{"id":"3e2fdbf5-5a42-5fa5-8f48-93d1109d7cae","stable_key":"8600a864-6653-52c7-9718-1362c5af4577:gamma-nonalactone-egta-trpa1","predicate":"suppresses_lactone_response","statement":"EGTA treatment suppressed the gamma-nonalactone-evoked TRPA1 calcium signal.","claim_class":"mechanistic","status":"source_derived_draft","evidence_grade":"ungraded","direction":"negative","is_public":true,"mechanism_event_id":"31904137-8694-50d0-90f1-863dedb6af50","mechanism_event_label":"EGTA treatment suppressed the gamma-nonalactone-evoked TRPA1 calcium signal.","subject":{"id":"bb75c16e-757d-5817-b998-dfe2989f4013","slug":"egta","display_name":"EGTA","entity_type_key":"small_molecule"},"object":{"id":"576dbf0d-1a73-5955-acc6-d62d054b37f3","slug":"human-trpa1-hek293-calcium-response","display_name":"Calcium response of human-TRPA1-expressing HEK293 cells","entity_type_key":"cellular_process"},"evidence_count":1,"mechanism_event":{"id":"31904137-8694-50d0-90f1-863dedb6af50","stable_key":"8600a864-6653-52c7-9718-1362c5af4577:gamma-nonalactone-egta-trpa1-event","event_type":"observed_relationship","label":"EGTA treatment suppressed the gamma-nonalactone-evoked TRPA1 calcium signal.","description":"EGTA treatment suppressed the gamma-nonalactone-evoked TRPA1 calcium signal.","status":"provisional","compartment":null,"participants":[{"entity":{"id":"bb75c16e-757d-5817-b998-dfe2989f4013","slug":"egta","display_name":"EGTA","entity_type_key":"small_molecule"},"role":"subject","stoichiometry":null,"state_label":"","sequence_order":0,"notes":""},{"entity":{"id":"576dbf0d-1a73-5955-acc6-d62d054b37f3","slug":"human-trpa1-hek293-calcium-response","display_name":"Calcium response of human-TRPA1-expressing HEK293 cells","entity_type_key":"cellular_process"},"role":"target","stoichiometry":null,"state_label":"","sequence_order":1,"notes":""},{"entity":{"id":"2b85fa4a-5c91-5de9-aead-a443bc4394af","slug":"gamma-nonalactone","display_name":"Gamma-nonalactone","entity_type_key":"small_molecule"},"role":"context_participant","stoichiometry":null,"state_label":"","sequence_order":2,"notes":""},{"entity":{"id":"44366bfb-222d-5da6-911a-e853c3d7cdb7","slug":"human-trpa1","display_name":"Human TRPA1 ion channel","entity_type_key":"protein"},"role":"context_participant","stoichiometry":null,"state_label":"","sequence_order":3,"notes":""},{"entity":{"id":"e359bc15-e675-5d83-b0fe-1d70814e130b","slug":"calcium-ion","display_name":"Calcium ion","entity_type_key":"ion"},"role":"context_participant","stoichiometry":null,"state_label":"","sequence_order":4,"notes":""}]},"contexts":[{"dimension":"availability_state","value_text":"machinery_impairment","comparator":null,"unit":null,"notes":"Imported condition classification; unverified.","entity":null},{"dimension":"dose","value_text":"Gamma-nonalactone 2 mM and EGTA 5 mM","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"duration","value_text":"Acute fluorescence assay","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"evidence_access","value_text":"Primary full-text methods/results inspected; PubMed metadata where indexed.","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"evidence_scope","value_text":"literature_reviewed; model-specific source-derived curation","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"experimental_model","value_text":"Human TRPV1 or TRPA1 expressed in HEK293 cells","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"limitations","value_text":"Experimental extracellular calcium removal is not dietary calcium deficiency. A calcium-flux readout cannot establish every downstream cellular consequence.","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"nutrient_topic","value_text":"Gamma-nonalactone flavor-compound chapter; nutrient and drug interactions retain their experimental settings.","comparator":null,"unit":null,"notes":"","entity":{"slug":"gamma-nonalactone","display_name":"Gamma-nonalactone","entity_type_key":"small_molecule"}},{"dimension":"organism","value_text":"Human TRPV1 or TRPA1 expressed in HEK293 cells","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"plain_language","value_text":"EGTA treatment suppressed the gamma-nonalactone-evoked TRPA1 calcium signal.","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"primary_references","value_text":"Agonistic/antagonistic properties of lactones in food flavors on the sensory ion channels TRPV1 and TRPA1. 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A calcium-flux readout cannot establish every downstream cellular consequence.\nPrimary reference: Agonistic/antagonistic properties of lactones in food flavors on the sensory ion channels TRPV1 and TRPA1. (2022). https://pubmed.ncbi.nlm.nih.gov/36374622/ DOI: 10.1093/chemse/bjac023\nAccess: Primary full-text methods/results inspected; PubMed metadata where indexed.","model_system":"Human TRPV1 or TRPA1 expressed in HEK293 cells","directness":"reported_statement","verification_status":"source_derived_draft","notes":"Exact original curation span with primary citation; not a publisher quotation.","relationship":"supports","weight":1.0,"link_notes":"","source":{"id":"73777c54-95a4-5b07-9d14-d4dd31949fb1","stable_key":"import-8600a864-6653-52c7-9718-1362c5af4577","title":"Gamma-nonalactone: mechanisms, molecular forms and cross-actor connections (2026-09-20)","document_type":"imported_text","citation_label":"Original AI-assisted curation of eight primary studies. Study-specific citations, negative findings and limitations retained. Not publisher full text.","file_path":"","sha256":"a6fede6fbb2b70669be6846626f9c197edfd605c627d50fffa984e2b0b7ed71d","revision_id":"bb5ac9d2-d97d-59ac-a99c-ddf46d535574","review_status":"unverified_draft","notes":""}}],"relations":[],"conflicts":[],"corrections":[],"research":null}