Article · Wikipedia archive · Last revised Jun 14, 2026

4-hydroxyproline epimerase

In enzymology, a 4-hydroxyproline epimerase is an enzyme that catalyzes the chemical reactiontrans-4-hydroxy-L-proline cis-4-hydroxy-D-proline

Last revised
Jun 14, 2026
Read time
≈ 1 min
Length
126 w
Citations
Source
4-hydroxyproline epimerase
Identifiers
EC no.5.1.1.8
CAS no.9024-23-1
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
Search
PMCarticles
PubMedarticles
NCBIproteins

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

trans-4-hydroxy-L-proline {\displaystyle \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

References