| Type: | Domain | Name: | Biotin carboxylase, C-terminal |
| Description: | Acetyl-CoA carboxylase is found in all animals, plants, and bacteria and catalyzes the first committed step in fatty acid synthesis. It is a multicomponent enzyme containing a biotin carboxylase activity, a biotin carboxyl carrier protein, and a carboxyltransferasefunctionality. The "B-domain" extends from the main body of the subunit where it folds into two alpha-helical regions and three strands of beta-sheet.Following the excursion into the B-domain, the polypeptide chain folds back into the body of the protein where it forms an eight-stranded antiparallel beta-sheet. In addition to this major secondary structural element, the C-terminal domain also contains asmaller three-stranded antiparallel beta-sheet and seven alpha-helices []. | Short Name: | Biotin_COase_C |
