Entry
Name
omega-hydroxyceramide transacylase;
PNPLA1 (gene name)
Class
Transferases;
Acyltransferases;
Transferring groups other than aminoacyl groups
BRITE hierarchy
Sysname
triacyl-sn-glycerol:ultra-long-chain omega-hydroxyceramide omega-O-linoleoyltransferase
Reaction(IUBMB)
a linoleate-containing triacyl-sn-glycerol + an ultra-long-chain omega-hydroxyceramide = a diacyl-sn-glycerol + a linoleate-esterified acylceramide
Substrate
linoleate-containing triacyl-sn-glycerol;
ultra-long-chain omega-hydroxyceramide
Product
diacyl-sn-glycerol;
linoleate-esterified acylceramide
Comment
The enzyme participates in the production of acylceramides in the stratum corneum, the outermost layer of the epidermis. Acylceramides are crucial components of the skin permeability barrier.
History
EC 2.3.1.296 created 2019
Orthology
K16813 omega-hydroxyceramide transacylase
Genes
PCOC : 116236969 116236970(PNPLA1)
MGP : 100542403 100542559(PNPLA1)
CJO : 107324687(PNPLA1) 107324688
TPAI : 128087973(PNPLA1) 128088193
NMEL : 110388084 110388095(PNPLA1)
TGU : 100225038(PNPLA1) 115498565
SCAN : 103822414(PNPLA1) 108963115
OTC : 121345513(PNPLA1) 121345514
GFR : 102032738 102041930(PNPLA1)
FAB : 101809281(PNPLA1) 101817044
PHI : 102109501 102113209(PNPLA1)
PMAJ : 107214760 107215020(PNPLA1)
CCAE : 111939875(PNPLA1) 111939878
CCW : 104692425(PNPLA1) 109145293
ACOE : 138098775 138098777(PNPLA1) 138098954
HRT : 120762871(PNPLA1) 120762965
SHAB : 115602465 115602466
PADL : 103925952 103925953(PNPLA1)
CLV : 102097663(PNPLA1) 110364654
BREG : 104640222 104640223
ASN : 102381144 102381898 102387352 102387599 112550535
CPOO : 109317520 109317522
CCAY : 125624991 125624993
CPIC : 101931701 101931995
CABI : 116839152 116839161
XLA : 108708055(pnpla1.L) 108709386(pnpla1.S)
BGAR : 122931630 122933399
» show all
Taxonomy
Reference
Authors
Ohno Y, Kamiyama N, Nakamichi S, Kihara A
Title
PNPLA1 is a transacylase essential for the generation of the skin barrier lipid omega-O-acylceramide.
Journal
Sequence
Other DBs
ExPASy - ENZYME nomenclature database: 2.3.1.296