Collated Gene Ontology terms

Biological process: phosphatidylinositol N-acetylglucosaminyltransferase activity(2006, 2014, 2021, 2025) glycosyltransferase activity(2014, 2022, 2025) transferase activity(2010, 2025) catalytic activity(2007) acyltransferase activity(2025) UDP-glycosyltransferase activity(2020) 1-acylglycerol-3-phosphate O-acyltransferase activity(2025)

Molecular function: GPI anchor biosynthetic process2006, 2007, 2010, 2011, 2014, 2021, 2025 lipid metabolic process2025 pollen tube growth2017, 2025 pollen germination2017, 2025 fungal-type cell wall organization2024 cellular response to leukemia inhibitory factor2017 phospholipid biosynthetic process2025

Cellular component: glycosylphosphatidylinositol-N-acetylglucosaminyltransferase (GPI-GnT) complex2006, 2021, 2024, 2025 endoplasmic reticulum membrane2006, 2013, 2024, 2025 endoplasmic reticulum2013, 2014, 2025 membrane2014, 2025 rough endoplasmic reticulum membrane2025 nucleus2018 cytosol2018 cytoplasm2017

Phylogenetic distribution

Chordates: 21/21 
Echinoderms: 0/0 
Hemichordates: 1/1 
Annelids: 1/1 
Molluscs: 0/0 
Bryozoans: 0/0 
Platyhelminthes: 0/0 
Rotifers: 0/0 
Nematodes: 3/3 
Arthropods: 5/5 
Tardigrades: 0/0 
Placozoa: 1/1 
Cnidaria: 1/1 
Porifera: 0/0 
Choanoflagellates+: 15/1 
Dikarya: 0/14 
Fungi (other): 0/1 
Protozoa: 3/3 
Excavates: 3/4 
Harosa: 4/4 
Hacrobia: 0/0 
Plants: 37/39 
Archea: 1/8 
Bacteria: 3/35 

Find a cluster

Protein ID:
UniProt ID, accession, gene name or model org. database name
Cluster ID:
e.g. "UKP00123" or "123"

Download

Protein sequences (FASTA format)

Knownness history

2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 0 2 4 6 8 10 Knownness

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Proteins

UniProt ID
Organism DB»		 Standard knownness clustom knownness Gene name Description Species  [Show all] GO terms Seq. links Protein domain links
A0A8I6ADP6_RAT
RGD»
1.0
Piga phosphatidylinositol N-acetylglucosaminyltransferase (EC
2.4.1.198) (GlcNAc-PI synthesis protein)		 Rattus norvegicus
TI:10116 None
   
A0A8V0X988_CHICK
Ensembl»
1.0
PIGA Phosphatidylinositol N-acetylglucosaminyltransferase subunit A (EC 2.4.1.198) (GlcNAc-PI
synthesis protein) (Phosphatidylinositol-glycan biosynthesis class A protein)		 Gallus gallus
TI:9031 None
   
B0S6Z8_DANRE
ZFIN»
1.0
piga Phosphatidylinositol N-acetylglucosaminyltransferase subunit A (EC 2.4.1.198) (GlcNAc-PI
synthesis protein) (Phosphatidylinositol-glycan biosynthesis class A protein)		 Danio rerio
TI:7955 None
 
GPI3_SCHPO
PomBase»
1.6
gpi3 Phosphatidylinositol N-acetylglucosaminyltransferase gpi3 subunit
(EC 2.4.1.198) (GlcNAc-PI synthesis protein)		 Schizosaccharomyces pombe
TI:4896 None
 
GPI3_YEAST
SGD»
3.4
SPT14 Phosphatidylinositol N-acetylglucosaminyltransferase GPI3 subunit (GPI-GlcNAc transferase complex subunit
GPI3) (GPI-GnT subunit GPI3) (EC 2.4.1.198) (GlcNAc-PI synthesis protein)		 Saccharomyces cerevisiae
TI:4932 None
 
PIGA_ARATH
TAIR»
2.6
PIGA Phosphatidylinositol N-acetylglucosaminyltransferase subunit A (EC 2.4.1.198) (GlcNAc-PI
synthesis protein) (Phosphatidylinositol-glycan biosynthesis class A protein)		 Arabidopsis thaliana
TI:3702 None
 
PIGA_HUMAN
Ensembl»
3.7
PIGA Phosphatidylinositol N-acetylglucosaminyltransferase subunit A (EC 2.4.1.198) (GlcNAc-PI
synthesis protein) (Phosphatidylinositol-glycan biosynthesis class A protein) (PIG-A)		 Homo sapiens
TI:9606 None
 
PIGA_MOUSE
Ensembl»
2.6
Piga Phosphatidylinositol N-acetylglucosaminyltransferase subunit A (EC 2.4.1.198) (GlcNAc-PI
synthesis protein) (Phosphatidylinositol-glycan biosynthesis class A protein) (PIG-A)		 Mus musculus
TI:10090 None
 
Q18993_CAEEL
WormBase»
1.0
piga-1 PIGA GPI anchor
biosynthesis domain-containing protein		 Caenorhabditis elegans
TI:6239 None
 
Q54QB2_DICDI
dictyBase»
1.0
pigA phosphatidylinositol N-acetylglucosaminyltransferase (EC
2.4.1.198) (GlcNAc-PI synthesis protein)		 Dictyostelium discoideum
TI:44689 None
 
Q7JUM3_DROME
FlyBase»
2.0
PIG-A phosphatidylinositol N-acetylglucosaminyltransferase (EC
2.4.1.198) (GlcNAc-PI synthesis protein)		 Drosophila melanogaster
TI:7227 None