PPCDC produced in E.Coli is a single, non-glycosylated polypeptide chain containing224 amino acids (1-204a.a.) and having a molecular mass of 24.6kDa.PPCDC is fused to a 20 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.
PPCDC is a member of the HFCD (homo oligomeric flavin containing Cys decarboxylase) superfamily which takes a part in the biosynthesis of coenzyme A (CoA) from pantothenate (Vitamin B). The biosynthesis of CoA from pantothenate needs several steps: the phosphorylation of pantothenate, the conversion of 4’-hosphopantothenate to 4''-phosphopantetheine, the adenylation by phosphopantetheine adenylyltransferase to form dephospho-CoA and the phosphorylation by dephospho-CoA kinase to form CoA. PPCDC is a key player in this pathway. PPCDC converts 4''-phosphopantothenate into 4''-phosphopantetheine.