{"public_id":"cl_a7216ee0ada9b847c5d0809dbc172046","status":"active","superseded_by_public_id":null,"corpus_id":215750202,"text":"Lpp contributes to E. coli cell envelope stiffness through its covalent crosslink between the outer membrane and peptidoglycan and through control of periplasmic space width.","confidence":0.98,"paper":{"corpus_id":215750202,"title":"Lipoprotein Lpp regulates the mechanical properties of the E. coli cell envelope","url":"https://sah.borca.ai/papers/215750202"},"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":0.98,"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_032bbdb259d49c96a357dc1226908e68","name":"outer membrane","description":"The outer lipid membrane of Gram-negative bacteria that is linked to the peptidoglycan layer by Lpp.","types":["cellular structure","membrane"],"url":"https://sah.borca.ai/concepts/co_032bbdb259d49c96a357dc1226908e68"},{"public_id":"co_50e7eb5e0147b6a9c02335fab2fde302","name":"periplasmic space","description":"The compartment between the outer membrane and the cytoplasmic membrane in Gram-negative bacteria.","types":["cellular compartment","anatomical structure"],"url":"https://sah.borca.ai/concepts/co_50e7eb5e0147b6a9c02335fab2fde302"},{"public_id":"co_c7251a8059a90ef8514769802b2bb819","name":"Lipoprotein Lpp","description":"An Escherichia coli outer-membrane lipoprotein that forms the only covalent crosslink between the outer membrane and peptidoglycan.","types":["protein","lipoprotein"],"url":"https://sah.borca.ai/concepts/co_c7251a8059a90ef8514769802b2bb819"},{"public_id":"co_f916a48dd74f920434b764b4d228cc77","name":"peptidoglycan","description":"The mesh-like cell wall polymer layer beneath the outer membrane in bacteria.","types":["cell wall component","polymer"],"url":"https://sah.borca.ai/concepts/co_f916a48dd74f920434b764b4d228cc77"},{"public_id":"co_fd1230ca83f37ad5bf1b248b6a5b0dd9","name":"cell envelope stiffness","description":"The mechanical rigidity of the bacterial cell envelope measured as resistance to deformation.","types":["mechanical property","outcome"],"url":"https://sah.borca.ai/concepts/co_fd1230ca83f37ad5bf1b248b6a5b0dd9"}],"related_claims":[],"url":"https://sah.borca.ai/claims/cl_a7216ee0ada9b847c5d0809dbc172046"}