4.3.1.13: carbamoyl-serine ammonia-lyase

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For detailed information about carbamoyl-serine ammonia-lyase, go to the full flat file.

Reaction

Synonyms

ammonia-lyase, carbamoylserine, carbamoylserine deaminase, O-carbamoyl-L-serine deaminase, O-carbamoyl-L-serine deaminase (OCS)

ECTree

     4 Lyases

         4.3 Carbon-nitrogen lyases

             4.3.1 Ammonia-lyases

                4.3.1.13 carbamoyl-serine ammonia-lyase

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Systematic Name

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Systematic Name on EC 4.3.1.13 - carbamoyl-serine ammonia-lyase

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SYSTEMATIC NAME

IUBMB Comments

O-carbamoyl-L-serine ammonia-lyase (decarboxylating; pyruvate-forming)

A pyridoxal-phosphate protein. The enzyme cleaves a carbon-oxygen bond, releasing CO2, ammonia, and an unstable enamine product that tautomerizes to an imine form, which undergoes a hydrolytic deamination to form pyruvate and a second ammonia molecule. The latter reaction, which can occur spontaneously, can also be catalysed by EC 3.5.99.10, 2-iminobutanoate/2-iminopropanoate deaminase.