MGAT4B - alpha-1,3-mannosyl-glycoprotein 4-beta-N-acetylglucosaminyltransferase B Gene
Also Known as GNT-IV; GNT-IVB
Species: Homo sapiens
About MGAT4B
This gene has 23 transcripts (splice variants), 1 gene allele, 212 orthologues and 3 paralogues. Ubiquitous expression in small intestine (RPKM 64.0), duodenum (RPKM 63.6) and 24 other tissues.
Summary
This gene encodes a key Glycosyltransferase that regulates the formation of tri- and multiantennary branching structures in the Golgi apparatus. The encoded protein, in addition to the related isoenzyme A, catalyzes the transfer of N-acetylglucosamine (GlcNAc) from UDP-GlcNAc in a beta-1,4 linkage to the Man-alpha-1,3-Man-beta-1,4-GlcNAc arm of R-Man-alpha-1,6(GlcNAc-beta-1,2-Man-alpha-1,3)Man-beta-1,4-GlcNAc-beta-1,4-GlcNAc-beta-1-Asn. The encoded protein may play a role in regulating the availability of serum glycoproteins, oncogenesis, and differentiation. [provided by RefSeq, Jul 2008]
MGAT4B Products (2)
| mRNA | Protein | Name |
|---|---|---|
| NM_014275.5 | NP_055090.1 | alpha-1,3-mannosyl-glycoprotein 4-beta-N-acetylglucosaminyltransferase B isoform 1 precursor |
| NM_054013.3 | NP_463459.1 | alpha-1,3-mannosyl-glycoprotein 4-beta-N-acetylglucosaminyltransferase B isoform 2 |
| Molecular Function GO Annotation | Evidence | Referencias | Source |
|---|---|---|---|
| enables alpha-1,3-mannosylglycoprotein 4-beta-N-acetylglucosaminyltransferase activity |
IDA
IDA: Inferred from direct assay
|
10372966 | GOA |
| enables protein binding |
IPI
IPI: Inferred from physical interaction
|
32296183 | GOA |
| Biological Process GO Annotation | Evidence | Referencias | Source |
|---|---|---|---|
| involved in protein glycosylation |
IDA
IDA: Inferred from direct assay
|
17006639 | GOA |
MGAT4B Protein Structure
Glyco_transf_54: N-Acetylglucosaminyltransferase-IV (GnT-IV) conserved region (107 - 387)
- 0
- 100
- 200
- 300
- 400
- 500
- 548 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
alpha-1,3-mannosyl-glycoprotein 4-beta-N-acetylglucosaminyltransferase B |
|
MGAT4B Protein-protein interaction Information
|
Type
|
Protein Name | Protein ID | Interactor | Interactor Species | Interactor ID | Detection Method | Referencias |
|---|---|---|---|---|---|---|---|
|
Intra
|
MGAT4B | Q9UQ53 | APPBP2 | Homo sapiens | Q92624 | 32296183 | |
|
Intra
|
MGAT4B | Q9UQ53 | APPBP2 | Homo sapiens | Q92624 | 32296183 |
Related Diseases
| Diseases | Alias | |
|---|---|---|
| Congenital Disorder Of Glycosylation, Type Iia |
|
|
Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Rattus norvegicus | MGAT4B | RGD | RGD:1562836 |
| Mus musculus | MGAT4B | MGD | MGI:2143974 |
| Bos taurus | MGAT4B | VGNC | VGNC:54624 |
| Canis familiaris | MGAT4B | VGNC | VGNC:51745 |
| Felis catus | MGAT4B | VGNC | VGNC:68248 |
| Macaca mulatta | MGAT4B | VGNC | VGNC:74715 |
| Others | MGAT4B | NCBI |