93 degradation not elucidated","Whether human TMEM59 variants associate with ASD or synaptic phenotypes unknown"]},{"year":2025,"claim":"Interaction with LAMP2A and HSC70 and negative regulation of chaperone-mediated autophagy (CMA) revealed a second autophagy-regulatory axis for TMEM59, distinct from its ATG16L1-dependent function, with haploinsufficiency attenuating tauopathy in PS19 mice.","evidence":"Co-IP of endogenous partners, CMA activity assays, LAMP2A quantification, haploinsufficient mouse model with behavioral and neuropathological endpoints","pmids":["40551290"],"confidence":"Medium","gaps":["Mechanism of TMEM59 inhibition of LAMP2A multimerization or CMA substrate translocation not defined","Single-lab finding; independent replication needed","Relationship between CMA inhibition and the ATG16L1-dependent autophagy function of TMEM59 not clarified"]},{"year":2025,"claim":"Elucidation of HOXA5→FTO→m6A demethylation as the transcriptional and post-transcriptional circuit sustaining TMEM59 mRNA levels in stroke explained how TMEM59 anti-pyroptotic function is regulated upstream.","evidence":"MCAO/OGD-R, MeRIP for m6A, ChIP for HOXA5-FTO, RIP for YTHDF2-TMEM59 mRNA, functional rescue","pmids":["40772328"],"confidence":"Medium","gaps":["Whether this m6A regulatory circuit operates outside stroke/ischemia contexts unknown","Quantitative contribution of m6A-dependent versus transcription-dependent TMEM59 regulation not dissected"]},{"year":null,"claim":"The structural basis for TMEM59's diverse protein interactions (ATG16L1, LAMP2A, CD93, TREM2, FZD/LRP6) is unknown, and how its glycosylation-modulatory, autophagy-regulatory, and signaling functions are coordinately controlled in different cell types remains an open question.","evidence":"","pmids":[],"confidence":"Low","gaps":["No structural model of TMEM59 or its complexes exists","Integration of TMEM59's dual autophagy roles (ATG16L1-mediated and CMA) is uncharacterized","Physiological relevance of Golgi glycosylation function versus autophagy functions in vivo remains unresolved"]}],"mechanism_profile":{"molecular_activity":[{"term_id":"GO:0098772","term_label":"molecular function regulator activity","supporting_discovery_ids":[0,3,7]},{"term_id":"GO:0060090","term_label":"molecular adaptor activity","supporting_discovery_ids":[1,2,5]}],"localization":[{"term_id":"GO:0005794","term_label":"Golgi apparatus","supporting_discovery_ids":[0]},{"term_id":"GO:0005768","term_label":"endosome","supporting_discovery_ids":[1,2]},{"term_id":"GO:0005764","term_label":"lysosome","supporting_discovery_ids":[7]}],"pathway":[{"term_id":"R-HSA-9612973","term_label":"Autophagy","supporting_discovery_ids":[1,2,4,7]},{"term_id":"R-HSA-162582","term_label":"Signal Transduction","supporting_discovery_ids":[3]},{"term_id":"R-HSA-168256","term_label":"Immune System","supporting_discovery_ids":[5,6]},{"term_id":"R-HSA-392499","term_label":"Metabolism of proteins","supporting_discovery_ids":[0]}],"complexes":[],"partners":["ATG16L1","TREM2","CD93","FZD","LRP6","LAMP2A","HSC70","APP"],"other_free_text":[]},"mechanistic_narrative":"TMEM59 is a Golgi-resident type I transmembrane protein that functions at the intersection of membrane protein glycosylation, selective autophagy, and signal transduction, with particular importance in microglial biology. It modulates Golgi complex glycosylation of client proteins such as APP and the prion protein, thereby controlling their trafficking and proteolytic processing [PMID:20427278], and it promotes selective autophagy of endosomes and bacteria by engaging the WD40 domain of ATG16L1 through a 19-amino-acid intracellular motif—an interaction disrupted by the Crohn's disease-associated ATG16L1 T300A variant [PMID:23376921, PMID:27273576]. In microglia, TMEM59 stabilizes the C1q receptor CD93 to support complement-dependent synapse engulfment, suppresses NLRP3-driven pyroptosis, reciprocally regulates TREM2-dependent homeostatic functions, and negatively controls chaperone-mediated autophagy through interaction with LAMP2A and HSC70 [PMID:35606143, PMID:33517129, PMID:32826884, PMID:40551290]. TMEM59 additionally potentiates Wnt/β-catenin signaling by driving intramembrane assembly of FZD–LRP6 signalosomes [PMID:29632210]."},"prefetch_data":{"uniprot":{"accession":"Q9BXS4","full_name":"Transmembrane protein 59","aliases":["Liver membrane-bound protein"],"length_aa":323,"mass_kda":36.2,"function":"Acts as a regulator of autophagy in response to S.aureus infection by promoting activation of LC3 (MAP1LC3A, MAP1LC3B or MAP1LC3C). Acts by interacting with ATG16L1, leading to promote a functional complex between LC3 and ATG16L1 and promoting LC3 lipidation and subsequent activation of autophagy (PubMed:23376921, PubMed:27273576). Modulates the O-glycosylation and complex N-glycosylation steps occurring during the Golgi maturation of several proteins such as APP, BACE1, SEAP or PRNP (PubMed:20427278). Inhibits APP transport to the cell surface and further shedding (PubMed:20427278)","subcellular_location":"Late endosome membrane; Lysosome membrane; Cell membrane; Golgi apparatus membrane","url":"https://www.uniprot.org/uniprotkb/Q9BXS4/entry"},"depmap":{"release":"DepMap","has_data":true,"is_common_essential":false,"resolved_as":"","url":"https://depmap.org/portal/gene/TMEM59","classification":"Not Classified","n_dependent_lines":0,"n_total_lines":1208,"dependency_fraction":0.0},"opencell":{"profiled":false,"resolved_as":"","ensg_id":"","cell_line_id":"","localizations":[],"interactors":[],"url":"https://opencell.sf.czbiohub.org/search/TMEM59","total_profiled":1310},"omim":[{"mim_id":"617096","title":"TRANSMEMBRANE PROTEIN 59-LIKE; TMEM59L","url":"https://www.omim.org/entry/617096"},{"mim_id":"617084","title":"TRANSMEMBRANE PROTEIN 59; TMEM59","url":"https://www.omim.org/entry/617084"},{"mim_id":"610767","title":"AUTOPHAGY 16-LIKE 1; ATG16L1","url":"https://www.omim.org/entry/610767"}],"hpa":{"profiled":true,"resolved_as":"","reliability":"","locations":[],"tissue_specificity":"Low tissue specificity","tissue_distribution":"Detected in all","driving_tissues":[],"url":"https://www.proteinatlas.org/search/TMEM59"},"hgnc":{"alias_symbol":["HSPC001"],"prev_symbol":["C1orf8"]},"alphafold":{"accession":"Q9BXS4","domains":[{"cath_id":"-","chopping":"40-133","consensus_level":"high","plddt":86.4224,"start":40,"end":133}],"viewer_url":"https://alphafold.ebi.ac.uk/entry/Q9BXS4","model_url":"https://alphafold.ebi.ac.uk/files/AF-Q9BXS4-F1-model_v6.cif","pae_url":"https://alphafold.ebi.ac.uk/files/AF-Q9BXS4-F1-predicted_aligned_error_v6.png","plddt_mean":66.44},"mouse_models":{"mgi_url":"https://www.informatics.jax.org/marker/summary?nomen=TMEM59","jax_strain_url":"https://www.jax.org/strain/search?query=TMEM59"},"sequence":{"accession":"Q9BXS4","fasta_url":"https://rest.uniprot.org/uniprotkb/Q9BXS4.fasta","uniprot_url":"https://www.uniprot.org/uniprotkb/Q9BXS4/entry","alphafold_viewer_url":"https://alphafold.ebi.ac.uk/entry/Q9BXS4"}},"corpus_meta":[{"pmid":"23376921","id":"PMC_23376921","title":"TMEM59 defines a novel ATG16L1-binding motif that promotes local activation of LC3.","date":"2013","source":"The EMBO journal","url":"https://pubmed.ncbi.nlm.nih.gov/23376921","citation_count":96,"is_preprint":false,"source_track":"pubmed_title"},{"pmid":"20427278","id":"PMC_20427278","title":"The novel membrane protein TMEM59 modulates complex glycosylation, cell surface expression, and secretion of the amyloid precursor protein.","date":"2010","source":"The Journal of biological chemistry","url":"https://pubmed.ncbi.nlm.nih.gov/20427278","citation_count":60,"is_preprint":false,"source_track":"pubmed_title"},{"pmid":"35606143","id":"PMC_35606143","title":"Microglial Tmem59 Deficiency Impairs Phagocytosis of Synapse and Leads to Autism-Like Behaviors in Mice.","date":"2022","source":"The Journal of neuroscience : the official journal of the Society for Neuroscience","url":"https://pubmed.ncbi.nlm.nih.gov/35606143","citation_count":47,"is_preprint":false,"source_track":"pubmed_title"},{"pmid":"29632210","id":"PMC_29632210","title":"TMEM59 potentiates Wnt signaling by promoting signalosome formation.","date":"2018","source":"Proceedings of the National Academy of Sciences of the United States of America","url":"https://pubmed.ncbi.nlm.nih.gov/29632210","citation_count":39,"is_preprint":false,"source_track":"pubmed_title"},{"pmid":"32826884","id":"PMC_32826884","title":"TMEM59 interacts with TREM2 and modulates TREM2-dependent microglial activities.","date":"2020","source":"Cell death & disease","url":"https://pubmed.ncbi.nlm.nih.gov/32826884","citation_count":27,"is_preprint":false,"source_track":"pubmed_title"},{"pmid":"33517129","id":"PMC_33517129","title":"TMEM59 protects against cerebral ischemic stroke by suppressing pyroptosis and microglial activation.","date":"2021","source":"Biochemical and biophysical research communications","url":"https://pubmed.ncbi.nlm.nih.gov/33517129","citation_count":15,"is_preprint":false,"source_track":"pubmed_title"},{"pmid":"37061103","id":"PMC_37061103","title":"TMEM59 ablation leads to loss of olfactory sensory neurons and impairs olfactory functions via interaction with inflammation.","date":"2023","source":"Brain, behavior, and immunity","url":"https://pubmed.ncbi.nlm.nih.gov/37061103","citation_count":13,"is_preprint":false,"source_track":"pubmed_title"},{"pmid":"38942158","id":"PMC_38942158","title":"In vivo and in vitro anti-inflammation of Rhapontici Radix extract on mastitis via TMEM59 and GPR161.","date":"2024","source":"Journal of ethnopharmacology","url":"https://pubmed.ncbi.nlm.nih.gov/38942158","citation_count":11,"is_preprint":false,"source_track":"pubmed_title"},{"pmid":"34354426","id":"PMC_34354426","title":"Whole exome sequencing, in silico and functional studies confirm the association of the GJB2 mutation p.Cys169Tyr with deafness and suggest a role for the TMEM59 gene in the hearing process.","date":"2021","source":"Saudi journal of biological sciences","url":"https://pubmed.ncbi.nlm.nih.gov/34354426","citation_count":8,"is_preprint":false,"source_track":"pubmed_title"},{"pmid":"40551290","id":"PMC_40551290","title":"TMEM59 deficiency activates chaperone-mediated autophagy and ameliorates disease-like pathologies in tauopathy model mice.","date":"2025","source":"Alzheimer's & dementia : the journal of the Alzheimer's Association","url":"https://pubmed.ncbi.nlm.nih.gov/40551290","citation_count":2,"is_preprint":false,"source_track":"pubmed_title"},{"pmid":"40772328","id":"PMC_40772328","title":"HOXA5 Inhibits Microglia Pyroptosis in Cerebral Stroke by Regulating FTO-Mediated TMEM59 m6A Demethylation.","date":"2025","source":"FASEB journal : official publication of the Federation of American Societies for Experimental Biology","url":"https://pubmed.ncbi.nlm.nih.gov/40772328","citation_count":0,"is_preprint":false,"source_track":"pubmed_title"},{"pmid":"12477932","id":"PMC_12477932","title":"Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences.","date":"2002","source":"Proceedings of the National Academy of Sciences of the United States of America","url":"https://pubmed.ncbi.nlm.nih.gov/12477932","citation_count":1479,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"26186194","id":"PMC_26186194","title":"The BioPlex Network: A Systematic Exploration of the Human Interactome.","date":"2015","source":"Cell","url":"https://pubmed.ncbi.nlm.nih.gov/26186194","citation_count":1118,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"28514442","id":"PMC_28514442","title":"Architecture of the human interactome defines protein communities and disease networks.","date":"2017","source":"Nature","url":"https://pubmed.ncbi.nlm.nih.gov/28514442","citation_count":1085,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"14702039","id":"PMC_14702039","title":"Complete sequencing and characterization of 21,243 full-length human cDNAs.","date":"2003","source":"Nature genetics","url":"https://pubmed.ncbi.nlm.nih.gov/14702039","citation_count":754,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"33961781","id":"PMC_33961781","title":"Dual proteome-scale networks reveal cell-specific remodeling of the human interactome.","date":"2021","source":"Cell","url":"https://pubmed.ncbi.nlm.nih.gov/33961781","citation_count":705,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"21873635","id":"PMC_21873635","title":"Phylogenetic-based propagation of functional annotations within the Gene Ontology consortium.","date":"2011","source":"Briefings in bioinformatics","url":"https://pubmed.ncbi.nlm.nih.gov/21873635","citation_count":656,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"19056867","id":"PMC_19056867","title":"Large-scale proteomics and phosphoproteomics of urinary exosomes.","date":"2008","source":"Journal of the American Society of Nephrology : JASN","url":"https://pubmed.ncbi.nlm.nih.gov/19056867","citation_count":607,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"8125298","id":"PMC_8125298","title":"Oligo-capping: a simple method to replace the cap structure of eukaryotic mRNAs with oligoribonucleotides.","date":"1994","source":"Gene","url":"https://pubmed.ncbi.nlm.nih.gov/8125298","citation_count":492,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"15489334","id":"PMC_15489334","title":"The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC).","date":"2004","source":"Genome research","url":"https://pubmed.ncbi.nlm.nih.gov/15489334","citation_count":438,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"8889548","id":"PMC_8889548","title":"Normalization and subtraction: two approaches to facilitate gene discovery.","date":"1996","source":"Genome research","url":"https://pubmed.ncbi.nlm.nih.gov/8889548","citation_count":401,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"34079125","id":"PMC_34079125","title":"A proximity-dependent biotinylation map of a human cell.","date":"2021","source":"Nature","url":"https://pubmed.ncbi.nlm.nih.gov/34079125","citation_count":339,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"12975309","id":"PMC_12975309","title":"The secreted protein discovery initiative (SPDI), a large-scale effort to identify novel human secreted and transmembrane proteins: a bioinformatics assessment.","date":"2003","source":"Genome research","url":"https://pubmed.ncbi.nlm.nih.gov/12975309","citation_count":285,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"22451312","id":"PMC_22451312","title":"Genome-wide DNA methylation differences between late-onset Alzheimer's disease and cognitively normal controls in human frontal cortex.","date":"2012","source":"Journal of Alzheimer's disease : JAD","url":"https://pubmed.ncbi.nlm.nih.gov/22451312","citation_count":194,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"11042152","id":"PMC_11042152","title":"Cloning and functional analysis of cDNAs with open reading frames for 300 previously undefined genes expressed in CD34+ hematopoietic stem/progenitor cells.","date":"2000","source":"Genome research","url":"https://pubmed.ncbi.nlm.nih.gov/11042152","citation_count":161,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"30833792","id":"PMC_30833792","title":"A protein-interaction network of interferon-stimulated genes extends the innate immune system landscape.","date":"2019","source":"Nature immunology","url":"https://pubmed.ncbi.nlm.nih.gov/30833792","citation_count":159,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"16710414","id":"PMC_16710414","title":"The DNA sequence and biological annotation of human chromosome 1.","date":"2006","source":"Nature","url":"https://pubmed.ncbi.nlm.nih.gov/16710414","citation_count":144,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"19322201","id":"PMC_19322201","title":"Ubiquitin-mediated proteolysis of HuR by heat shock.","date":"2009","source":"The EMBO journal","url":"https://pubmed.ncbi.nlm.nih.gov/19322201","citation_count":142,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"31871319","id":"PMC_31871319","title":"Mapping the proximity interaction network of the Rho-family GTPases reveals signalling pathways and regulatory mechanisms.","date":"2019","source":"Nature cell biology","url":"https://pubmed.ncbi.nlm.nih.gov/31871319","citation_count":137,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"9653160","id":"PMC_9653160","title":"Identification of genes expressed in human CD34(+) hematopoietic stem/progenitor cells by expressed sequence tags and efficient full-length cDNA cloning.","date":"1998","source":"Proceedings of the National Academy of Sciences of the United States of America","url":"https://pubmed.ncbi.nlm.nih.gov/9653160","citation_count":119,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"20379614","id":"PMC_20379614","title":"Personalized smoking cessation: interactions between nicotine dose, dependence and quit-success genotype score.","date":"2010","source":"Molecular medicine (Cambridge, Mass.)","url":"https://pubmed.ncbi.nlm.nih.gov/20379614","citation_count":108,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"33545068","id":"PMC_33545068","title":"Systematically defining selective autophagy receptor-specific cargo using autophagosome content profiling.","date":"2021","source":"Molecular cell","url":"https://pubmed.ncbi.nlm.nih.gov/33545068","citation_count":105,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"20351267","id":"PMC_20351267","title":"Mig-6 controls EGFR trafficking and suppresses gliomagenesis.","date":"2010","source":"Proceedings of the National Academy of Sciences of the United States of America","url":"https://pubmed.ncbi.nlm.nih.gov/20351267","citation_count":99,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"28692057","id":"PMC_28692057","title":"The interactome of metabolic enzyme carbonic anhydrase IX reveals novel roles in tumor cell migration and invadopodia/MMP14-mediated invasion.","date":"2017","source":"Oncogene","url":"https://pubmed.ncbi.nlm.nih.gov/28692057","citation_count":96,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"35338135","id":"PMC_35338135","title":"CRISPR activation screen identifies BCL-2 proteins and B3GNT2 as drivers of cancer resistance to T cell-mediated cytotoxicity.","date":"2022","source":"Nature communications","url":"https://pubmed.ncbi.nlm.nih.gov/35338135","citation_count":93,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"32707033","id":"PMC_32707033","title":"Kinase Interaction Network Expands Functional and Disease Roles of Human Kinases.","date":"2020","source":"Molecular cell","url":"https://pubmed.ncbi.nlm.nih.gov/32707033","citation_count":88,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"34709727","id":"PMC_34709727","title":"SARS-CoV-2-host proteome interactions for antiviral drug discovery.","date":"2021","source":"Molecular systems biology","url":"https://pubmed.ncbi.nlm.nih.gov/34709727","citation_count":86,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"21875946","id":"PMC_21875946","title":"Mindbomb 1, an E3 ubiquitin ligase, forms a complex with RYK to activate Wnt/β-catenin signaling.","date":"2011","source":"The Journal of cell biology","url":"https://pubmed.ncbi.nlm.nih.gov/21875946","citation_count":85,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"33957083","id":"PMC_33957083","title":"Comprehensive interactome profiling of the human Hsp70 network highlights functional differentiation of J domains.","date":"2021","source":"Molecular cell","url":"https://pubmed.ncbi.nlm.nih.gov/33957083","citation_count":64,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"25921289","id":"PMC_25921289","title":"Temporal proteomics of NGF-TrkA signaling identifies an inhibitory role for the E3 ligase Cbl-b in neuroblastoma cell differentiation.","date":"2015","source":"Science signaling","url":"https://pubmed.ncbi.nlm.nih.gov/25921289","citation_count":61,"is_preprint":false,"source_track":"gene2pubmed"},{"pmid":"27273576","id":"PMC_27273576","title":"The T300A Crohn's disease risk polymorphism impairs function of the WD40 domain of ATG16L1.","date":"2016","source":"Nature communications","url":"https://pubmed.ncbi.nlm.nih.gov/27273576","citation_count":60,"is_preprint":false,"source_track":"gene2pubmed"}],"cost":{"stage1":{"model":"claude-sonnet-4-6","input_tokens":7518,"output_tokens":2358,"usd":0.028962},"stage2":{"model":"claude-opus-4-6","input_tokens":5667,"output_tokens":2700,"usd":0.143753},"total_usd":0.377978,"stage1_batch_id":"msgbatch_01RPbVc9PDH9zQmYK5Hs6srm","stage2_batch_id":"msgbatch_01JVbVLzeKN2yVrsGp3zC8aM","note":"batch pricing = 50% of standard","round2_stage1":{"model":"claude-sonnet-4-6","input_tokens":20482,"output_tokens":2786,"usd":0.051618},"round2_rules_fired":"R3","round2_stage2":{"model":"claude-opus-4-6","input_tokens":6356,"output_tokens":2826,"usd":0.153645}},"stage1_raw":"```json\n{\n  \"discoveries\": [\n    {\n      \"year\": 2013,\n      \"finding\": \"TMEM59 contains a minimal 19-amino-acid peptide in its intracellular domain that directly interacts with the WD-repeat domain of ATG16L1, promoting LC3 labelling and lysosomal targeting of its own endosomal compartment. Endogenous TMEM59 interacts with ATG16L1 and mediates autophagy in response to Staphylococcus aureus infection.\",\n      \"method\": \"Co-immunoprecipitation, peptide mapping, mutational analysis, LC3 labelling assay, lysosomal targeting assay, infection model\",\n      \"journal\": \"The EMBO journal\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — multiple orthogonal methods (Co-IP, mutagenesis, functional assays) in a well-cited study\",\n      \"pmids\": [\"23376921\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2010,\n      \"finding\": \"TMEM59 is a Golgi-localized transmembrane protein that inhibits complex N- and O-glycosylation of APP and retains APP in the Golgi, thereby reducing APP shedding by alpha- and beta-secretase and inhibiting Abeta generation. TMEM59 also inhibits complex N-glycosylation of prion protein, indicating a general role in modulating Golgi glycosylation reactions.\",\n      \"method\": \"Transfection/overexpression, glycosylation assays, secretase cleavage assays, subcellular fractionation/localization, comparison with COG1/COG2 knockout cells\",\n      \"journal\": \"The Journal of biological chemistry\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — multiple orthogonal methods (glycosylation assays, shedding assays, localization) with rigorous controls in a well-cited study\",\n      \"pmids\": [\"20427278\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2018,\n      \"finding\": \"TMEM59 interacts with Frizzled (FZD) and LRP6 Wnt receptors and promotes formation of multimeric Wnt-FZD assemblies via intramembrane interactions; these clusters then merge with LRP6 to form mature Wnt signalosomes, positively regulating Wnt/β-catenin signaling.\",\n      \"method\": \"Mass spectrometry-based proteomics of endogenous Wnt receptor complexes isolated with internally tagged Wnt3a, Co-IP, signaling reporter assays\",\n      \"journal\": \"Proceedings of the National Academy of Sciences of the United States of America\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — reciprocal Co-IP, MS-based interactome, functional signaling assays with mechanistic pathway placement\",\n      \"pmids\": [\"29632210\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2020,\n      \"finding\": \"TMEM59 interacts with TREM2 in microglia; TREM2 overexpression promotes TMEM59 protein degradation, while TMEM59 deficiency attenuates impaired survival, proliferation, migration, phagocytosis, autophagy, and metabolism seen in Trem2-deficient microglia. TMEM59 carboxyl-terminus facilitates autophagic flux.\",\n      \"method\": \"Co-immunoprecipitation, overexpression/knockdown, cell viability/migration/phagocytosis assays, autophagic flux assay\",\n      \"journal\": \"Cell death & disease\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 — Co-IP with functional epistasis, single lab\",\n      \"pmids\": [\"32826884\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2022,\n      \"finding\": \"TMEM59 interacts with the C1q receptor CD93 in microglia and stabilizes CD93 protein; TMEM59 deficiency promotes CD93 protein degradation, impairing microglial synapse engulfment (phagocytosis), leading to increased excitatory synaptic transmission and dendritic spine density.\",\n      \"method\": \"Co-immunoprecipitation, microglia-specific and complete Tmem59 knockout mice, in vivo and in vitro synapse engulfment assays, electrophysiology, synaptosome fractionation\",\n      \"journal\": \"The Journal of neuroscience\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — reciprocal Co-IP, conditional KO with specific cellular phenotype, multiple orthogonal assays\",\n      \"pmids\": [\"35606143\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2021,\n      \"finding\": \"TMEM59 deficiency in mice subjected to cerebral ischemia/reperfusion aggravates NLRP3 inflammasome-dependent pyroptosis (increased NLRP3, ASC, cleaved Caspase-1, GSDMD-N, mature IL-1β, IL-18) and activates NF-κB signaling in microglia, worsening stroke outcomes.\",\n      \"method\": \"TMEM59 knockout mice, MCAO model, OGD/R in vitro model, Western blotting for pyroptosis markers, NF-κB pathway analysis\",\n      \"journal\": \"Biochemical and biophysical research communications\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 — clean KO with defined cellular phenotype (pyroptosis) and pathway placement, single lab\",\n      \"pmids\": [\"33517129\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2025,\n      \"finding\": \"TMEM59 interacts with lysosome-associated membrane protein type 2A (LAMP2A) and heat-shock cognate 71 kDa protein (HSC70), negatively regulating chaperone-mediated autophagy (CMA); TMEM59 deficiency increases LAMP2A levels and CMA activity, while TMEM59 overexpression has the opposite effect.\",\n      \"method\": \"Co-immunoprecipitation, overexpression/haploinsufficiency in tauopathy model mice (PS19), biochemical analysis of LAMP2A levels and CMA activity\",\n      \"journal\": \"Alzheimer's & dementia\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 — Co-IP with functional CMA assay, single lab, moderate evidence\",\n      \"pmids\": [\"40551290\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2025,\n      \"finding\": \"HOXA5 transcriptionally activates FTO expression, which in turn demethylates TMEM59 mRNA m6A modifications, preventing YTHDF2-mediated TMEM59 mRNA degradation and thereby maintaining TMEM59 levels that suppress microglial pyroptosis in cerebral stroke.\",\n      \"method\": \"MeRIP assay for m6A, dual luciferase reporter and ChIP assay for HOXA5-FTO interaction, RIP assay for YTHDF2-TMEM59 mRNA interaction, MCAO/OGD-R models, MTT and flow cytometry for pyroptosis\",\n      \"journal\": \"FASEB journal\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 — multiple orthogonal methods (MeRIP, ChIP, RIP, luciferase), single lab\",\n      \"pmids\": [\"40772328\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2024,\n      \"finding\": \"TMEM59 interacts with GPR161; this interaction mediates inhibition of NF-κB activity and inflammatory cytokine production in mammary epithelial cells.\",\n      \"method\": \"Co-immunoprecipitation, CRISPR/Cas9-based knockdown and overexpression, ELISA, Western blotting, RNA-seq and tandem mass tag proteomics\",\n      \"journal\": \"Journal of ethnopharmacology\",\n      \"confidence\": \"Low\",\n      \"confidence_rationale\": \"Tier 3 — Co-IP confirmed interaction but mechanistic detail is limited; context is bovine mammary cells\",\n      \"pmids\": [\"38942158\"],\n      \"is_preprint\": false\n    }\n  ],\n  \"current_model\": \"TMEM59 is a type I transmembrane protein that functions at multiple membrane compartments: in the Golgi it modulates complex glycosylation to regulate trafficking and shedding of APP and other substrates; on endosomes it recruits ATG16L1 via a defined WD-repeat-binding motif to promote selective autophagy (xenophagy); at the plasma membrane it facilitates Wnt signalosome assembly by promoting intramembrane clustering of FZD and LRP6; in microglia it stabilizes the C1q receptor CD93 to enable synaptic pruning, interacts with TREM2 to maintain microglial homeostasis, and suppresses pyroptosis partly through the NF-κB pathway; and at lysosomes it interacts with LAMP2A/HSC70 to negatively regulate chaperone-mediated autophagy.\"\n}\n```\n\n--- ROUND 2 (R2/R3, augmented corpus) ---\n\n```json\n{\n  \"discoveries\": [\n    {\n      \"year\": 2010,\n      \"finding\": \"TMEM59 is a Golgi-localized type I transmembrane protein that inhibits complex N- and O-glycosylation of APP, causes APP retention in the Golgi, and thereby reduces APP cleavage by alpha- and beta-secretase and Aβ generation. It also inhibits complex N-glycosylation of the prion protein, suggesting a general role in modulating Golgi glycosylation reactions, phenocopying loss of COG1/COG2 function.\",\n      \"method\": \"Transfection/overexpression, subcellular fractionation, glycosylation assays, secretase activity assays, immunofluorescence localization\",\n      \"journal\": \"The Journal of biological chemistry\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — multiple orthogonal methods (glycosylation assays, localization, secretase cleavage assays) in single rigorous study\",\n      \"pmids\": [\"20427278\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2013,\n      \"finding\": \"TMEM59 contains a novel 19-amino-acid peptide motif in its intracellular domain that binds the WD-repeat domain of ATG16L1, promotes LC3 labeling and lysosomal targeting of its own endosomal compartment, and mediates selective autophagy (xenophagy) in response to Staphylococcus aureus infection. Endogenous TMEM59 co-immunoprecipitates with ATG16L1.\",\n      \"method\": \"Minimal peptide mapping, Co-IP, LC3 labeling assays, lysosomal targeting assays, bacterial infection model, mutagenesis\",\n      \"journal\": \"The EMBO journal\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 1–2 — motif defined by mutagenesis, Co-IP of endogenous proteins, functional autophagy readout, infection model; highly cited\",\n      \"pmids\": [\"23376921\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2016,\n      \"finding\": \"The Crohn's disease-associated ATG16L1 T300A polymorphism impairs the ability of the ATG16L1 WD40 domain to interact with the TMEM59 motif, blunting TMEM59-induced unconventional autophagy and disrupting TMEM59's intracellular trafficking and ATG16L1 engagement during bacterial infection, while leaving canonical autophagy unaffected.\",\n      \"method\": \"ATG16L1 T300A mutagenesis, Co-IP, autophagy flux assays, intracellular trafficking assays, bacterial infection model\",\n      \"journal\": \"Nature communications\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — reciprocal biochemical and functional validation with defined mutant allele, multiple readouts\",\n      \"pmids\": [\"27273576\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2018,\n      \"finding\": \"TMEM59 is an interactor of Frizzled (FZD) and LRP6 Wnt receptors identified by mass spectrometry of tagged-Wnt3a pulldowns. TMEM59 acts as a positive regulator of Wnt/β-catenin signaling by promoting intramembrane interactions that drive formation of multimeric Wnt-FZD assemblies, which then merge with LRP6 to form mature Wnt signalosomes.\",\n      \"method\": \"Internally tagged Wnt3a pulldown, mass spectrometry-based proteomics, Co-IP, signalosome assembly assays, Wnt reporter assays, intramembrane interaction mapping\",\n      \"journal\": \"Proceedings of the National Academy of Sciences of the United States of America\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — MS-based interactome plus biochemical validation of signalosome assembly and functional reporter assays\",\n      \"pmids\": [\"29632210\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2020,\n      \"finding\": \"TMEM59 interacts with TREM2 in microglia; TREM2 overexpression promotes proteasomal degradation of TMEM59, whereas TMEM59 levels are elevated in Trem2-deficient microglia. TMEM59 expression facilitates autophagic flux through its carboxyl-terminus, and TMEM59 silencing rescues impaired survival, proliferation, migration, phagocytosis, autophagy, and metabolism in Trem2-deficient microglia.\",\n      \"method\": \"Co-IP, Western blot, overexpression/knockdown, autophagy flux assays, cell function assays (survival, proliferation, migration, phagocytosis)\",\n      \"journal\": \"Cell death & disease\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2–3 — Co-IP plus multiple functional rescue experiments in single lab\",\n      \"pmids\": [\"32826884\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2022,\n      \"finding\": \"TMEM59 in microglia interacts with the C1q receptor CD93; TMEM59 deficiency promotes CD93 protein degradation, impairing synapse engulfment both in vivo and in vitro. Microglia-specific Tmem59 knockout mice develop ASD-like behaviors with enhanced excitatory synaptic transmission and increased dendritic spine density.\",\n      \"method\": \"Co-IP, microglia-specific conditional KO, in vivo and in vitro synapse engulfment assays, electrophysiology, behavioral testing, synaptosome fractionation\",\n      \"journal\": \"The Journal of neuroscience\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 — reciprocal Co-IP, conditional KO with specific mechanistic readout (CD93 degradation, synapse engulfment), multiple orthogonal methods\",\n      \"pmids\": [\"35606143\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2021,\n      \"finding\": \"TMEM59 knockout in mice exacerbates cerebral ischemia/reperfusion injury; TMEM59 loss in microglia potentiates microglial activation (Iba-1 elevation), aggravates NLRP3/caspase-1/GSDMD-N pyroptosis, and activates NF-κB signaling. Overexpression of TMEM59 in vitro suppresses pyroptosis and inflammation in OGD/R-treated microglial cells.\",\n      \"method\": \"MCAO mouse model, TMEM59 KO, in vitro OGD/R, Western blot for pyroptosis markers, NF-κB pathway analysis, overexpression rescue\",\n      \"journal\": \"Biochemical and biophysical research communications\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2–3 — in vivo KO with pathway-level mechanistic readouts plus in vitro rescue, single lab\",\n      \"pmids\": [\"33517129\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2025,\n      \"finding\": \"TMEM59 levels increase in AD patient brains and tauopathy model (PS19) mice. TMEM59 interacts with lysosome-associated membrane protein type 2A (LAMP2A) and HSC70, negatively regulating chaperone-mediated autophagy (CMA); TMEM59 deficiency promotes LAMP2A levels and CMA activity, whereas overexpression has the opposite effect. TMEM59 haploinsufficiency attenuates cognitive deficits and tauopathy-related pathologies in PS19 mice.\",\n      \"method\": \"Co-IP (TMEM59 with LAMP2A and HSC70), biochemical CMA activity assays, LAMP2A quantification, haploinsufficient mouse model, behavioral testing, neuropathological analysis\",\n      \"journal\": \"Alzheimer's & dementia\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 — Co-IP of endogenous partners, functional CMA assays, and in vivo disease model; single lab\",\n      \"pmids\": [\"40551290\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2024,\n      \"finding\": \"TMEM59 interacts with the G-protein coupled receptor GPR161; their interaction mediates inhibition of NF-κB activity and inflammatory cytokine production in LPS-treated bovine mammary alveolar cells.\",\n      \"method\": \"Co-immunoprecipitation, CRISPR/Cas9-based knockdown and overexpression, Western blot, ELISA for cytokines\",\n      \"journal\": \"Journal of ethnopharmacology\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2–3 — Co-IP plus CRISPR functional validation, single lab\",\n      \"pmids\": [\"38942158\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2025,\n      \"finding\": \"HOXA5 transcriptionally activates FTO expression in microglia; FTO-mediated m6A demethylation of TMEM59 mRNA prevents YTHDF2-mediated degradation, thereby stabilizing TMEM59 mRNA and sustaining TMEM59 levels that suppress microglial pyroptosis in cerebral stroke.\",\n      \"method\": \"MCAO/OGD-R models, MeRIP assay for m6A, dual-luciferase and ChIP for HOXA5-FTO interaction, RIP assay for YTHDF2-TMEM59 mRNA interaction, overexpression/knockdown, flow cytometry for pyroptosis\",\n      \"journal\": \"FASEB journal\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2 — multiple orthogonal methods (MeRIP, ChIP, RIP, functional assays) establishing post-transcriptional regulatory mechanism; single lab\",\n      \"pmids\": [\"40772328\"],\n      \"is_preprint\": false\n    }\n  ],\n  \"current_model\": \"TMEM59 is a Golgi-resident type I transmembrane protein that (1) modulates Golgi glycosylation to regulate APP trafficking and shedding, (2) promotes selective autophagy of endosomes by binding the ATG16L1 WD40 domain via a novel 19-aa intracellular motif, (3) potentiates Wnt signaling by driving FZD-LRP6 signalosome assembly through intramembrane interactions, (4) supports microglial synapse engulfment by stabilizing the C1q receptor CD93, (5) interacts with TREM2 in a reciprocal degradation relationship that tunes microglial homeostasis, and (6) negatively regulates chaperone-mediated autophagy by interacting with LAMP2A and HSC70.\"\n}\n```","stage2_raw":"```json\n{\n  \"mechanistic_narrative\": \"TMEM59 is a type I transmembrane protein that operates across multiple membrane compartments to regulate glycosylation, autophagy, Wnt signaling, and microglial immune functions. In the Golgi, TMEM59 inhibits complex N- and O-glycosylation of APP and prion protein, thereby retaining APP in the Golgi and reducing secretase-mediated shedding and Aβ generation [PMID:20427278]. Its intracellular domain contains a 19-amino-acid motif that directly engages the WD-repeat domain of ATG16L1, promoting LC3 conjugation on endosomes and driving selective autophagy of intracellular Staphylococcus aureus [PMID:23376921]; at lysosomes, TMEM59 interacts with LAMP2A and HSC70 to negatively regulate chaperone-mediated autophagy [PMID:40551290]. In microglia, TMEM59 stabilizes the C1q receptor CD93 to enable complement-dependent synaptic pruning [PMID:35606143], interacts with TREM2 to maintain microglial homeostatic functions including phagocytosis and survival [PMID:32826884], suppresses NLRP3 inflammasome-driven pyroptosis through restraint of NF-κB signaling [PMID:33517129], and at the plasma membrane facilitates Wnt signalosome assembly by promoting intramembrane clustering of Frizzled and LRP6 receptors [PMID:29632210].\",\n  \"teleology\": [\n    {\n      \"year\": 2010,\n      \"claim\": \"TMEM59 was identified as a Golgi-resident glycosylation modulator, establishing that the protein broadly inhibits complex N- and O-glycosylation and thereby controls APP trafficking and secretase-mediated processing—providing its first defined molecular function.\",\n      \"evidence\": \"Overexpression/glycosylation assays, secretase cleavage assays, and Golgi localization in HEK293 cells compared with COG1/COG2 knockout controls\",\n      \"pmids\": [\"20427278\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\n        \"Mechanism by which TMEM59 inhibits Golgi glycosyltransferases is unknown\",\n        \"Whether endogenous TMEM59 levels limit APP glycosylation in vivo was not tested\",\n        \"Impact of TMEM59 loss of function on glycosylation was not assessed\"\n      ]\n    },\n    {\n      \"year\": 2013,\n      \"claim\": \"Mapping of a 19-amino-acid ATG16L1-binding motif in the TMEM59 cytoplasmic tail revealed how a single-pass transmembrane protein can directly recruit the autophagy machinery to endosomes, establishing TMEM59 as a selective autophagy receptor during bacterial infection.\",\n      \"evidence\": \"Peptide mapping, mutagenesis, Co-IP of endogenous TMEM59–ATG16L1, LC3 labelling, and Staphylococcus aureus infection model\",\n      \"pmids\": [\"23376921\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\n        \"Whether TMEM59-driven autophagy extends to other intracellular pathogens was not determined\",\n        \"Structural basis of the TMEM59–ATG16L1 WD-repeat interaction is unresolved\",\n        \"Relationship between the Golgi glycosylation function and the autophagy function remains unclear\"\n      ]\n    },\n    {\n      \"year\": 2018,\n      \"claim\": \"Discovery that TMEM59 promotes intramembrane clustering of Frizzled and LRP6 into mature Wnt signalosomes expanded the protein's functional repertoire to signal transduction at the plasma membrane.\",\n      \"evidence\": \"Mass spectrometry of endogenous Wnt receptor complexes isolated with internally tagged Wnt3a, reciprocal Co-IP, and Wnt/β-catenin reporter assays\",\n      \"pmids\": [\"29632210\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\n        \"Whether TMEM59 transmembrane domain directly mediates FZD clustering or acts indirectly is unknown\",\n        \"Contribution of TMEM59 to Wnt signaling in vivo has not been tested\"\n      ]\n    },\n    {\n      \"year\": 2020,\n      \"claim\": \"Identification of a TMEM59–TREM2 interaction in microglia linked TMEM59 to microglial homeostasis, showing that the two proteins engage in reciprocal regulation of survival, phagocytosis, and autophagic flux.\",\n      \"evidence\": \"Co-IP, overexpression/knockdown epistasis, viability/migration/phagocytosis assays in microglial cells\",\n      \"pmids\": [\"32826884\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\n        \"Whether the interaction is direct or bridged by an intermediate has not been resolved\",\n        \"In vivo relevance of TMEM59–TREM2 axis in neurodegeneration is untested\",\n        \"The domain(s) of TMEM59 required for TREM2 binding are unmapped\"\n      ]\n    },\n    {\n      \"year\": 2021,\n      \"claim\": \"Demonstrating that TMEM59 deficiency exacerbates NLRP3 inflammasome-dependent pyroptosis and NF-κB activation during cerebral ischemia established TMEM59 as an anti-inflammatory brake in microglia.\",\n      \"evidence\": \"TMEM59 knockout mice in MCAO stroke model and OGD/R in vitro, Western blot for pyroptosis markers and NF-κB pathway components\",\n      \"pmids\": [\"33517129\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\n        \"Direct molecular mechanism by which TMEM59 suppresses NF-κB is uncharacterized\",\n        \"Whether TMEM59 anti-pyroptotic function is cell-autonomous to microglia was not resolved\"\n      ]\n    },\n    {\n      \"year\": 2022,\n      \"claim\": \"Showing that TMEM59 stabilizes the C1q receptor CD93 and is required for microglial synapse engulfment in vivo connected the gene to complement-mediated synaptic pruning during brain development.\",\n      \"evidence\": \"Reciprocal Co-IP, microglia-specific and global Tmem59 knockout mice, synapse engulfment assays, electrophysiology, spine density analysis\",\n      \"pmids\": [\"35606143\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\n        \"How TMEM59 protects CD93 from degradation at the molecular level is unknown\",\n        \"Whether TMEM59–CD93 interaction is relevant outside developmental pruning (e.g., in neurodegeneration) is untested\"\n      ]\n    },\n    {\n      \"year\": 2025,\n      \"claim\": \"Identification of TMEM59 interactions with LAMP2A and HSC70, and demonstration that TMEM59 levels inversely regulate chaperone-mediated autophagy, revealed a new lysosomal function with implications for tauopathy.\",\n      \"evidence\": \"Co-IP, TMEM59 overexpression/haploinsufficiency in PS19 tauopathy model mice, LAMP2A level and CMA activity measurements\",\n      \"pmids\": [\"40551290\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\n        \"Mechanism by which TMEM59 suppresses CMA (e.g., LAMP2A destabilization vs. translocation blockade) is undefined\",\n        \"Not independently confirmed by a second laboratory\",\n        \"Whether CMA regulation is linked to the ATG16L1-dependent macroautophagy function is unknown\"\n      ]\n    },\n    {\n      \"year\": 2025,\n      \"claim\": \"Elucidation of an FTO-mediated m6A demethylation axis that stabilizes TMEM59 mRNA and sustains the anti-pyroptotic function established post-transcriptional regulation of TMEM59 in cerebral ischemia.\",\n      \"evidence\": \"MeRIP, ChIP, RIP assays, luciferase reporters, MCAO/OGD-R models, pyroptosis readouts\",\n      \"pmids\": [\"40772328\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\n        \"Whether this epitranscriptomic regulation operates in non-ischemic or non-microglial contexts is unknown\",\n        \"Single-lab finding without independent replication\"\n      ]\n    },\n    {\n      \"year\": null,\n      \"claim\": \"A unifying structural and mechanistic model explaining how a single transmembrane protein simultaneously regulates Golgi glycosylation, selective autophagy, Wnt signaling, CMA, and microglial immune functions across distinct compartments remains to be constructed.\",\n      \"evidence\": \"\",\n      \"pmids\": [],\n      \"confidence\": \"Low\",\n      \"gaps\": [\n        \"No high-resolution structure of TMEM59 or any of its complexes exists\",\n        \"Whether distinct functions are executed by the same or separate pools of TMEM59 is unknown\",\n        \"In vivo phenotyping of TMEM59 knockout beyond brain (e.g., immune, developmental contexts) is sparse\"\n      ]\n    }\n  ],\n  \"mechanism_profile\": {\n    \"molecular_activity\": [\n      {\"term_id\": \"GO:0060090\", \"supporting_discovery_ids\": [0, 2, 4]},\n      {\"term_id\": \"GO:0098772\", \"supporting_discovery_ids\": [1, 5, 6]}\n    ],\n    \"localization\": [\n      {\"term_id\": \"GO:0005794\", \"supporting_discovery_ids\": [1]},\n      {\"term_id\": \"GO:0005768\", \"supporting_discovery_ids\": [0]},\n      {\"term_id\": \"GO:0005886\", \"supporting_discovery_ids\": [2, 4]},\n      {\"term_id\": \"GO:0005764\", \"supporting_discovery_ids\": [6]}\n    ],\n    \"pathway\": [\n      {\"term_id\": \"R-HSA-9612973\", \"supporting_discovery_ids\": [0, 3, 6]},\n      {\"term_id\": \"R-HSA-162582\", \"supporting_discovery_ids\": [2, 5]},\n      {\"term_id\": \"R-HSA-168256\", \"supporting_discovery_ids\": [4, 5]}\n    ],\n    \"complexes\": [],\n    \"partners\": [\n      \"ATG16L1\",\n      \"TREM2\",\n      \"CD93\",\n      \"FZD\",\n      \"LRP6\",\n      \"LAMP2A\",\n      \"HSC70\"\n    ],\n    \"other_free_text\": []\n  }\n}\n```\n\n--- ROUND 2 (R2/R3, augmented corpus) ---\n\n```json\n{\n  \"mechanistic_narrative\": \"TMEM59 is a Golgi-resident type I transmembrane protein that functions at the intersection of membrane protein glycosylation, selective autophagy, and signal transduction, with particular importance in microglial biology. It modulates Golgi complex glycosylation of client proteins such as APP and the prion protein, thereby controlling their trafficking and proteolytic processing [PMID:20427278], and it promotes selective autophagy of endosomes and bacteria by engaging the WD40 domain of ATG16L1 through a 19-amino-acid intracellular motif—an interaction disrupted by the Crohn's disease-associated ATG16L1 T300A variant [PMID:23376921, PMID:27273576]. In microglia, TMEM59 stabilizes the C1q receptor CD93 to support complement-dependent synapse engulfment, suppresses NLRP3-driven pyroptosis, reciprocally regulates TREM2-dependent homeostatic functions, and negatively controls chaperone-mediated autophagy through interaction with LAMP2A and HSC70 [PMID:35606143, PMID:33517129, PMID:32826884, PMID:40551290]. TMEM59 additionally potentiates Wnt/β-catenin signaling by driving intramembrane assembly of FZD–LRP6 signalosomes [PMID:29632210].\",\n  \"teleology\": [\n    {\n      \"year\": 2010,\n      \"claim\": \"Establishing TMEM59 as a Golgi glycosylation regulator resolved how an uncharacterized transmembrane protein could broadly influence APP processing and Aβ generation by controlling upstream N- and O-glycan maturation rather than secretase activity itself.\",\n      \"evidence\": \"Overexpression in cell lines with glycosylation assays, subcellular fractionation, and secretase cleavage readouts\",\n      \"pmids\": [\"20427278\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\n        \"Endogenous loss-of-function data for glycosylation phenotype not provided\",\n        \"Mechanism by which TMEM59 inhibits COG-dependent glycosylation reactions undefined\",\n        \"Relevance to APP processing in neurons in vivo untested\"\n      ]\n    },\n    {\n      \"year\": 2013,\n      \"claim\": \"Identification of a 19-amino-acid motif that recruits ATG16L1 via its WD40 domain revealed a non-canonical route for selective autophagy of pathogen-containing endosomes, establishing TMEM59 as a membrane-intrinsic autophagy receptor.\",\n      \"evidence\": \"Minimal peptide mapping, endogenous Co-IP, LC3 labeling, lysosomal targeting, and S. aureus infection model\",\n      \"pmids\": [\"23376921\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\n        \"Whether TMEM59-ATG16L1 interaction is direct or mediated by intermediaries not resolved by Co-IP alone\",\n        \"Structural basis of WD40–motif recognition undetermined\"\n      ]\n    },\n    {\n      \"year\": 2016,\n      \"claim\": \"Demonstrating that the Crohn's disease ATG16L1 T300A variant specifically impairs the TMEM59–ATG16L1 interaction while sparing canonical autophagy connected a disease-relevant polymorphism to a defined molecular defect in non-canonical (TMEM59-driven) autophagy.\",\n      \"evidence\": \"ATG16L1 T300A mutagenesis with Co-IP, autophagy flux, and trafficking assays during bacterial infection\",\n      \"pmids\": [\"27273576\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\n        \"In vivo demonstration in Crohn's patient-derived cells not shown\",\n        \"Whether other ATG16L1 WD40-binding partners are similarly affected not addressed\"\n      ]\n    },\n    {\n      \"year\": 2018,\n      \"claim\": \"Discovery of TMEM59 as a FZD/LRP6 interactor that promotes intramembrane Wnt signalosome assembly expanded its functional repertoire beyond autophagy and glycosylation to include signal transduction.\",\n      \"evidence\": \"Tagged-Wnt3a pulldown with mass spectrometry, Co-IP, Wnt reporter assays, signalosome assembly assays\",\n      \"pmids\": [\"29632210\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\n        \"Loss-of-function effect on endogenous Wnt signaling not demonstrated\",\n        \"Tissue contexts where TMEM59-dependent Wnt regulation is physiologically relevant remain unclear\"\n      ]\n    },\n    {\n      \"year\": 2020,\n      \"claim\": \"Showing that TREM2 promotes proteasomal degradation of TMEM59 and that TMEM59 silencing rescues multiple deficits in Trem2-deficient microglia established a reciprocal regulatory axis linking TMEM59 to microglial homeostasis.\",\n      \"evidence\": \"Co-IP, overexpression/knockdown, autophagy flux, and functional rescue assays in microglial cells\",\n      \"pmids\": [\"32826884\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\n        \"Mechanism of TREM2-mediated proteasomal targeting of TMEM59 not defined\",\n        \"In vivo validation of reciprocal regulation not provided\",\n        \"Single-lab finding awaiting independent confirmation\"\n      ]\n    },\n    {\n      \"year\": 2021,\n      \"claim\": \"TMEM59 knockout in a stroke model revealed an anti-inflammatory, anti-pyroptotic role: loss of TMEM59 potentiates NF-κB activation and NLRP3/GSDMD-N pyroptosis in microglia, positioning TMEM59 as a negative regulator of neuroinflammation.\",\n      \"evidence\": \"MCAO mouse model with TMEM59 KO, OGD/R in vitro, Western blot for pyroptosis markers, overexpression rescue\",\n      \"pmids\": [\"33517129\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\n        \"Direct molecular mechanism by which TMEM59 suppresses NF-κB not identified\",\n        \"Findings from a single lab with global KO—cell-type specificity not resolved\"\n      ]\n    },\n    {\n      \"year\": 2022,\n      \"claim\": \"Microglia-specific conditional knockout demonstrated that TMEM59 stabilizes CD93 protein to promote complement-dependent synapse engulfment in vivo, causally linking TMEM59 deficiency to excess excitatory synapses and ASD-like behaviors.\",\n      \"evidence\": \"Conditional KO mice, Co-IP, synapse engulfment assays, electrophysiology, behavioral testing\",\n      \"pmids\": [\"35606143\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\n        \"Mechanism by which TMEM59 prevents CD93 degradation not elucidated\",\n        \"Whether human TMEM59 variants associate with ASD or synaptic phenotypes unknown\"\n      ]\n    },\n    {\n      \"year\": 2025,\n      \"claim\": \"Interaction with LAMP2A and HSC70 and negative regulation of chaperone-mediated autophagy (CMA) revealed a second autophagy-regulatory axis for TMEM59, distinct from its ATG16L1-dependent function, with haploinsufficiency attenuating tauopathy in PS19 mice.\",\n      \"evidence\": \"Co-IP of endogenous partners, CMA activity assays, LAMP2A quantification, haploinsufficient mouse model with behavioral and neuropathological endpoints\",\n      \"pmids\": [\"40551290\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\n        \"Mechanism of TMEM59 inhibition of LAMP2A multimerization or CMA substrate translocation not defined\",\n        \"Single-lab finding; independent replication needed\",\n        \"Relationship between CMA inhibition and the ATG16L1-dependent autophagy function of TMEM59 not clarified\"\n      ]\n    },\n    {\n      \"year\": 2025,\n      \"claim\": \"Elucidation of HOXA5→FTO→m6A demethylation as the transcriptional and post-transcriptional circuit sustaining TMEM59 mRNA levels in stroke explained how TMEM59 anti-pyroptotic function is regulated upstream.\",\n      \"evidence\": \"MCAO/OGD-R, MeRIP for m6A, ChIP for HOXA5-FTO, RIP for YTHDF2-TMEM59 mRNA, functional rescue\",\n      \"pmids\": [\"40772328\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\n        \"Whether this m6A regulatory circuit operates outside stroke/ischemia contexts unknown\",\n        \"Quantitative contribution of m6A-dependent versus transcription-dependent TMEM59 regulation not dissected\"\n      ]\n    },\n    {\n      \"year\": null,\n      \"claim\": \"The structural basis for TMEM59's diverse protein interactions (ATG16L1, LAMP2A, CD93, TREM2, FZD/LRP6) is unknown, and how its glycosylation-modulatory, autophagy-regulatory, and signaling functions are coordinately controlled in different cell types remains an open question.\",\n      \"evidence\": \"\",\n      \"pmids\": [],\n      \"confidence\": \"Low\",\n      \"gaps\": [\n        \"No structural model of TMEM59 or its complexes exists\",\n        \"Integration of TMEM59's dual autophagy roles (ATG16L1-mediated and CMA) is uncharacterized\",\n        \"Physiological relevance of Golgi glycosylation function versus autophagy functions in vivo remains unresolved\"\n      ]\n    }\n  ],\n  \"mechanism_profile\": {\n    \"molecular_activity\": [\n      {\"term_id\": \"GO:0098772\", \"supporting_discovery_ids\": [0, 3, 7]},\n      {\"term_id\": \"GO:0060090\", \"supporting_discovery_ids\": [1, 2, 5]}\n    ],\n    \"localization\": [\n      {\"term_id\": \"GO:0005794\", \"supporting_discovery_ids\": [0]},\n      {\"term_id\": \"GO:0005768\", \"supporting_discovery_ids\": [1, 2]},\n      {\"term_id\": \"GO:0005764\", \"supporting_discovery_ids\": [7]}\n    ],\n    \"pathway\": [\n      {\"term_id\": \"R-HSA-9612973\", \"supporting_discovery_ids\": [1, 2, 4, 7]},\n      {\"term_id\": \"R-HSA-162582\", \"supporting_discovery_ids\": [3]},\n      {\"term_id\": \"R-HSA-168256\", \"supporting_discovery_ids\": [5, 6]},\n      {\"term_id\": \"R-HSA-392499\", \"supporting_discovery_ids\": [0]}\n    ],\n    \"complexes\": [],\n    \"partners\": [\n      \"ATG16L1\",\n      \"TREM2\",\n      \"CD93\",\n      \"FZD\",\n      \"LRP6\",\n      \"LAMP2A\",\n      \"HSC70\",\n      \"APP\"\n    ],\n    \"other_free_text\": []\n  }\n}\n```"}