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This gene is one of seven beta-1,4-galactosyltransferase (beta4GalT) genes in human. 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. This gene produces multiple protein isoforms - some of which are predicted to lack the N-terminal hydrophobic signal sequence and transmembrane domain. By sequence similarity, the beta4GalTs form four groups: beta4GalT1 and beta4GalT2, beta4GalT3 and beta4GalT4, beta4GalT5 and beta4GalT6, and beta4GalT7. The canonical enzyme encoded by this gene is a lactosylceramide synthase important for glycolipid biosynthesis. [provided by RefSeq, Jan 2020]
B4GALT6 (Beta-1,4-Galactosyltransferase 6) is a Protein Coding gene. Diseases associated with B4GALT6 include Ehlers-Danlos Syndrome, Spondylodysplastic Type, 2 and Spinal Muscular Atrophy With Progressive Myoclonic Epilepsy. Among its related pathways are O-linked glycosylation and Metabolism of proteins. Gene Ontology (GO) annotations related to this gene include transferase activity, transferring glycosyl groups and galactosyltransferase activity. An important paralog of this gene is B4GALT5.
GO ID | Qualified GO term | Evidence | PubMed IDs |
---|---|---|---|
GO:0008378 | galactosyltransferase activity | IDA | 10320813 |
GO:0008489 | UDP-galactose:glucosylceramide beta-1,4-galactosyltransferase activity | ISS | -- |
GO:0016740 | transferase activity | IEA | -- |
GO:0016757 | transferase activity, transferring glycosyl groups | IEA | -- |
GO:0046872 | metal ion binding | IEA | -- |
GO ID | Qualified GO term | Evidence | PubMed IDs |
---|---|---|---|
GO:0000139 | Golgi membrane | TAS | -- |
GO:0005794 | Golgi apparatus | IEA,IBA | 21873635 |
GO:0016020 | membrane | IEA | -- |
GO:0016021 | integral component of membrane | IEA | -- |
GO:0032580 | Golgi cisterna membrane | IEA | -- |
SuperPathway | Contained pathways | ||
---|---|---|---|
1 | Metabolism |
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2 | Sphingolipid metabolism | ||
3 | Transport to the Golgi and subsequent modification | ||
4 | Glycosaminoglycan metabolism | ||
5 | Keratan sulfate/keratin metabolism |
GO ID | Qualified GO term | Evidence | PubMed IDs |
---|---|---|---|
GO:0001572 | lactosylceramide biosynthetic process | IDA | 10320813 |
GO:0005975 | carbohydrate metabolic process | IEA | -- |
GO:0006486 | protein glycosylation | IEA | -- |
GO:0006629 | lipid metabolic process | IEA | -- |
GO:0006665 | sphingolipid metabolic process | IEA | -- |
Name | Synonyms | Role | CAS Number | PubChem IDs | PubMed IDs | |
---|---|---|---|---|---|---|
3-O-Sulfogalactosylceramide (d18:1/12:0) |
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852100-88-0 |
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3-O-Sulfogalactosylceramide (d18:1/14:0) |
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3-O-Sulfogalactosylceramide (d18:1/16:0) |
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862509-48-6 |
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3-O-Sulfogalactosylceramide (d18:1/18:0) |
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244215-65-4 |
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3-O-Sulfogalactosylceramide (d18:1/18:1(9Z)) |
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ExUns: | 1a | · | 1b | · | 1c | ^ | 2 | ^ | 3a | · | 3b | ^ | 4 | ^ | 5 | ^ | 6 | ^ | 7 | ^ | 8 | ^ | 9a | · | 9b | · | 9c |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
SP1: | - | ||||||||||||||||||||||||||
SP2: | - | - | |||||||||||||||||||||||||
SP3: | - | - | |||||||||||||||||||||||||
SP4: | - | - |
This gene was present in the common ancestor of animals.
Organism | Taxonomy | Gene | Similarity | Type | Details |
---|---|---|---|---|---|
Chimpanzee (Pan troglodytes) |
Mammalia | B4GALT6 30 31 |
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OneToOne | |
Dog (Canis familiaris) |
Mammalia | B4GALT6 30 31 |
|
OneToOne | |
Cow (Bos Taurus) |
Mammalia | B4GALT6 30 31 |
|
OneToOne | |
Oppossum (Monodelphis domestica) |
Mammalia | B4GALT6 31 |
|
OneToOne | |
Mouse (Mus musculus) |
Mammalia | B4galt6 30 17 31 |
|
OneToOne | |
Rat (Rattus norvegicus) |
Mammalia | B4galt6 30 |
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Platypus (Ornithorhynchus anatinus) |
Mammalia | B4GALT6 31 |
|
OneToOne | |
Chicken (Gallus gallus) |
Aves | B4GALT6 30 31 |
|
OneToOne | |
Lizard (Anolis carolinensis) |
Reptilia | B4GALT6 31 |
|
OneToOne | |
Tropical Clawed Frog (Silurana tropicalis) |
Amphibia | b4galt5 30 |
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Str.17604 30 |
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Zebrafish (Danio rerio) |
Actinopterygii | b4galt6 30 31 |
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OneToOne | |
zgc55730 30 |
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Fruit Fly (Drosophila melanogaster) |
Insecta | BcDNA:GH13356 32 |
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CG14517 32 |
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beta4GalT7 31 |
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OneToMany | |||
Worm (Caenorhabditis elegans) |
Secernentea | W02B12.11 32 |
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sqv-3 31 |
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OneToMany | |||
Sea Squirt (Ciona savignyi) |
Ascidiacea | -- 31 |
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OneToMany |
SNP ID | Clinical significance and condition | Chr 18 pos | Variation | AA Info | Type |
---|---|---|---|---|---|
rs35210437 | Benign: not provided | 31,684,333(-) |
T/C NM_004775.4(B4GALT6):c.94A>G (p.Ile32Val) |
MISSENSE | |
rs34683195 | - |
p.Ile379Val |
Variant ID | Type | Subtype | PubMed ID |
---|---|---|---|
esv2577449 | CNV | deletion | 19546169 |
esv2716936 | CNV | deletion | 23290073 |
esv3642131 | CNV | loss | 21293372 |
esv3893086 | CNV | gain | 25118596 |
nsv1118784 | CNV | deletion | 24896259 |
nsv819046 | CNV | loss | 19587683 |
Disorder | Aliases | PubMed IDs |
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ehlers-danlos syndrome, spondylodysplastic type, 2 |
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spinal muscular atrophy with progressive myoclonic epilepsy |
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meester-loeys syndrome |
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