ID 4.3.1.13 DE carbamoyl-serine ammonia-lyase. AN O-carbamoyl-L-serine deaminase. CA H(+) + H2O + O-carbamoyl-L-serine = CO2 + 2 NH4(+) + pyruvate. CC -!- The enzyme cleaves a carbon-oxygen bond, releasing CO2, ammonia, CC and an unstable enamine product that tautomerizes to an imine form, CC which undergoes a hydrolytic deamination to form pyruvate and a CC second ammonia molecule. CC -!- The latter reaction, which can occur spontaneously, can also be CC catalyzed by EC 3.5.99.10. //