{"public_id":"cl_e44ba69c394e6795323aab8daf1118aa","status":"active","superseded_by_public_id":null,"corpus_id":25883292,"text":"Chemical modification with N-bromosuccinimide in the absence of acarbose caused Clostridium glucoamylase to lose catalytic activity, and acarbose protected about 2 Trp residues from NBS oxidation.","confidence":0.9,"paper":{"corpus_id":25883292,"title":"Functional roles of Trp337 and Glu632 in Clostridium glucoamylase, as determined by chemical modification, mutagenesis, and the stopped-flow method.","url":"https://sah.borca.ai/papers/25883292"},"contributors":[{"id":32,"public_id":"7c402c1b98","public_label":"뀨 (7c402c1b98)","roles":["extraction"],"url":"https://sah.borca.ai/u/7c402c1b98"},{"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":0.9,"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_24abb011bc978c0a509ebcf54267e244","name":"acarbose protection","description":"Protection of Trp residues from NBS oxidation by the inhibitor acarbose, used to identify functionally important Trp residues.","types":["inhibitor","method"],"url":"https://sah.borca.ai/concepts/co_24abb011bc978c0a509ebcf54267e244"},{"public_id":"co_4df3c144917575cccb202afe1369c3a3","name":"Clostridium glucoamylase","description":"Glucoamylase (EC 3.2.1.3) from Clostridium sp. G0005, the enzyme studied in this work.","types":["enzyme"],"url":"https://sah.borca.ai/concepts/co_4df3c144917575cccb202afe1369c3a3"},{"public_id":"co_f57f63d92620c0d999c4a014b185f77c","name":"N-bromosuccinimide oxidation","description":"Chemical modification treatment with N-bromosuccinimide used to oxidize Trp residues in CGA.","types":["chemical treatment"],"url":"https://sah.borca.ai/concepts/co_f57f63d92620c0d999c4a014b185f77c"}],"related_claims":[],"url":"https://sah.borca.ai/claims/cl_e44ba69c394e6795323aab8daf1118aa"}