Biotin carboxyl carrier protein

'BCCP' redirects here. For the cricket board previously known as BCCP, see Pakistan Cricket Board.

The Biotin Carboxyl Carrier Protein is part of the enzyme Acetyl-CoA carboxylase and serves as a carrier protein for biotin and carboxybiotin throughout the ATP-dependent carboxylation of acetyl-CoA to form malonyl-CoA in the first committed and rate regulating step of fatty acid biosynthesis.