PIGP

Subunit P of phosphatidylinositol N-acetylglucosaminyltransferase is an enzyme subunit that in humans is encoded by the PIGP gene.^[5][6][7]

AliasesPIGP, DCRC, DCRC-S, DSCR5, DSRC, PIG-P, phosphatidylinositol glycan anchor biosynthesis class P, EIEE55

External IDsOMIM: 605938; MGI: 1860433; HomoloGene: 32444; GeneCards: PIGP; OMA:PIGP - orthologs

Chr.Chromosome 21 (human)^[1]

End37,073,170 bp^[1]

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PIGP
Identifiers
Aliases	PIGP, DCRC, DCRC-S, DSCR5, DSRC, PIG-P, phosphatidylinositol glycan anchor biosynthesis class P, EIEE55
External IDs	OMIM: 605938; MGI: 1860433; HomoloGene: 32444; GeneCards: PIGP; OMA:PIGP - orthologs
Gene location (Human) Chr. Chromosome 21 (human)[1] Band 21q22.13 Start 37,059,170 bp[1] End 37,073,170 bp[1]
Gene location (Mouse) Chr. Chromosome 16 (mouse)[2] Band 16|16 C4 Start 94,159,622 bp[2] End 94,172,701 bp[2]
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in corpus epididymis Skeletal muscle tissue of biceps brachii tail of epididymis thoracic diaphragm myocardium retinal pigment epithelium vastus lateralis muscle caput epididymis bronchial epithelial cell myocardium of left ventricle Top expressed in quadriceps femoris muscle muscle tissue muscle of thigh skeletal muscle tissue zone of skin esophagus heart lens pancreas mesencephalon More reference expression data BioGPS More reference expression data
Gene ontology Molecular function transferase activity phosphatidylinositol N-acetylglucosaminyltransferase activity glycosyltransferase activity Cellular component integral component of membrane endoplasmic reticulum membrane glycosylphosphatidylinositol-N-acetylglucosaminyltransferase (GPI-GnT) complex membrane Biological process preassembly of GPI anchor in ER membrane GPI anchor biosynthetic process Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 51227 56176 Ensembl ENSG00000185808 ENSMUSG00000022940 UniProt P57054 Q9JHG1 RefSeq (mRNA) NM_153681 NM_153682 NM_001320480 NM_016430 NM_001159616 NM_001159617 NM_001159618 NM_001159619 NM_001159620 NM_019543 RefSeq (protein) NP_001307409 NP_057514 NP_710148 NP_710149 NP_001153088 NP_001153089 NP_001153090 NP_001153091 NP_001153092 NP_062416 Location (UCSC) Chr 21: 37.06 – 37.07 Mb Chr 16: 94.16 – 94.17 Mb PubMed search [3] [4]
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This gene encodes an enzyme involved in the first step of glycosylphosphatidylinositol (GPI)-anchor biosynthesis. The GPI anchor is a glycolipid found on many blood cells that serves to anchor proteins to the cell surface. The encoded protein is a component of the GPI-N-acetylglucosaminyltransferase complex that catalyzes the transfer of N-acetylglucosamine (GlcNAc) from UDP-GlcNAc to phosphatidylinositol (PI). This gene is located in the Down syndrome critical region on chromosome 21 and is a candidate for the pathogenesis of Down syndrome. Alternatively spliced transcript variants encoding different isoforms have been described.^[7]