Source:http://linkedlifedata.com/resource/umls/id/C1158327
GO: 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]