In enzymology, an ornithine racemase (EC 5.1.1.12) is an enzyme that catalyzes the chemical reaction:

ornithine racemase
Identifiers
EC no.5.1.1.12
CAS no.62213-28-9
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
Search
PMCarticles
PubMedarticles
NCBIproteins
L-ornithine D-ornithine

Hence, this enzyme has one substrate, L-ornithine, and one product, D-ornithine.

This enzyme belongs to the family of isomerases, specifically those racemases and epimerases acting on amino acids and derivatives. The systematic name of this enzyme class is ornithine racemase. This enzyme participates in d-arginine and d-ornithine metabolism.

References

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  • Chen HP, Lin CF, Lee YJ, Tsay SS, Wu SH (2000). "Purification and properties of ornithine racemase from Clostridium sticklandii". J. Bacteriol. 182 (7): 2052–4. doi:10.1128/JB.182.7.2052-2054.2000. PMC 101933. PMID 10715017.