Aliases for POFUT1 Gene
External Ids for POFUT1 Gene
Previous GeneCards Identifiers for POFUT1 Gene
This gene encodes a member of the glycosyltransferase O-Fuc family. This enzyme adds O-fucose through an O-glycosidic linkage to conserved serine or threonine residues in the epidermal growth factor-like repeats of a number of cell surface and secreted proteins. O-fucose glycans are involved in ligand-induced receptor signaling. Alternative splicing of this gene results in two transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008]
GeneCards Summary for POFUT1 Gene
POFUT1 (Protein O-Fucosyltransferase 1) is a Protein Coding gene. Diseases associated with POFUT1 include Dowling-Degos Disease 2 and Dowling-Degos Disease. Among its related pathways are Pre-NOTCH Expression and Processing and Signaling by GPCR. Gene Ontology (GO) annotations related to this gene include fucosyltransferase activity and peptide-O-fucosyltransferase activity.
UniProtKB/Swiss-Prot Summary for POFUT1 Gene
Catalyzes the reaction that attaches fucose through an O-glycosidic linkage to a conserved serine or threonine residue found in the consensus sequence C2-X(4,5)-[S/T]-C3 of EGF domains, where C2 and C3 are the second and third conserved cysteines. Specifically uses GDP-fucose as donor substrate and proper disulfide pairing of the substrate EGF domains is required for fucose transfer. Plays a crucial role in NOTCH signaling. Initial fucosylation of NOTCH by POFUT1 generates a substrate for FRINGE/RFNG, an acetylglucosaminyltransferase that can then extend the fucosylation on the NOTCH EGF repeats. This extended fucosylation is required for optimal ligand binding and canonical NOTCH signaling induced by DLL1 or JAGGED1. Fucosylates AGRN and determines its ability to cluster acetylcholine receptors (AChRs).