. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "carb_ecoli"^^ . "pyrA"^^ . "Carbamoyl-phosphate synthetase ammonia chain"^^ . "b0033"^^ . "JW0031"^^ . "carB"^^ . . . "Carbamoyl-phosphate synthase large chain"^^ .