This domain is found in Propionyl-coenzyme A carboxylase (PCC), present in Roseobacter denitrificans. PCC is a mitochondrial biotin-dependent enzyme that is essential for the catabolism of certain amino acids, cholesterol, and fatty acids with an odd ...
This domain is found in Propionyl-coenzyme A carboxylase (PCC), present in Roseobacter denitrificans. PCC is a mitochondrial biotin-dependent enzyme that is essential for the catabolism of certain amino acids, cholesterol, and fatty acids with an odd number of carbon atoms. Since this domain mediates biotin carboxylase-carboxyltransferase interactions it is referred to as the BT domain. The BT domain is located between biotin carboxylase and the biotin carboxyl carrier protein domains. The BT domain shares some structural similarity with the pyruvate carboxylase tetramerization domain of pyruvate carboxylase [1].
This family covers two Prosite entries, the conserved lysine residue binds biotin in one group and lipoic acid in the other. Note that the HMM does not currently recognise the Glycine cleavage system H proteins.
Carbamoyl-phosphate synthase L chain, ATP binding domain
Carbamoyl-phosphate synthase catalyses the ATP-dependent synthesis of carbamyl-phosphate from glutamine or ammonia and bicarbonate. This important enzyme initiates both the urea cycle and the biosynthesis of arginine and/or pyrimidines [2]. The c ...
Carbamoyl-phosphate synthase catalyses the ATP-dependent synthesis of carbamyl-phosphate from glutamine or ammonia and bicarbonate. This important enzyme initiates both the urea cycle and the biosynthesis of arginine and/or pyrimidines [2]. The carbamoyl-phosphate synthase (CPS) enzyme in prokaryotes is a heterodimer of a small and large chain. The small chain promotes the hydrolysis of glutamine to ammonia, which is used by the large chain to synthesise carbamoyl phosphate. See Pfam:PF00988. The small chain has a GATase domain in the carboxyl terminus. See Pfam:PF00117. The ATP binding domain (this one) has an ATP-grasp fold.
Biotin carboxylase is a component of the acetyl-CoA carboxylase multi-component enzyme which catalyses the first committed step in fatty acid synthesis in animals, plants and bacteria. Most of the active site residues reported in reference [1] are i ...
Biotin carboxylase is a component of the acetyl-CoA carboxylase multi-component enzyme which catalyses the first committed step in fatty acid synthesis in animals, plants and bacteria. Most of the active site residues reported in reference [1] are in this C-terminal domain.
This domain is structurally related to the PreATP-grasp domain. The family contains the N-terminus of biotin carboxylase enzymes [1,3], and propionyl-CoA carboxylase A chain [2].