B4GALT4 - beta-1,4-galactosyltransferase 4 Gene
Also Known as B4Gal-T4; beta4Gal-T4
Species: Homo sapiens
About B4GALT4
This gene has 20 transcripts (splice variants), 233 orthologues and 6 paralogues. Ubiquitous expression in gall bladder (RPKM 16.8), colon (RPKM 15.3) and 25 other tissues.
Summary
This gene is one of seven beta-1,4-galactosyltransferase (beta4GalT) genes. They encode type II membrane-bound glycoproteins that appear to have exclusive specificity for the donor substrate UDP-galactose; all transfer galactose in a beta1,4 linkage to similar acceptor sugars: GlcNAc, Glc, and Xyl. Each beta4GalT has a distinct function in the biosynthesis of different glycoconjugates and saccharide structures. As type II membrane proteins, they have an N-terminal hydrophobic signal sequence that directs the protein to the Golgi apparatus and which then remains uncleaved to function as a transmembrane anchor. By sequence similarity, the beta4GalTs form four groups: beta4GalT1 and beta4GalT2, beta4GalT3 and beta4GalT4, beta4GalT5 and beta4GalT6, and beta4GalT7. The enzyme encoded by this gene appears to mainly play a role in glycolipid biosynthesis. Two alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Jul 2008]
B4GALT4 Products (2)
| mRNA | Protein | Name |
|---|---|---|
| NM_003778.4 | NP_003769.1 | beta-1,4-galactosyltransferase 4 |
| NM_212543.2 | NP_997708.1 | beta-1,4-galactosyltransferase 4 |
| Molecular Function GO Annotation | Evidence | References | Source |
|---|---|---|---|
| enables N-acetyllactosamine synthase activity |
IDA
IDA: Inferred from direct assay
|
9792633 | GOA |
| enables UDP-galactosyltransferase activity |
IDA
IDA: Inferred from direct assay
|
9792633 | GOA |
| enables protein binding |
IPI
IPI: Inferred from physical interaction
|
32827291 | GOA |
| Biological Process GO Annotation | Evidence | References | Source |
|---|---|---|---|
| involved in keratan sulfate biosynthetic process |
IDA
IDA: Inferred from direct assay
|
17690104 | GOA |
| involved in keratan sulfate biosynthetic process |
IMP
IMP: Inferred from mutant phenotype
|
32827291 | GOA |
| involved in lactosylceramide biosynthetic process |
IDA
IDA: Inferred from direct assay
|
9792633 | GOA |
| Cellular Component GO Annotation | Evidence | References | Source |
|---|---|---|---|
| located in Golgi membrane |
IDA
IDA: Inferred from direct assay
|
32827291 | GOA |
B4GALT4 Protein Structure
Glyco_transf_7N: N-terminal region of glycosyl transferase group 7 (77 - 210)
Glyco_transf_7C: N-terminal domain of galactosyltransferase (214 - 289)
- 0
- 100
- 200
- 300
- 344 a.a.
| Protein Preferred Names | Protein Names | |
|---|---|---|
|
beta-1,4-galactosyltransferase 4 |
|
Recombinant B4GALT4 Proteins
| Cat. No. | Product Name | Accession | Purity |
|---|---|---|---|
| HY-P7630 | B4GALT4 Protein, Human (HEK293, His) | O60513 (Q39-A344) | ≥ 95%, as determined by reducing SDS-PAGE. |
Related Diseases
| Diseases | Alias | |
|---|---|---|
| Ehlers-Danlos Syndrome, Spondylodysplastic Type, 2 |
|
|
| Ehlers-Danlos Syndrome, Spondylodysplastic Type, 1 |
|
|
Orthologs Information
| Species | Symbol | Source | ID |
|---|---|---|---|
| Canis familiaris | B4GALT4 | VGNC | VGNC:38352 |
| Macaca mulatta | B4GALT4 | VGNC | VGNC:70211 |
| Felis catus | B4GALT4 | VGNC | VGNC:68990 |
| Mus musculus | B4GALT4 | MGD | MGI:1928387 |
| Rattus norvegicus | B4GALT4 | RGD | RGD:1307880 |
| Bos taurus | B4GALT4 | VGNC | VGNC:26391 |
| Others | B4GALT4 | NCBI |