单词	flavin
释义	flavin /ˈfleɪvɪn / noun Biochemistry Any of a group of naturally occurring pigments including riboflavin. They have a tricyclic aromatic molecular structure.Cellular flavins and flavin adenine dinucleotides and mononucleotides exist mostly as cofactors for enzymes involved in oxidation-reduction reactions.... Studies performed on cultured mammalian cell lines demonstrate that most of the cell fluorescence arises from reduced pyridine nucleotides, flavins, and lipofuscin. Most studies of UVA and violet-blue light responses have implicated carotenoids and flavins as molecular photoreceptors. Origin Mid 19th century: from Latin flavus 'yellow' + -in1.
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