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D-serine ammonia-lyase

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D-serine ammonia-lyase
Identifiers
EC no.4.3.1.18
CAS no.9015-88-7
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
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NCBIproteins

The enzyme D-serine ammonia-lyase (EC 4.3.1.18), with systematic name D-serine ammonia-lyase (pyruvate-forming), catalyzes the chemical reaction

D-serine = pyruvate + NH3 (overall reaction)
(1a) D-serine = 2-aminoprop-2-enoate + H2O
(1b) 2-aminoprop-2-enoate = 2-iminopropanoate (spontaneous)
(1c) 2-iminopropanoate + H2O = pyruvate + NH3 (spontaneous

Other names in common use include D-hydroxyaminoacid dehydratase, D-serine dehydrase, D-hydroxy amino acid dehydratase, D-serine hydrolase, D-serine dehydratase (deaminating), D-serine deaminase, and D-serine hydro-lyase (deaminating). This enzyme participates in glycine, serine and threonine metabolism. It employs one cofactor, pyridoxal phosphate.

References

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  • Dupourque D, Newton WA, Snell EE (1966). "Purification and properties of D-serine dehydrase from Escherichia coli". J. Biol. Chem. 241 (5): 1233–8. PMID 5327100.
  • METZLER DE, SNELL EE (1952). "Deamination of serine. II. D-Serine dehydrase, a vitamin B6 enzyme from Escherichia coli". J. Biol. Chem. 198 (1): 363–73. PMID 12999751.