{"id":"5e6d035c-0db7-5877-8859-03362cbbd2a1","stable_key":"e1af6d55-ced5-56c9-9a2d-8cc2ae6ec3ff:nasunin-trans-identity","predicate":"includes_isomer","statement":"A trans-p-coumaroyl isomer was separately identified.","claim_class":"identity","status":"source_derived_draft","evidence_grade":"ungraded","direction":"context_dependent","is_public":true,"mechanism_event_id":"d808165b-f32d-5d0a-a9f3-9130606778d7","mechanism_event_label":"The trans form has its own database identity.","subject":{"id":"6553997f-f098-5507-95b4-0fdb8aac491d","slug":"nasunin","display_name":"Nasunin","entity_type_key":"small_molecule"},"object":{"id":"6c0572c8-5407-5192-b802-7f8c8be12293","slug":"trans-nasunin","display_name":"trans-Nasunin","entity_type_key":"small_molecule"},"evidence_count":1,"mechanism_event":{"id":"d808165b-f32d-5d0a-a9f3-9130606778d7","stable_key":"e1af6d55-ced5-56c9-9a2d-8cc2ae6ec3ff:nasunin-trans-identity-event","event_type":"biochemical_relationship","label":"The trans form has its own database identity.","description":"A trans-p-coumaroyl isomer was separately identified.","status":"provisional","compartment":null,"participants":[{"entity":{"id":"6553997f-f098-5507-95b4-0fdb8aac491d","slug":"nasunin","display_name":"Nasunin","entity_type_key":"small_molecule"},"role":"subject","stoichiometry":null,"state_label":"","sequence_order":0,"notes":""},{"entity":{"id":"6c0572c8-5407-5192-b802-7f8c8be12293","slug":"trans-nasunin","display_name":"trans-Nasunin","entity_type_key":"small_molecule"},"role":"target","stoichiometry":null,"state_label":"","sequence_order":1,"notes":""}]},"contexts":[{"dimension":"evidence_span","value_text":"{\"source_cache\": \"artifacts/nasunin-research/16302764.abstract.txt\", \"locator\": \"Primary indexed abstract; zero-based, end-exclusive Unicode character offsets\", \"file_sha256\": \"4a79be9e5b34aba2c189fcde3f22fe9142f8b87408f33caeefc9283841ec894e\", \"start_char\": 0, \"end_char\": 759, \"text_sha256\": \"4a79be9e5b34aba2c189fcde3f22fe9142f8b87408f33caeefc9283841ec894e\"}","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"experimental_model","value_text":"Purification, mass spectrometry and NMR","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"exposure","value_text":"Acidified methanolic extract; room-light exposure","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"limitations","value_text":"Cis/trans refers to the p-coumaroyl moiety. Interconversion during handling can change the tested preparation; this is not human metabolism.","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"nutrient_topic","value_text":"Nasunin research collection; topical membership is not evidence of a direct dietary effect.","comparator":null,"unit":null,"notes":"","entity":{"slug":"nasunin","display_name":"Nasunin","entity_type_key":"small_molecule"}},{"dimension":"organism","value_text":"Solanum melongena","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"plain_language","value_text":"The trans form has its own database identity.","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"primary_references","value_text":"[nasunin-p16302764] Nasunin from eggplant consists of cis-trans isomers of delphinidin 3-[4-(p-coumaroyl)-L-rhamnosyl (1-->6)glucopyranoside]-5-glucopyranoside. (2005). https://pubmed.ncbi.nlm.nih.gov/16302764/ DOI: 10.1021/jf051841y","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"tissue_or_cell_type","value_text":"Eggplant peel pigments","comparator":null,"unit":null,"notes":"","entity":null}],"evidence":[{"id":"0fce6e64-26a3-5c91-9e80-b01a73e04647","evidence_kind":"source_excerpt","locator":"Lines 107-118","start_line":107,"end_line":118,"excerpt":"### nasunin-trans-identity\nA trans-p-coumaroyl isomer was separately identified.\nCondition category: normal\nnutrient_topic: Nasunin research collection; topical membership is not evidence of a direct dietary effect.\nplain_language: The trans form has its own database identity.\norganism: Solanum melongena\ntissue_or_cell_type: Eggplant peel pigments\nexperimental_model: Purification, mass spectrometry and NMR\nlimitations: Cis/trans refers to the p-coumaroyl moiety. Interconversion during handling can change the tested preparation; this is not human metabolism.\nexposure: Acidified methanolic extract; room-light exposure\nevidence_span: {\"source_cache\": \"artifacts/nasunin-research/16302764.abstract.txt\", \"locator\": \"Primary indexed abstract; zero-based, end-exclusive Unicode character offsets\", \"file_sha256\": \"4a79be9e5b34aba2c189fcde3f22fe9142f8b87408f33caeefc9283841ec894e\", \"start_char\": 0, \"end_char\": 759, \"text_sha256\": \"4a79be9e5b34aba2c189fcde3f22fe9142f8b87408f33caeefc9283841ec894e\"}\n[nasunin-p16302764] Nasunin from eggplant consists of cis-trans isomers of delphinidin 3-[4-(p-coumaroyl)-L-rhamnosyl (1-->6)glucopyranoside]-5-glucopyranoside. (2005). https://pubmed.ncbi.nlm.nih.gov/16302764/ DOI: 10.1021/jf051841y","model_system":"Purification, mass spectrometry and NMR","directness":"author_interpretation","verification_status":"source_derived_draft","notes":"Exact curation-document quotation, not publisher quotation. Study references: [nasunin-p16302764] Nasunin from eggplant consists of cis-trans isomers of delphinidin 3-[4-(p-coumaroyl)-L-rhamnosyl (1-->6)glucopyranoside]-5-glucopyranoside. (2005). https://pubmed.ncbi.nlm.nih.gov/16302764/ DOI: 10.1021/jf051841y","relationship":"supports","weight":1.0,"link_notes":"","source":{"id":"2c43df19-ccb0-58f1-b9a4-bc92cda6de5a","stable_key":"import-e1af6d55-ced5-56c9-9a2d-8cc2ae6ec3ff","title":"Nasunin: identity, redox chemistry and nutrient connections (2026-09-17)","document_type":"imported_text","citation_label":"AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text.","file_path":"","sha256":"56552c208433294bf9a6c95513d981dbe4d00fd8336c121816d7b8bd6604d50e","revision_id":"b0296d49-32d7-52dc-a23c-5e862da0fba3","review_status":"unverified_draft","notes":""}}],"relations":[],"conflicts":[],"corrections":[],"research":null}