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This gene encodes a protein required for synthesis of N-acetylglucosaminyl phosphatidylinositol (GlcNAc-PI), the first intermediate in the biosynthetic pathway of GPI anchor. The GPI anchor is a glycolipid found on many blood cells and which serves to anchor proteins to the cell surface. Paroxysmal nocturnal hemoglobinuria, an acquired hematologic disorder, has been shown to result from mutations in this gene. Alternate splice variants have been characterized. A related pseudogene is located on chromosome 12. [provided by RefSeq, Jun 2010]
PIGA (Phosphatidylinositol Glycan Anchor Biosynthesis Class A) is a Protein Coding gene. Diseases associated with PIGA include Multiple Congenital Anomalies-Hypotonia-Seizures Syndrome 2 and Paroxysmal Nocturnal Hemoglobinuria 1. Among its related pathways are Glycosylphosphatidylinositol (GPI)-anchor biosynthesis and Metabolism of proteins. Gene Ontology (GO) annotations related to this gene include phosphatidylinositol N-acetylglucosaminyltransferase activity and UDP-glycosyltransferase activity. An important paralog of this gene is ALG11.
GO ID | Qualified GO term | Evidence | PubMed IDs |
---|---|---|---|
GO:0005515 | protein binding | IPI | 16162815 |
GO:0008194 | UDP-glycosyltransferase activity | TAS | -- |
GO:0016740 | transferase activity | IEA | -- |
GO:0016757 | transferase activity, transferring glycosyl groups | IEA | -- |
GO:0017176 | phosphatidylinositol N-acetylglucosaminyltransferase activity | IBA,TAS | 16162815 |
GO ID | Qualified GO term | Evidence | PubMed IDs |
---|---|---|---|
GO:0000506 | glycosylphosphatidylinositol-N-acetylglucosaminyltransferase (GPI-GnT) complex | IBA,IDA | 16162815 |
GO:0005783 | endoplasmic reticulum | IEA | -- |
GO:0005789 | endoplasmic reticulum membrane | IDA,TAS | -- |
GO:0016020 | membrane | IEA,HDA | 19946888 |
GO:0016021 | integral component of membrane | IEA | -- |
SuperPathway | Contained pathways | ||
---|---|---|---|
1 | Glycosylphosphatidylinositol (GPI)-anchor biosynthesis | ||
2 | Metabolism of proteins | ||
3 | Metabolism | ||
4 | Post-translational modification- synthesis of GPI-anchored proteins |
GO ID | Qualified GO term | Evidence | PubMed IDs |
---|---|---|---|
GO:0006506 | GPI anchor biosynthetic process | IEA,TAS | 16162815 |
GO:0009893 | positive regulation of metabolic process | TAS | 16162815 |
GO:0016254 | preassembly of GPI anchor in ER membrane | TAS | -- |
GO:1990830 | cellular response to leukemia inhibitory factor | IEA | -- |
Name | Status | Disease Links | Group | Role | Mechanism of Action | Clinical Trials |
---|---|---|---|---|---|---|
Phytosphingosine | Experimental | Pharma | 0 | |||
Sphingosine | Experimental | Pharma | 0 | |||
Uridine 5'-diphosphate | Experimental | Pharma | 0 | |||
sphinganine | Pharma | 0 | ||||
Sphingosine-1-phosphate | Pharma | Agonist, Full agonist | endogenous second messenger and ligand for S1PR1, Endogenous agonist at S1P1-5 | 0 |
Name | Synonyms | Role | CAS Number | PubChem IDs | PubMed IDs | |
---|---|---|---|---|---|---|
3-Dehydrosphinganine |
|
16105-69-4 |
|
|||
3-O-Sulfogalactosylceramide (d18:1/12:0) |
|
852100-88-0 |
|
|||
3-O-Sulfogalactosylceramide (d18:1/14:0) |
|
|
||||
3-O-Sulfogalactosylceramide (d18:1/16:0) |
|
862509-48-6 |
|
|||
3-O-Sulfogalactosylceramide (d18:1/18:0) |
|
244215-65-4 |
|
ExUns: | 1 | ^ | 2a | · | 2b | ^ | 3a | · | 3b | · | 3c | ^ | 4 | ^ | 5a | · | 5b | ^ | 6a | · | 6b |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SP1: | - | - | - | - | |||||||||||||||||
SP2: | - | - | |||||||||||||||||||
SP3: | - | - | - | ||||||||||||||||||
SP4: | - | - | - | - | |||||||||||||||||
SP5: | - | ||||||||||||||||||||
SP6: | - | - | - |
This gene was present in the common ancestor of eukaryotes.
Organism | Taxonomy | Gene | Similarity | Type | Details |
---|---|---|---|---|---|
Chimpanzee (Pan troglodytes) |
Mammalia | PIGA 30 31 |
|
OneToOne | |
Cow (Bos Taurus) |
Mammalia | PIGA 30 31 |
|
OneToOne | |
Dog (Canis familiaris) |
Mammalia | PIGA 30 31 |
|
OneToOne | |
Oppossum (Monodelphis domestica) |
Mammalia | PIGA 31 |
|
OneToOne | |
Mouse (Mus musculus) |
Mammalia | Piga 30 17 31 |
|
OneToOne | |
Rat (Rattus norvegicus) |
Mammalia | Piga 30 |
|
||
Platypus (Ornithorhynchus anatinus) |
Mammalia | PIGA 31 |
|
OneToOne | |
Chicken (Gallus gallus) |
Aves | PIGA 30 31 |
|
OneToOne | |
Lizard (Anolis carolinensis) |
Reptilia | PIGA 31 |
|
OneToOne | |
Tropical Clawed Frog (Silurana tropicalis) |
Amphibia | piga 30 |
|
||
African clawed frog (Xenopus laevis) |
Amphibia | Xl.16573 30 |
|
||
Zebrafish (Danio rerio) |
Actinopterygii | piga 30 31 |
|
OneToOne | |
zgc56589 30 |
|
||||
African malaria mosquito (Anopheles gambiae) |
Insecta | AgaP_AGAP011274 30 |
|
||
Fruit Fly (Drosophila melanogaster) |
Insecta | CG6401 30 31 32 |
|
OneToOne | |
Worm (Caenorhabditis elegans) |
Secernentea | piga-1 30 31 |
|
OneToOne | |
D2085.6 32 |
|
|
|||
K. Lactis Yeast (Kluyveromyces lactis) |
Saccharomycetes | KLLA0C09713g 30 |
|
||
Baker's yeast (Saccharomyces cerevisiae) |
Saccharomycetes | SPT14 30 31 33 |
|
OneToOne | |
A. gosspyii yeast (Eremothecium gossypii) |
Saccharomycetes | AGOS_AAL108C 30 |
|
||
Thale Cress (Arabidopsis thaliana) |
eudicotyledons | SETH2 30 |
|
||
Barley (Hordeum vulgare) |
Liliopsida | Hv.4393 30 |
|
||
Wheat (Triticum aestivum) |
Liliopsida | Ta.10118 30 |
|
||
Fission Yeast (Schizosaccharomyces pombe) |
Schizosaccharomycetes | gpi3 30 |
|
||
Sea Squirt (Ciona savignyi) |
Ascidiacea | -- 31 |
|
OneToOne | |
Bread mold (Neurospora crassa) |
Ascomycetes | NCU09757 30 |
|
||
Sea Vase (Ciona intestinalis) |
Ascidiacea | Cin.5861 30 |
|
SNP ID | Clinical significance and condition | Chr 0X pos | Variation | AA Info | Type |
---|---|---|---|---|---|
644227 | Benign: Multiple congenital anomalies-hypotonia-seizures syndrome 2 | 15,331,681(-) | T/C | MISSENSE_VARIANT,NON_CODING_TRANSCRIPT_VARIANT,INTRON_VARIANT | |
647223 | Uncertain Significance: Multiple congenital anomalies-hypotonia-seizures syndrome 2 | 15,331,211(-) | A/G | INTRON_VARIANT | |
653615 | Uncertain Significance: Multiple congenital anomalies-hypotonia-seizures syndrome 2 | 15,321,534(-) | T/C | MISSENSE_VARIANT,NON_CODING_TRANSCRIPT_VARIANT | |
655263 | Uncertain Significance: Multiple congenital anomalies-hypotonia-seizures syndrome 2 | 15,325,093(-) | T/G | MISSENSE_VARIANT,NON_CODING_TRANSCRIPT_VARIANT | |
655615 | Uncertain Significance: Multiple congenital anomalies-hypotonia-seizures syndrome 2 | 15,331,405(-) | A/C | MISSENSE_VARIANT,INTRON_VARIANT |
Disorder | Aliases | PubMed IDs |
---|---|---|
multiple congenital anomalies-hypotonia-seizures syndrome 2 |
|
|
paroxysmal nocturnal hemoglobinuria 1 |
|
|
paroxysmal nocturnal hemoglobinuria |
|
|
ferro-cerebro-cutaneous syndrome |
|
|
west syndrome |
|
|