4-hydroxyproline epimerase

4-hydroxyproline epimerase
Identifiers
EC number	5.1.1.8
CAS number	9024-23-1
Databases
IntEnz	IntEnz view
BRENDA	BRENDA entry
ExPASy	NiceZyme view
KEGG	KEGG entry
MetaCyc	metabolic pathway
PRIAM	profile
PDB structures	RCSB PDB PDBe PDBsum
Gene Ontology	AmiGO / EGO
Search PMC articles PubMed articles NCBI proteins

In enzymology, a 4-hydroxyproline epimerase (EC 5.1.1.8) is an enzyme that catalyzes the chemical reaction

trans-4-hydroxy-L-proline $\rightleftharpoons$ cis-4-hydroxy-D-proline

Hence, this enzyme has one substrate, trans-4-hydroxy-L-proline, and one product, cis-4-hydroxy-D-proline.

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 4-hydroxyproline 2-epimerase. Other names in common use include hydroxyproline epimerase, hydroxyproline 2-epimerase, and L-hydroxyproline epimerase. This enzyme participates in arginine and proline metabolism.

References

• Adams E and Norton IL (1964). "Purification and properties of inducible hydroxyproline 2-epimerase from Pseudomonas". J. Biol. Chem. 239: 1525–1535. PMID 14189888.