Retinyl-palmitate esterase

In enzymology, a retinyl-palmitate esterase (EC 3.1.1.21) is an enzyme that catalyzes the chemical reaction.

retinyl palmitate + H₂O ${\displaystyle \rightleftharpoons }$ retinol + palmitate

retinyl-palmitate esterase
Identifiers
EC no.	3.1.1.21
CAS no.	9063-69-8
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 / QuickGO
Search PMC articles PubMed articles NCBI proteins

Thus, the two substrates of this enzyme are retinyl palmitate and H₂O, whereas its two products are retinol and palmitate.

This enzyme belongs to the family of hydrolases, specifically those acting on carboxylic ester bonds. The systematic name of this enzyme class is retinyl-palmitate palmitohydrolase. Other names in common use include retinyl palmitate hydrolase, retinyl palmitate hydrolyase, and retinyl ester hydrolase. This enzyme participates in retinol metabolism.