Characterization of a new flavin metabolite from human urine.
A new flavin metabolite comprising approximately 5% of the total flavin of human urine was isolated and characterized using absorption and fluorescence spectra, oxidation-reduction and hydrolysis data, and ninhydrin reactions. The flavin is a derivative associated with a peptide residue in ester linkage from an amino acid carboxyl to the ribityl chain of riboflavin, probably at the 5'-terminus.
Chastain
J L
JL
Department of Biochemistry, Emory University School of Medicine, Atlanta, GA 30322.
McCormick
D B
DB
D000328:Adult; D002851:Chromatography, High Pressure Liquid; D005415:Flavins / Q000652:urine*; D006801:Humans; D008297:Male; D013050:Spectrometry, Fluorescence
D005415:Flavins