[The chemical reactions and pathways involving biotin, cis-tetrahydro-2-oxothieno(3,4-d)imidazoline-4-valeric acid; the (+) enantiomer is very widely distributed in cells and serves as a carrier in a number of enzymatic beta-carboxylation reactions. [ISBN:0198506732 "Oxford Dictionary of Biochemistry and Molecular Biology"] ( GO )]
UMLS (NCI) C1158327Biotin Metabolism Pathway