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phosphatidylinositol N-acetylglucosaminyltransferase subunit Q; N-acetylglucosamyl transferase component GPI1; phosphatidylinositol-glycan biosynthesis class Q protein; PIG-Q (PIGQ GPI1)
Function:
- part of the complex catalyzing transfer of N-acetylglucosamine from UDP-N-acetylglucosamine to phosphatidylinositol, the 1st step of GPI biosynthesis
- glycolipid biosynthesis; GPI-anchor biosynthesis
- associates with PIGA, PIGC, PIGH, PIGP & DPM2
Structure: belongs to the PIGQ family
Compartment: membrane (putative)
Alternative splicing: named isoforms=3
General
glycoprotein
phosphatidylinositol-glycan biosynthesis protein (PIG-protein)
transmembrane 5 protein
Properties
SIZE: entity length = 760 aa
MW = 84 kD
COMPARTMENT: endoplasmic reticulum
MOTIF: transmembrane domain {278-298}
transmembrane domain {349-371}
transmembrane domain {378-400}
transmembrane domain {446-468}
transmembrane domain {475-497}
Database Correlations
OMIM 605754
UniProt Q9BRB3
Pfam PF05024
Entrez Gene 9091
Kegg hsa:9091
ENZYME 2.4.1.198
References
UniProt :accession Q9BRB3
Component-of
UDP-N-acetylglucosamine phosphatidylinositol transferase (GPI-GlcNAc transferase, GPI-GnT)