PIGW

Entrez Summary: The protein encoded by this gene is an inositol acyltransferase that acylates the inositol ring of phosphatidylinositol. This occurs in the endoplasmic reticulum and is a step in the biosynthesis of glycosylphosphatidylinositol (GPI), which anchors many cell surface proteins to the membrane. Defects in this gene are a cause of the age-dependent epileptic encephalopathy West syndrome as well as a syndrome exhibiting hyperphosphatasia and cognitive disability (HPMRS5). [provided by RefSeq, Jul 2017].
UniProt Summary: Required for the transport of GPI-anchored proteins to the plasma membrane (PubMed:24367057). Probable acetyltransferase, which acetylates the inositol ring of phosphatidylinositol during biosynthesis of GPI-anchor. Acetylation during GPI-anchor biosynthesis is not essential for the subsequent mannosylation and is usually removed soon after the attachment of GPIs to proteins (By similarity). {ECO:0000250|UniProtKB:Q7TSN4, ECO:0000269|PubMed:24367057}.

Pfam Domains GO Terms

Compound Hit Most Correlated Genes in Chemogenomics Tissues where Essential in the Avana Dataset (DepMap 20Q1)

Global Fraction of Cell Lines Where Essential: 0/739

Tissue	Fraction Of Cell Lines Where Essential
1290807.0	0/1
909776.0	0/1
bile duct	0/28
blood	0/28
bone	0/26
breast	0/33
central nervous system	0/56
cervix	0/4
colorectal	0/17
esophagus	0/13
fibroblast	0/1
gastric	0/16
kidney	0/21
liver	0/20
lung	0/75
lymphocyte	0/16
ovary	0/26
pancreas	0/24
peripheral nervous system	0/16
plasma cell	0/15
prostate	0/1
skin	0/24
soft tissue	0/9
thyroid	0/2
upper aerodigestive	0/22
urinary tract	0/29
uterus	0/5

Expression Distribution

glucosaminyl-phosphatidylinositol O-acyltransferase activity
O-acyltransferase activity
preassembly of GPI anchor in ER membrane
GPI anchor biosynthetic process
GPI anchor metabolic process
glycolipid biosynthetic process
protein lipidation
lipoprotein biosynthetic process
glycolipid metabolic process
phosphatidylinositol biosynthetic process
liposaccharide metabolic process
lipoprotein metabolic process
membrane lipid biosynthetic process
phosphatidylinositol metabolic process
protein localization to plasma membrane
membrane lipid metabolic process
glycerophospholipid biosynthetic process
glycerolipid biosynthetic process
protein localization to cell periphery
phospholipid biosynthetic process
glycerophospholipid metabolic process
phospholipid metabolic process
glycerolipid metabolic process
protein localization to membrane
organophosphate biosynthetic process
lipid biosynthetic process
carbohydrate derivative biosynthetic process
organophosphate metabolic process
endoplasmic reticulum membrane
cellular lipid metabolic process
carbohydrate derivative metabolic process
lipid metabolic process
organonitrogen compound biosynthetic process
cellular protein localization
cellular macromolecule localization
cellular macromolecule biosynthetic process
macromolecule biosynthetic process