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No human intake inference.","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"nutrient_topic","value_text":"Niacin research collection; topical membership is not evidence of a direct dietary effect.","comparator":null,"unit":null,"notes":"","entity":{"slug":"niacin","display_name":"Niacin (vitamin B3)","entity_type_key":"nutrient_element"}},{"dimension":"organism","value_text":"Ovis aries","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"plain_language","value_text":"NNT links the NADH and NADPH redox systems through membrane-coupled chemistry.","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"primary_references","value_text":"[nnt-structure-2019] Structure and mechanism of mitochondrial proton-translocating transhydrogenase. 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No human intake inference.\nexposure: Nucleotide-bound conformational states\nevidence_span: {\"source_cache\": \"artifacts/niacin-redox-sources/nnt-structure-2019.abstract.txt\", \"locator\": \"Indexed abstract, reaction and structural mechanism\", \"start_char\": 199, \"end_char\": 1759, \"file_sha256\": \"edb35c2cdf2f57d604cb86da48665e5742d398f43c50f3e1622d161564c78a83\", \"text_sha256\": \"aa5063e57c35097c2fa2557ed9a7d61c3a411d90d0ded9b947525012520a5712\"}\n[nnt-structure-2019] Structure and mechanism of mitochondrial proton-translocating transhydrogenase. (2019). https://pubmed.ncbi.nlm.nih.gov/31462775/ DOI: 10.1038/s41586-019-1519-2","model_system":"Cryo-EM of intact ovine NNT in different nucleotide states","directness":"author_interpretation","verification_status":"source_derived_draft","notes":"Exact curation-document quotation, not publisher quotation. Study references: [nnt-structure-2019] Structure and mechanism of mitochondrial proton-translocating transhydrogenase. 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