PIGB Gene Summary [Human]
This gene encodes a transmembrane protein that is located in the endoplasmic reticulum and is involved in GPI-anchor biosynthesis. The glycosylphosphatidylinositol (GPI) anchor is a glycolipid found on many blood cells and serves to anchor proteins to the cell surface. This gene is thought to encode a member of a family of dolichol-phosphate-mannose (Dol-P-Man) dependent mannosyltransferases. [provided by RefSeq, Jul 2008]
Details
| Type | Nonsense Mediated Decay |
| Official Symbol | PIGB |
| Official Name | phosphatidylinositol glycan anchor biosynthesis class B [Source:HGNC Symbol;Acc:HGNC:8959] |
| Ensembl ID | ENSG00000069943 |
| Bio databases IDs | |
| Aliases | phosphatidylinositol glycan anchor biosynthesis class B, GPI mannosyltransferase 3, dol-P-Man dependent GPI mannosyltransferase |
| Synonyms | DEE80, EIEE80, GPI-MT-III, phosphatidylinositol glycan anchor biosynthesis class B, phosphatidylinositol glycan anchor biosynthesis, class B |
| Species | Human, Homo sapiens |
| Orthologies |
Protein Domains
A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in human PIGB often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
- Alg9-like mannosyltransferase family
- mannosyltransferase
- enzyme
- glycolipid mannosyltransferase
- alpha-1,2-mannosyltransferase
- dolichyl-phosphate-mannose-protein mannosyltransferase
Subcellular Expression
Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
- Cytoplasm
- endoplasmic reticulum membrane
Gene Ontology Annotations
Describes the biological processes, cellular components, and molecular functions associated with the human PIGB gene, providing context for its role in the cell.
Biological Process
Functions and activities the gene product is involved in
- GPI anchor biosynthetic process
- preassembly of GPI anchor in ER membrane
Cellular Component
Where in the cell the gene product is active
- endoplasmic reticulum membrane
- membrane
Molecular Function
What the gene product does at the molecular level
- mannosyltransferase activity
- alpha-1,2-mannosyltransferase activity
- glycolipid mannosyltransferase activity