Function
Ornithine carbamoyltransferase (OTC) catalyzes the conversion of carbamoyl phosphate (CP) and ornithine to citrulline and phosphate. OTC is part of the arginine biosynthesis in plants and bacteria and part of the urea cycle in mammals[1]. Norvaline is a competitive inhibitor of OTC. The anabolic OTC catalyzes the citrulline synthesis while the catabolic OTC catalyzes the citrulline phosphorolysis.
For details see Sanbox Reserved 684.
Disease
OTC deficiency is a genetic urea cycle disorder[2].
Structural highlights
The biological assembly of OTC is . OTC structure contains an . OCT [3].
3D structures of ornithine carbamoyltransferase
Ornithine carbamoyltransferase 3D structures