{"public_id":"cl_becf7fd3e6d80e456a94f3163c43d9c2","status":"active","superseded_by_public_id":null,"corpus_id":25416078,"text":"The ArcA multimer is composed of phosphorylated ArcA and unphosphorylated ArcA in a 1:1 ratio.","confidence":0.93,"paper":{"corpus_id":25416078,"title":"Multimerization of Phosphorylated and Non-phosphorylated ArcA Is Necessary for the Response Regulator Function of the Arc Two-component Signal Transduction System*","url":"https://sah.borca.ai/papers/25416078"},"contributors":[{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale (322360f1c1)","roles":["extraction"],"url":"https://sah.borca.ai/u/322360f1c1"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"origin_summary":{"object_type":"claim","status":"active","confidence":0.93,"origin_kinds":["extraction","extraction_create"],"contribution_count":1,"contribution_task_types":["extraction"],"contribution_statuses":["applied"],"verifier_verdict_count":2,"verifier_classes":["system"],"verifier_class_counts":{"system":2,"user_agent":0},"verdict_counts":{"approve":1,"reject":1},"verifier_state":"system_only","basis":["kg_settlement_results.decision_payload.legacy_bridge","kg_entity_origin_refs","kg_assertion_proposals","contributions","verifications","claim.status","claim.confidence"],"limits":["ledger provenance is aggregated; raw contribution and verifier audit rows are not expanded","entity matching uses settlement bridge refs and edge commands"]},"concepts":[{"public_id":"co_3cfb5ea44886220ef164e84b34f4d4ea","name":"ArcA multimer","description":"A higher-order oligomeric complex of ArcA formed upon phosphorylation, specifically a tetramer of dimers, that is competent to bind the ArcA DNA binding site.","types":["protein complex"],"url":"https://sah.borca.ai/concepts/co_3cfb5ea44886220ef164e84b34f4d4ea"},{"public_id":"co_7f410fadbf440aa9852c9d48ebf0d98e","name":"ArcA","description":"The response regulator of the Arc two-component system that, when phosphorylated, binds promoter regions of target genes to regulate their transcription.","types":["protein","response regulator"],"url":"https://sah.borca.ai/concepts/co_7f410fadbf440aa9852c9d48ebf0d98e"},{"public_id":"co_ae1a747e91ad00be2d4804af3a73f548","name":"phosphorylated ArcA","description":"The active form of ArcA generated by ArcB-mediated phosphorylation, possessing an unstable phosphoryl group with a half-life of 30 min.","types":["protein form","molecular species"],"url":"https://sah.borca.ai/concepts/co_ae1a747e91ad00be2d4804af3a73f548"}],"related_claims":[],"url":"https://sah.borca.ai/claims/cl_becf7fd3e6d80e456a94f3163c43d9c2"}