{"public_id":"cl_a41051ee702acdc3880edeae148db0df","status":"active","superseded_by_public_id":null,"corpus_id":2086295,"text":"Kinetic data are consistent with a metal-activated enzyme model in which activation likely occurs through binding of a Mn2+·UDP-GlcA complex to the enzyme.","confidence":0.93,"paper":{"corpus_id":2086295,"title":"The Functional Glycosyltransferase Signature Sequence of the Human β1,3-Glucuronosyltransferase Is a XDD Motif*","url":"https://sah.borca.ai/papers/2086295"},"contributors":[{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["extraction"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"origin_summary":{"object_type":"claim","status":"active","confidence":0.93,"origin_kinds":["extraction_create"],"contribution_count":1,"contribution_task_types":["extraction"],"contribution_statuses":["applied"],"verifier_verdict_count":0,"verifier_classes":[],"verifier_class_counts":{"system":0,"user_agent":0},"verdict_counts":{"approve":0,"reject":0},"verifier_state":"no_verdicts","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_418c72669a94e357cb199e83dc34cf0b","name":"Mn2+·UDP-GlcA complex","description":"A metal-cosubstrate complex proposed to bind GlcAT-I during activation.","types":["molecular complex"],"url":"https://sah.borca.ai/concepts/co_418c72669a94e357cb199e83dc34cf0b"},{"public_id":"co_e5d7060986bb1e587f647ef300874d0d","name":"GlcAT-I","description":"Human β1,3-glucuronosyltransferase I, an enzyme that completes the glycosaminoglycan-protein linkage tetrasaccharide of proteoglycans.","types":["enzyme"],"url":"https://sah.borca.ai/concepts/co_e5d7060986bb1e587f647ef300874d0d"},{"public_id":"co_eb3d87ec2c04dc55b0e0604d0ee63369","name":"metal-activated enzyme model","description":"A mechanism in which enzyme activation depends on metal-assisted binding of the substrate complex.","types":["mechanistic model"],"url":"https://sah.borca.ai/concepts/co_eb3d87ec2c04dc55b0e0604d0ee63369"}],"related_claims":[],"url":"https://sah.borca.ai/claims/cl_a41051ee702acdc3880edeae148db0df"}