UniProtKB - P83337 (OFUT1_CRIGR)
Protein
GDP-fucose protein O-fucosyltransferase 1
Gene
POFUT1
Organism
Cricetulus griseus (Chinese hamster) (Cricetulus barabensis griseus)
Status
Functioni
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 DELTA1 or JAGGED1 (By similarity). Fucosylates AGRN and determines its ability to cluster acetylcholine receptors (AChRs) (By similarity).By similarity1 Publication
Catalytic activityi
- Transfers an alpha-L-fucosyl residue from GDP-beta-L-fucose to the serine hydroxy group of a protein acceptor.3 Publications EC:2.4.1.221
Activity regulationi
Activated by manganese and, to a lesser extent, by other divalent metals such as cobalt and calcium. Inhibited by copper, ferric and zinc ions.1 Publication
Kineticsi
- KM=11 µM for His6-F7-EGF-11 Publication
- KM=15 µM for F7-EGF-11 Publication
- Vmax=2.5 µmol/min/mg enzyme1 Publication
- Vmax=2.4 µmol/min/mg enzyme1 Publication
pH dependencei
Optimum pH is 5.5-8.0.1 Publication
: protein glycosylation Pathwayi
This protein is involved in the pathway protein glycosylation, which is part of Protein modification.View all proteins of this organism that are known to be involved in the pathway protein glycosylation and in Protein modification.
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Binding sitei | 344 | SubstrateBy similarity | 1 |
GO - Molecular functioni
- peptide-O-fucosyltransferase activity Source: UniProtKB
- transferase activity Source: UniProtKB
- transferase activity, transferring glycosyl groups Source: UniProtKB
GO - Biological processi
- angiogenesis Source: Ensembl
- fucose metabolic process Source: UniProtKB-KW
- heart development Source: Ensembl
- nervous system development Source: Ensembl
- Notch signaling pathway Source: UniProtKB-KW
- protein glycosylation Source: UniProtKB
- regulation of Notch signaling pathway Source: UniProtKB
- somitogenesis Source: Ensembl
Keywordsi
Molecular function | Glycosyltransferase, Transferase |
Biological process | Carbohydrate metabolism, Fucose metabolism, Notch signaling pathway |
Enzyme and pathway databases
UniPathwayi | UPA00378 |
Names & Taxonomyi
Protein namesi | Recommended name: GDP-fucose protein O-fucosyltransferase 1 (EC:2.4.1.2212 Publications)Alternative name(s): Peptide-O-fucosyltransferase 1 Short name: O-FucT-1 |
Gene namesi | Name:POFUT1 |
Organismi | Cricetulus griseus (Chinese hamster) (Cricetulus barabensis griseus) |
Taxonomic identifieri | 10029 [NCBI] |
Taxonomic lineagei | Eukaryota › Metazoa › Chordata › Craniata › Vertebrata › Euteleostomi › Mammalia › Eutheria › Euarchontoglires › Glires › Rodentia › Myomorpha › Muroidea › Cricetidae › Cricetinae › Cricetulus |
Proteomesi |
|
Subcellular locationi
Endoplasmic reticulum
- Endoplasmic reticulum By similarity
Endoplasmic reticulum
- endoplasmic reticulum membrane Source: Reactome
Keywords - Cellular componenti
Endoplasmic reticulumPTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000220935 | 1 – 392 | GDP-fucose protein O-fucosyltransferase 1Add BLAST | 392 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Disulfide bondi | 42 ↔ 44 | By similarity | ||
Glycosylationi | 66 | N-linked (GlcNAc...) asparagineSequence analysis | 1 | |
Disulfide bondi | 130 ↔ 144 | By similarity | ||
Glycosylationi | 164 | N-linked (GlcNAc...) asparagineSequence analysis | 1 | |
Disulfide bondi | 253 ↔ 287 | By similarity | ||
Disulfide bondi | 271 ↔ 358 | By similarity |
Post-translational modificationi
N-glycosylated. Contains high mannose-type carbohydrates.1 Publication
Keywords - PTMi
Disulfide bond, GlycoproteinFamily & Domainsi
Region
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Regioni | 47 – 50 | Substrate bindingBy similarity | 4 | |
Regioni | 242 – 244 | Substrate bindingBy similarity | 3 | |
Regioni | 361 – 362 | Substrate bindingBy similarity | 2 |
Motif
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Motifi | 389 – 392 | Prevents secretion from ERSequence analysis | 4 |
Sequence similaritiesi
Belongs to the glycosyltransferase 65 family.Curated
Phylogenomic databases
eggNOGi | KOG3849, Eukaryota |
InParanoidi | P83337 |
OMAi | HFDVHHS |
OrthoDBi | 1127619at2759 |
Family and domain databases
InterProi | View protein in InterPro IPR019378, GDP-Fuc_O-FucTrfase IPR039922, POFUT1 |
PANTHERi | PTHR21420, PTHR21420, 1 hit |
Pfami | View protein in Pfam PF10250, O-FucT, 1 hit |
i Sequence
Sequence statusi: Complete.
P83337-1 [UniParc]FASTAAdd to basket
10 20 30 40 50
MGAAAWAPPH LLLRVSLLLL LLLPLRGRLA GSWDLAGYLL YCPCMGRFGN
60 70 80 90 100
QADHFLGSLA FAKLLNRTLA VPPWIEYQHH KPPFTNLHVS YQKYFKLEPL
110 120 130 140 150
QAYHRVISLE EFMEKLAPIH WPPEKRVAYC FEVAAQRSPD KKTCPMKEGN
160 170 180 190 200
PFGPFWDQFH VSFNKSELFT GISFSASYKE QWIQRFPPEE HPVLALPGAP
210 220 230 240 250
AQFPVLEEHR ALQKYMVWSD EMVKTGEAQI STHLIRPYVG IHLRIGSDWK
260 270 280 290 300
NACAMLKDGT AGSHFMASPQ CVGYSRSTAT PLTMTMCLPD LNEIQRAVKL
310 320 330 340 350
WVRALNARSI YIATDSESYV PEIQQLFKEK VKVVSLKPEV AQVDLYILGQ
360 370 380 390
ADHFIGNCVS SFTAFVKRER DLHGRQSSFF GMDRPSQPRD EF
Experimental Info
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Sequence conflicti | 66 | N → V AA sequence (PubMed:11524432).Curated | 1 |
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | JH000311 Genomic DNA Translation: EGW00282.1 |
RefSeqi | XP_003502364.1, XM_003502316.2 |
Genome annotation databases
Ensembli | ENSCGRT00001015791; ENSCGRP00001011559; ENSCGRG00001013152 |
GeneIDi | 100753417 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | JH000311 Genomic DNA Translation: EGW00282.1 |
RefSeqi | XP_003502364.1, XM_003502316.2 |
3D structure databases
SMRi | P83337 |
ModBasei | Search... |
Protein-protein interaction databases
STRINGi | 10029.XP_007618809.1 |
Genome annotation databases
Ensembli | ENSCGRT00001015791; ENSCGRP00001011559; ENSCGRG00001013152 |
GeneIDi | 100753417 |
Organism-specific databases
CTDi | 23509 |
Phylogenomic databases
eggNOGi | KOG3849, Eukaryota |
InParanoidi | P83337 |
OMAi | HFDVHHS |
OrthoDBi | 1127619at2759 |
Enzyme and pathway databases
UniPathwayi | UPA00378 |
Family and domain databases
InterProi | View protein in InterPro IPR019378, GDP-Fuc_O-FucTrfase IPR039922, POFUT1 |
PANTHERi | PTHR21420, PTHR21420, 1 hit |
Pfami | View protein in Pfam PF10250, O-FucT, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | OFUT1_CRIGR | |
Accessioni | P83337Primary (citable) accession number: P83337 Secondary accession number(s): G3HE95 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | September 13, 2004 |
Last sequence update: | January 9, 2013 | |
Last modified: | October 7, 2020 | |
This is version 70 of the entry and version 2 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Chordata Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Direct protein sequencing, Reference proteomeDocuments
- PATHWAY comments
Index of metabolic and biosynthesis pathways - SIMILARITY comments
Index of protein domains and families