A0A4W4E605 · A0A4W4E605_ELEEL
- ProteinAlpha-1,3-mannosyl-glycoprotein 4-beta-N-acetylglucosaminyltransferase A
- GeneMGAT4A
- StatusUniProtKB unreviewed (TrEMBL)
- Amino acids533 (go to sequence)
- Protein existenceInferred from homology
- Annotation score4/5
Function
function
Glycosyltransferase that catalyze the transfer of GlcNAc from UDP-GlcNAc to the GlcNAcbeta1-2Manalpha1-3 arm of the core structure of N-linked glycans through a beta1-4 linkage and participates in the production of tri- and tetra-antennary N-linked sugar chains. Involved in glucose transport by mediating SLC2A2/GLUT2 glycosylation, thereby controlling cell-surface expression of SLC2A2 in pancreatic beta cells.
Catalytic activity
- N4-{beta-D-Gal-(1->4)-beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-asparaginyl-[protein] + UDP-N-acetyl-alpha-D-glucosamine = N4-{beta-D-Gal-(1->4)-beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->4)]-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-L-asparaginyl-[protein] + UDP + H+This reaction proceeds in the forward direction.
- N4-{beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->3)-{alpha-D-Man-(1->6)}-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-asparaginyl-[protein] + UDP-N-acetyl-alpha-D-glucosamine = N4-{beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->4)]-alpha-D-Man-(1->3)-[alpha-D-Man-(1->3)-{alpha-D-Man-(1->6)}-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-asparaginyl-[protein] + UDP + H+This reaction proceeds in the forward direction.
- N4-{beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->3)-[alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-L-asparaginyl-[protein] + UDP-N-acetyl-alpha-D-glucosamine = N4-{beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->4)]-alpha-D-Man-(1->3)-[alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-L-asparaginyl-[protein] + UDP + H+This reaction proceeds in the forward direction.
- N4-{beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-[alpha-L-Fuc-(1->6)]-beta-D-GlcNAc}-L-asparaginyl-[protein] + UDP-N-acetyl-alpha-D-glucosamine = N4-{beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->4)]-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-[alpha-L-Fuc-(1->6)]-beta-D-GlcNAc}-asparaginyl-[protein] + UDP + H+This reaction proceeds in the forward direction.
- N4-{beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-L-asparaginyl-[protein] + UDP-N-acetyl-alpha-D-glucosamine = N4-{beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->4)]-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-L-asparaginyl-[protein] + UDP + H+This reaction proceeds in the forward direction.
- N4-{beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-{beta-D-GlcNAc-(1->6)}-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-asparaginyl-[protein] + UDP-N-acetyl-alpha-D-glucosamine = N4-{beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->4)]-alpha-D-Man-(1->3)-[beta-D-GlcNAc-(1->2)-{beta-D-GlcNAc-(1->6)}-alpha-D-Man-(1->6)]-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-asparaginyl-[protein] + UDP + H+This reaction proceeds in the forward direction.
- N4-{beta-D-GlcNAc-(1->2)-alpha-D-Man-(1->3)-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-asparaginyl-[protein] + UDP-N-acetyl-alpha-D-glucosamine = N4-{beta-D-GlcNAc-(1->2)-[beta-D-GlcNAc-(1->4)]-alpha-D-Man-(1->3)-beta-D-Man-(1->4)-beta-D-GlcNAc-(1->4)-beta-D-GlcNAc}-asparaginyl-[protein] + UDP + H+This reaction proceeds in the forward direction.
Cofactor
Pathway
Protein modification; protein glycosylation.
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | endoplasmic reticulum | |
Cellular Component | endoplasmic reticulum-Golgi intermediate compartment | |
Cellular Component | extracellular region | |
Cellular Component | Golgi stack | |
Cellular Component | membrane | |
Molecular Function | acetylglucosaminyltransferase activity | |
Molecular Function | metal ion binding | |
Biological Process | protein N-linked glycosylation |
Keywords
- Molecular function
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended nameAlpha-1,3-mannosyl-glycoprotein 4-beta-N-acetylglucosaminyltransferase A
- EC number
- Alternative names
Gene names
Organism names
- Taxonomic lineageEukaryota > Metazoa > Chordata > Craniata > Vertebrata > Euteleostomi > Actinopterygii > Neopterygii > Teleostei > Ostariophysi > Gymnotiformes > Gymnotoidei > Gymnotidae > Electrophorus
Accessions
- Primary accessionA0A4W4E605
Proteomes
Subcellular Location
UniProt Annotation
GO Annotation
Golgi apparatus membrane ; Single-pass type II membrane protein
Keywords
- Cellular component
PTM/Processing
Keywords
- PTM
Structure
Sequence
- Sequence statusComplete
- Length533
- Mass (Da)61,420
- Last updated2019-09-18 v1
- MD5 Checksum6D3E2F65E94819751DBD9E75E63EA4B2
Computationally mapped potential isoform sequences
There is 1 potential isoform mapped to this entry
Entry | Entry name | Gene name | Length | ||
---|---|---|---|---|---|
A0A4W4E5N4 | A0A4W4E5N4_ELEEL | MGAT4A | 547 |
Keywords
- Technical term