Polypeptide N-acetylgalactosaminyltransferase 6

There are two conserved domains in the glycosyltransferase region: the N-terminal domain (domain A, also called GT1 motif), which is probably involved in manganese coordination and substrate binding and the C-terminal domain (domain B, also called Gal/GalNAc-T motif), which is probably involved in catalytic reaction and UDP-Gal binding.

The ricin B-type lectin domain binds to GalNAc and contributes to the glycopeptide specificity.

Catalyzes the initial reaction in O-linked oligosaccharide biosynthesis, the transfer of an N-acetyl-D-galactosamine residue to a serine or threonine residue on the protein receptor (PubMed:10464263, PubMed:31932717). May participate in synthesis of oncofetal fibronectin (PubMed:10464263). Has activity toward MUC1A, MUC2, EA2 and fibronectin peptides (PubMed:10464263). Glycosylates FGF23 (PubMed:31932717).

Protein modification; protein glycosylation.

Belongs to the glycosyltransferase 2 family. GalNAc-T subfamily.

Expressed in placenta and trachea. Weakly expressed in brain and pancreas. Expressed in fibroblast. Weakly or not expressed in lung, liver, muscle, kidney, spleen, thymus, prostate, testis, ovary, intestine, colon, leukocyte, stomach, thyroid, spinal cord, lymph node, trachea, adrenal gland and bone marrow.

• Golgi apparatus membrane
• Single-pass type II membrane protein

Polypeptide N-acetylgalactosaminyltransferase 6, Polypeptide GalNAc transferase 6, Protein-UDP acetylgalactosaminyltransferase 6, UDP-GalNAc:polypeptide N-acetylgalactosaminyltransferase 6, GalNAc-T6, pp-GaNTase 6, GALNT6

• entrezGene:11226
• swissprot:Q8NCL4

Proteins

Oncology

71159Da