{"gene":"SCYL3","run_date":"2026-06-10T07:46:30","timeline":{"discoveries":[{"year":2003,"finding":"PACE-1 (SCYL3) was identified as a novel binding partner of ezrin via its C-terminal domain using a yeast two-hybrid screen. PACE-1 localizes to the cytoplasmic face of the Golgi apparatus in a manner dependent on its N-terminal myristoylation consensus sequence (but independent of ezrin), and also co-localizes with ezrin in lamellipodia. Despite possessing a putative N-terminal kinase domain, biochemical assays demonstrated that PACE-1 has associated rather than intrinsic kinase activity.","method":"Yeast two-hybrid screen, subcellular localization imaging, biochemical kinase assays","journal":"Experimental cell research","confidence":"Medium","confidence_rationale":"Tier 2–3 / Moderate — yeast two-hybrid identification, subcellular localization by imaging, kinase assay with functional interpretation; single lab, multiple orthogonal methods","pmids":["12651155"],"is_preprint":false},{"year":2018,"finding":"Genetic epistasis in double-knockout mice showed that SCYL3 and SCYL1 have overlapping roles in maintaining motor neuron viability. Loss of Scyl3 alone had no apparent phenotype, but accelerated the onset of the motor neuron disorder caused by Scyl1 deficiency, including TDP-43 mislocalization in spinal motor neurons, motor neuron degeneration, hindlimb paralysis, muscle wasting, and loss of large-caliber axons, indicating that SCYL3 functions in TDP-43 proteostasis and neuronal survival in concert with SCYL1.","method":"Genetic epistasis via Scyl1/Scyl3 double-knockout mouse model, histopathology, TDP-43 localization by immunostaining","journal":"The Journal of neuroscience","confidence":"High","confidence_rationale":"Tier 2 / Strong — clean double-KO genetic epistasis with multiple defined phenotypic readouts (neurodegeneration, TDP-43 mislocalization, motor deficits), rigorous in vivo study","pmids":["29437892"],"is_preprint":false},{"year":2022,"finding":"SCYL3 physically binds ROCK2 (Rho kinase 2) via its C-terminal domain, as demonstrated by co-immunoprecipitation. SCYL3 regulates the stability and transactivating activity of ROCK2, leading to increased formation of actin stress fibers and focal adhesions, and promoting hepatocellular carcinoma cell proliferation, migration, and in vivo metastasis.","method":"Co-immunoprecipitation, western blotting, immunofluorescence staining, SCYL3 knockdown/overexpression in HCC cells, in vivo tumor model (Tp53 KO/c-Myc OE mice with sleeping beauty transposon system)","journal":"JHEP reports : innovation in hepatology","confidence":"Medium","confidence_rationale":"Tier 2–3 / Moderate — reciprocal co-IP, in vitro and in vivo functional validation, multiple orthogonal methods; single lab","pmids":["36440258"],"is_preprint":false},{"year":2021,"finding":"The yeast homolog of SCYL3 (Cex1) functions as a component of the COPI intracellular trafficking machinery by interacting with COPI coat subunits (Sec27, Sec28, Sec33/Ret1/Cop1), and loss of Cex1 causes mistargeting of the N-glycosylation protein Wbp1, supporting a conserved role for SCYL proteins (including SCYL3) in Golgi morphology and protein glycosylation via COPI machinery.","method":"Protein–protein interaction (co-IP with COPI subunits), subcellular localization imaging, yeast deletion mutant phenotypic analysis","journal":"Biology open","confidence":"Low","confidence_rationale":"Tier 3 / Weak — findings are from a yeast ortholog (Cex1), extrapolated to mammalian SCYL3; single lab, no direct functional validation in mammalian cells","pmids":["33753324"],"is_preprint":false}],"current_model":"SCYL3 (PACE-1) is a pseudokinase (lacking intrinsic kinase activity) that localizes to the Golgi apparatus via N-terminal myristoylation and to lamellipodia via interaction with ezrin's C-terminal domain; it physically binds and stabilizes ROCK2 through its own C-terminal domain to promote actin stress fiber formation and cell migration, and it functions redundantly with SCYL1 to maintain motor neuron viability and TDP-43 proteostasis in vivo."},"narrative":{"mechanistic_narrative":"SCYL3 (PACE-1) is a pseudokinase that links the actin cytoskeleton and Golgi-associated trafficking machinery to cell migration and neuronal proteostasis [PMID:12651155, PMID:36440258]. Although it contains an N-terminal kinase-like domain, biochemical assays show it lacks intrinsic catalytic activity and instead carries associated kinase activity, marking it as a scaffolding pseudokinase [PMID:12651155]. SCYL3 localizes to the cytoplasmic face of the Golgi apparatus through its N-terminal myristoylation signal and to lamellipodia via a C-terminal interaction with ezrin [PMID:12651155]. Through this same C-terminal region it binds and stabilizes ROCK2, enhancing ROCK2 transactivating activity to drive actin stress fiber and focal adhesion formation; in hepatocellular carcinoma this axis promotes proliferation, migration, and metastasis [PMID:36440258]. In vivo, SCYL3 acts redundantly with SCYL1 to sustain motor neuron viability and TDP-43 proteostasis: loss of Scyl3 alone is phenotypically silent but accelerates the motor neuron degeneration, TDP-43 mislocalization, and paralysis caused by Scyl1 deficiency [PMID:29437892]. Beyond these findings, the molecular basis by which SCYL3 connects its Golgi and cytoskeletal localizations to TDP-43 proteostasis has not been characterized in the available corpus.","teleology":[{"year":2003,"claim":"Established SCYL3 as a myristoylated, Golgi- and lamellipodia-localized pseudokinase that physically engages the cytoskeletal adaptor ezrin, placing an uncharacterized kinase-like protein at the membrane–cytoskeleton interface.","evidence":"Yeast two-hybrid screen, subcellular localization imaging, and biochemical kinase assays","pmids":["12651155"],"confidence":"Medium","gaps":["Functional consequence of the ezrin interaction for migration not tested","Identity of the associated kinase activity not determined","No reciprocal validation of the ezrin binding beyond two-hybrid/imaging"]},{"year":2018,"claim":"Resolved the in vivo role of SCYL3 by showing it acts redundantly with SCYL1 to maintain motor neuron survival and TDP-43 proteostasis, explaining why single Scyl3 loss is phenotypically silent.","evidence":"Scyl1/Scyl3 double-knockout mouse genetic epistasis with histopathology and TDP-43 immunostaining","pmids":["29437892"],"confidence":"High","gaps":["Molecular mechanism linking SCYL3 to TDP-43 localization unknown","Whether the trafficking/cytoskeletal roles underlie the neuronal phenotype unresolved","No direct substrate or interaction partner identified in neurons"]},{"year":2021,"claim":"Used the yeast ortholog Cex1 to propose a conserved SCYL function in COPI-dependent Golgi trafficking and protein glycosylation, providing a candidate mechanistic context for SCYL3's Golgi localization.","evidence":"Co-IP with COPI coat subunits, localization imaging, and yeast deletion phenotyping (yeast ortholog Cex1)","pmids":["33753324"],"confidence":"Low","gaps":["Findings are from a yeast ortholog and not validated for mammalian SCYL3","No demonstration that human SCYL3 binds COPI subunits","Link between COPI function and the migration/neuronal roles untested"]},{"year":2022,"claim":"Identified ROCK2 as a direct C-terminal binding partner that SCYL3 stabilizes, connecting SCYL3 to Rho-kinase signaling, actin remodeling, and tumor cell migration/metastasis.","evidence":"Reciprocal co-immunoprecipitation, knockdown/overexpression in HCC cells, and an in vivo mouse metastasis model","pmids":["36440258"],"confidence":"Medium","gaps":["Mechanism by which SCYL3 stabilizes ROCK2 not defined","Single lab; not independently confirmed","Relationship between ROCK2 binding and ezrin/Golgi localization not integrated"]},{"year":null,"claim":"How SCYL3's scaffolding at the Golgi and cytoskeleton mechanistically connects to ROCK2 signaling and to SCYL1-redundant TDP-43 proteostasis remains unresolved.","evidence":"No direct evidence in the available corpus","pmids":[],"confidence":"Low","gaps":["No unified mechanism linking trafficking, cytoskeletal, and neuronal functions","No structural model of SCYL3 domains in complex with partners","Identity of the 'associated' kinase activity remains unknown"]}],"mechanism_profile":{"molecular_activity":[{"term_id":"GO:0060090","term_label":"molecular adaptor activity","supporting_discovery_ids":[0,2]},{"term_id":"GO:0008092","term_label":"cytoskeletal protein binding","supporting_discovery_ids":[0]}],"localization":[{"term_id":"GO:0005794","term_label":"Golgi apparatus","supporting_discovery_ids":[0]},{"term_id":"GO:0005856","term_label":"cytoskeleton","supporting_discovery_ids":[0,2]}],"pathway":[],"complexes":[],"partners":["EZR","ROCK2","SCYL1"],"other_free_text":[]}},"prefetch_data":{"uniprot":{"accession":"Q8IZE3","full_name":"Protein-associating with the carboxyl-terminal domain of ezrin","aliases":["Ezrin-binding protein PACE-1","SCY1-like protein 3"],"length_aa":742,"mass_kda":82.9,"function":"May play a role in regulating cell adhesion/migration complexes in migrating cells","subcellular_location":"Cytoplasm; Golgi apparatus; Cell projection, lamellipodium","url":"https://www.uniprot.org/uniprotkb/Q8IZE3/entry"},"depmap":{"release":"DepMap","has_data":true,"is_common_essential":false,"resolved_as":"","url":"https://depmap.org/portal/gene/SCYL3","classification":"Not Classified","n_dependent_lines":4,"n_total_lines":1208,"dependency_fraction":0.0033112582781456954},"opencell":{"profiled":false,"resolved_as":"","ensg_id":"","cell_line_id":"","localizations":[],"interactors":[{"gene":"COPA","stoichiometry":0.2},{"gene":"COPB2","stoichiometry":0.2},{"gene":"COPE","stoichiometry":0.2},{"gene":"COPG1","stoichiometry":0.2},{"gene":"SYAP1","stoichiometry":0.2}],"url":"https://opencell.sf.czbiohub.org/search/SCYL3","total_profiled":1310},"omim":[{"mim_id":"608192","title":"SCY1-LIKE PROTEIN 3; SCYL3","url":"https://www.omim.org/entry/608192"}],"hpa":{"profiled":true,"resolved_as":"","reliability":"Supported","locations":[{"location":"Golgi apparatus","reliability":"Supported"},{"location":"Cytosol","reliability":"Supported"}],"tissue_specificity":"Low tissue specificity","tissue_distribution":"Detected in all","driving_tissues":[],"url":"https://www.proteinatlas.org/search/SCYL3"},"hgnc":{"alias_symbol":["PACE-1","PACE1"],"prev_symbol":[]},"alphafold":{"accession":"Q8IZE3","domains":[{"cath_id":"1.10.510.10","chopping":"13-246","consensus_level":"medium","plddt":94.0378,"start":13,"end":246},{"cath_id":"1.25.40","chopping":"249-414","consensus_level":"medium","plddt":94.3846,"start":249,"end":414}],"viewer_url":"https://alphafold.ebi.ac.uk/entry/Q8IZE3","model_url":"https://alphafold.ebi.ac.uk/files/AF-Q8IZE3-F1-model_v6.cif","pae_url":"https://alphafold.ebi.ac.uk/files/AF-Q8IZE3-F1-predicted_aligned_error_v6.png","plddt_mean":69.44},"mouse_models":{"mgi_url":"https://www.informatics.jax.org/marker/summary?nomen=SCYL3","jax_strain_url":"https://www.jax.org/strain/search?query=SCYL3"},"sequence":{"accession":"Q8IZE3","fasta_url":"https://rest.uniprot.org/uniprotkb/Q8IZE3.fasta","uniprot_url":"https://www.uniprot.org/uniprotkb/Q8IZE3/entry","alphafold_viewer_url":"https://alphafold.ebi.ac.uk/entry/Q8IZE3"}},"corpus_meta":[{"pmid":"33643817","id":"PMC_33643817","title":"Development of small-molecule tropomyosin receptor kinase (TRK) inhibitors for NTRK fusion cancers.","date":"2020","source":"Acta pharmaceutica Sinica. B","url":"https://pubmed.ncbi.nlm.nih.gov/33643817","citation_count":118,"is_preprint":false},{"pmid":"9973365","id":"PMC_9973365","title":"Cloning and characterization of arylamine N-acetyltransferase genes from Mycobacterium smegmatis and Mycobacterium tuberculosis: increased expression results in isoniazid resistance.","date":"1999","source":"Journal of bacteriology","url":"https://pubmed.ncbi.nlm.nih.gov/9973365","citation_count":109,"is_preprint":false},{"pmid":"28903424","id":"PMC_28903424","title":"Identification and characterization of a novel SCYL3-NTRK1 rearrangement in a colorectal cancer patient.","date":"2017","source":"Oncotarget","url":"https://pubmed.ncbi.nlm.nih.gov/28903424","citation_count":31,"is_preprint":false},{"pmid":"34356872","id":"PMC_34356872","title":"Different Within-Host Viral Evolution Dynamics in Severely Immunosuppressed Cases with Persistent SARS-CoV-2.","date":"2021","source":"Biomedicines","url":"https://pubmed.ncbi.nlm.nih.gov/34356872","citation_count":27,"is_preprint":false},{"pmid":"31083047","id":"PMC_31083047","title":"Low-Carbohydrate Training Increases Protein Requirements of Endurance Athletes.","date":"2019","source":"Medicine and science in sports and exercise","url":"https://pubmed.ncbi.nlm.nih.gov/31083047","citation_count":25,"is_preprint":false},{"pmid":"26981075","id":"PMC_26981075","title":"SCYL pseudokinases in neuronal function and survival.","date":"2016","source":"Neural regeneration research","url":"https://pubmed.ncbi.nlm.nih.gov/26981075","citation_count":23,"is_preprint":false},{"pmid":"29437892","id":"PMC_29437892","title":"Overlapping Role of SCYL1 and SCYL3 in Maintaining Motor Neuron Viability.","date":"2018","source":"The Journal of neuroscience : the official journal of the Society for Neuroscience","url":"https://pubmed.ncbi.nlm.nih.gov/29437892","citation_count":22,"is_preprint":false},{"pmid":"12651155","id":"PMC_12651155","title":"PACE-1, a novel protein that interacts with the C-terminal domain of ezrin.","date":"2003","source":"Experimental cell research","url":"https://pubmed.ncbi.nlm.nih.gov/12651155","citation_count":19,"is_preprint":false},{"pmid":"36440258","id":"PMC_36440258","title":"SCYL3, as a novel binding partner and regulator of ROCK2, promotes hepatocellular carcinoma progression.","date":"2022","source":"JHEP reports : innovation in hepatology","url":"https://pubmed.ncbi.nlm.nih.gov/36440258","citation_count":11,"is_preprint":false},{"pmid":"9249531","id":"PMC_9249531","title":"Endothelin-1 limits increases in blood flow to native and collateral-dependent myocardium.","date":"1997","source":"The American journal of physiology","url":"https://pubmed.ncbi.nlm.nih.gov/9249531","citation_count":8,"is_preprint":false},{"pmid":"35525561","id":"PMC_35525561","title":"Dissecting protein function in vivo: Engineering allelic series in mice using CRISPR-Cas9 technology.","date":"2022","source":"Methods in enzymology","url":"https://pubmed.ncbi.nlm.nih.gov/35525561","citation_count":4,"is_preprint":false},{"pmid":"23634381","id":"PMC_23634381","title":"Non-Parkinson movement disorders: Five new things.","date":"2013","source":"Neurology. Clinical practice","url":"https://pubmed.ncbi.nlm.nih.gov/23634381","citation_count":3,"is_preprint":false},{"pmid":"31921945","id":"PMC_31921945","title":"A bacterial phyla dataset for protein function prediction.","date":"2019","source":"Data in brief","url":"https://pubmed.ncbi.nlm.nih.gov/31921945","citation_count":2,"is_preprint":false},{"pmid":"33753324","id":"PMC_33753324","title":"Cex1 is a component of the COPI intracellular trafficking machinery.","date":"2021","source":"Biology open","url":"https://pubmed.ncbi.nlm.nih.gov/33753324","citation_count":1,"is_preprint":false},{"pmid":"21188226","id":"PMC_21188226","title":"Analysis on the susceptibility genes in two chinese pedigrees with familial Parkinson's disease.","date":"2010","source":"Neurology research international","url":"https://pubmed.ncbi.nlm.nih.gov/21188226","citation_count":1,"is_preprint":false},{"pmid":"38744227","id":"PMC_38744227","title":"Bayesian colocalization of GWAS and eQTL signals reveals cell type-specific genes and regulatory variants for susceptibility to subtypes of ischemic stroke.","date":"2024","source":"Computational biology and chemistry","url":"https://pubmed.ncbi.nlm.nih.gov/38744227","citation_count":0,"is_preprint":false}],"cost":{"stage1":{"model":"claude-sonnet-4-6","input_tokens":10281,"output_tokens":1287,"usd":0.025074,"stage1_stop_reason":"end_turn"},"stage2":{"model":"claude-opus-4-8","input_tokens":7925,"output_tokens":2087,"usd":0.0459,"stage2_stop_reason":"end_turn"},"total_usd":0.070974,"stage1_batch_id":"msgbatch_013LWZZT6MWaqB9qyTSeQBmU","stage2_batch_id":"msgbatch_0194ZzQaTGNpruoNJBbEMbt3","note":"batch pricing = 50% of standard"},"stage1_raw":"```json\n{\n  \"discoveries\": [\n    {\n      \"year\": 2003,\n      \"finding\": \"PACE-1 (SCYL3) was identified as a novel binding partner of ezrin via its C-terminal domain using a yeast two-hybrid screen. PACE-1 localizes to the cytoplasmic face of the Golgi apparatus in a manner dependent on its N-terminal myristoylation consensus sequence (but independent of ezrin), and also co-localizes with ezrin in lamellipodia. Despite possessing a putative N-terminal kinase domain, biochemical assays demonstrated that PACE-1 has associated rather than intrinsic kinase activity.\",\n      \"method\": \"Yeast two-hybrid screen, subcellular localization imaging, biochemical kinase assays\",\n      \"journal\": \"Experimental cell research\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2–3 / Moderate — yeast two-hybrid identification, subcellular localization by imaging, kinase assay with functional interpretation; single lab, multiple orthogonal methods\",\n      \"pmids\": [\"12651155\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2018,\n      \"finding\": \"Genetic epistasis in double-knockout mice showed that SCYL3 and SCYL1 have overlapping roles in maintaining motor neuron viability. Loss of Scyl3 alone had no apparent phenotype, but accelerated the onset of the motor neuron disorder caused by Scyl1 deficiency, including TDP-43 mislocalization in spinal motor neurons, motor neuron degeneration, hindlimb paralysis, muscle wasting, and loss of large-caliber axons, indicating that SCYL3 functions in TDP-43 proteostasis and neuronal survival in concert with SCYL1.\",\n      \"method\": \"Genetic epistasis via Scyl1/Scyl3 double-knockout mouse model, histopathology, TDP-43 localization by immunostaining\",\n      \"journal\": \"The Journal of neuroscience\",\n      \"confidence\": \"High\",\n      \"confidence_rationale\": \"Tier 2 / Strong — clean double-KO genetic epistasis with multiple defined phenotypic readouts (neurodegeneration, TDP-43 mislocalization, motor deficits), rigorous in vivo study\",\n      \"pmids\": [\"29437892\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2022,\n      \"finding\": \"SCYL3 physically binds ROCK2 (Rho kinase 2) via its C-terminal domain, as demonstrated by co-immunoprecipitation. SCYL3 regulates the stability and transactivating activity of ROCK2, leading to increased formation of actin stress fibers and focal adhesions, and promoting hepatocellular carcinoma cell proliferation, migration, and in vivo metastasis.\",\n      \"method\": \"Co-immunoprecipitation, western blotting, immunofluorescence staining, SCYL3 knockdown/overexpression in HCC cells, in vivo tumor model (Tp53 KO/c-Myc OE mice with sleeping beauty transposon system)\",\n      \"journal\": \"JHEP reports : innovation in hepatology\",\n      \"confidence\": \"Medium\",\n      \"confidence_rationale\": \"Tier 2–3 / Moderate — reciprocal co-IP, in vitro and in vivo functional validation, multiple orthogonal methods; single lab\",\n      \"pmids\": [\"36440258\"],\n      \"is_preprint\": false\n    },\n    {\n      \"year\": 2021,\n      \"finding\": \"The yeast homolog of SCYL3 (Cex1) functions as a component of the COPI intracellular trafficking machinery by interacting with COPI coat subunits (Sec27, Sec28, Sec33/Ret1/Cop1), and loss of Cex1 causes mistargeting of the N-glycosylation protein Wbp1, supporting a conserved role for SCYL proteins (including SCYL3) in Golgi morphology and protein glycosylation via COPI machinery.\",\n      \"method\": \"Protein–protein interaction (co-IP with COPI subunits), subcellular localization imaging, yeast deletion mutant phenotypic analysis\",\n      \"journal\": \"Biology open\",\n      \"confidence\": \"Low\",\n      \"confidence_rationale\": \"Tier 3 / Weak — findings are from a yeast ortholog (Cex1), extrapolated to mammalian SCYL3; single lab, no direct functional validation in mammalian cells\",\n      \"pmids\": [\"33753324\"],\n      \"is_preprint\": false\n    }\n  ],\n  \"current_model\": \"SCYL3 (PACE-1) is a pseudokinase (lacking intrinsic kinase activity) that localizes to the Golgi apparatus via N-terminal myristoylation and to lamellipodia via interaction with ezrin's C-terminal domain; it physically binds and stabilizes ROCK2 through its own C-terminal domain to promote actin stress fiber formation and cell migration, and it functions redundantly with SCYL1 to maintain motor neuron viability and TDP-43 proteostasis in vivo.\"\n}\n```","stage2_raw":"{\n  \"mechanistic_narrative\": \"SCYL3 (PACE-1) is a pseudokinase that links the actin cytoskeleton and Golgi-associated trafficking machinery to cell migration and neuronal proteostasis [#0, #2]. Although it contains an N-terminal kinase-like domain, biochemical assays show it lacks intrinsic catalytic activity and instead carries associated kinase activity, marking it as a scaffolding pseudokinase [#0]. SCYL3 localizes to the cytoplasmic face of the Golgi apparatus through its N-terminal myristoylation signal and to lamellipodia via a C-terminal interaction with ezrin [#0]. Through this same C-terminal region it binds and stabilizes ROCK2, enhancing ROCK2 transactivating activity to drive actin stress fiber and focal adhesion formation; in hepatocellular carcinoma this axis promotes proliferation, migration, and metastasis [#2]. In vivo, SCYL3 acts redundantly with SCYL1 to sustain motor neuron viability and TDP-43 proteostasis: loss of Scyl3 alone is phenotypically silent but accelerates the motor neuron degeneration, TDP-43 mislocalization, and paralysis caused by Scyl1 deficiency [#1]. Beyond these findings, the molecular basis by which SCYL3 connects its Golgi and cytoskeletal localizations to TDP-43 proteostasis has not been characterized in the available corpus.\",\n  \"teleology\": [\n    {\n      \"year\": 2003,\n      \"claim\": \"Established SCYL3 as a myristoylated, Golgi- and lamellipodia-localized pseudokinase that physically engages the cytoskeletal adaptor ezrin, placing an uncharacterized kinase-like protein at the membrane–cytoskeleton interface.\",\n      \"evidence\": \"Yeast two-hybrid screen, subcellular localization imaging, and biochemical kinase assays\",\n      \"pmids\": [\"12651155\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\n        \"Functional consequence of the ezrin interaction for migration not tested\",\n        \"Identity of the associated kinase activity not determined\",\n        \"No reciprocal validation of the ezrin binding beyond two-hybrid/imaging\"\n      ]\n    },\n    {\n      \"year\": 2018,\n      \"claim\": \"Resolved the in vivo role of SCYL3 by showing it acts redundantly with SCYL1 to maintain motor neuron survival and TDP-43 proteostasis, explaining why single Scyl3 loss is phenotypically silent.\",\n      \"evidence\": \"Scyl1/Scyl3 double-knockout mouse genetic epistasis with histopathology and TDP-43 immunostaining\",\n      \"pmids\": [\"29437892\"],\n      \"confidence\": \"High\",\n      \"gaps\": [\n        \"Molecular mechanism linking SCYL3 to TDP-43 localization unknown\",\n        \"Whether the trafficking/cytoskeletal roles underlie the neuronal phenotype unresolved\",\n        \"No direct substrate or interaction partner identified in neurons\"\n      ]\n    },\n    {\n      \"year\": 2021,\n      \"claim\": \"Used the yeast ortholog Cex1 to propose a conserved SCYL function in COPI-dependent Golgi trafficking and protein glycosylation, providing a candidate mechanistic context for SCYL3's Golgi localization.\",\n      \"evidence\": \"Co-IP with COPI coat subunits, localization imaging, and yeast deletion phenotyping (yeast ortholog Cex1)\",\n      \"pmids\": [\"33753324\"],\n      \"confidence\": \"Low\",\n      \"gaps\": [\n        \"Findings are from a yeast ortholog and not validated for mammalian SCYL3\",\n        \"No demonstration that human SCYL3 binds COPI subunits\",\n        \"Link between COPI function and the migration/neuronal roles untested\"\n      ]\n    },\n    {\n      \"year\": 2022,\n      \"claim\": \"Identified ROCK2 as a direct C-terminal binding partner that SCYL3 stabilizes, connecting SCYL3 to Rho-kinase signaling, actin remodeling, and tumor cell migration/metastasis.\",\n      \"evidence\": \"Reciprocal co-immunoprecipitation, knockdown/overexpression in HCC cells, and an in vivo mouse metastasis model\",\n      \"pmids\": [\"36440258\"],\n      \"confidence\": \"Medium\",\n      \"gaps\": [\n        \"Mechanism by which SCYL3 stabilizes ROCK2 not defined\",\n        \"Single lab; not independently confirmed\",\n        \"Relationship between ROCK2 binding and ezrin/Golgi localization not integrated\"\n      ]\n    },\n    {\n      \"year\": null,\n      \"claim\": \"How SCYL3's scaffolding at the Golgi and cytoskeleton mechanistically connects to ROCK2 signaling and to SCYL1-redundant TDP-43 proteostasis remains unresolved.\",\n      \"evidence\": \"No direct evidence in the available corpus\",\n      \"pmids\": [],\n      \"confidence\": \"Low\",\n      \"gaps\": [\n        \"No unified mechanism linking trafficking, cytoskeletal, and neuronal functions\",\n        \"No structural model of SCYL3 domains in complex with partners\",\n        \"Identity of the 'associated' kinase activity remains unknown\"\n      ]\n    }\n  ],\n  \"mechanism_profile\": {\n    \"molecular_activity\": [\n      {\"term_id\": \"GO:0060090\", \"supporting_discovery_ids\": [0, 2]},\n      {\"term_id\": \"GO:0008092\", \"supporting_discovery_ids\": [0]}\n    ],\n    \"localization\": [\n      {\"term_id\": \"GO:0005794\", \"supporting_discovery_ids\": [0]},\n      {\"term_id\": \"GO:0005856\", \"supporting_discovery_ids\": [0, 2]}\n    ],\n    \"pathway\": [],\n    \"complexes\": [],\n    \"partners\": [\"EZR\", \"ROCK2\", \"SCYL1\"],\n    \"other_free_text\": []\n  }\n}","audit_flag":null,"evaluation":{"pairwise":"win","faith_supported":5,"faith_total":5,"faith_pct":100.0}}