Polypeptide N-Acetylgalactosaminyltransferase 3

**Semantic type:** Amino Acid, Peptide, or Protein|Enzyme

**Definition:** Polypeptide N-acetylgalactosaminyltransferase 3 (633 aa, ~73 kDa) is encoded by the human GALNT3 gene. This protein is involved in catalyzing the transfer of an N-acetyl-D-galactosamine residue to a serine or threonine residue on the protein substrate.

**Synonyms:** - EC 2.4.1.41 - GALNT3 - GalNAc-T3 - Polypeptide GalNAc Transferase 3 - Protein-UDP Acetylgalactosaminyltransferase 3 - UDP-GalNAc:Polypeptide N-Acetylgalactosaminyltransferase 3 - UDP-N-Acetyl-Alpha-D-Galactosamine:Polypeptide N-Acetylgalactosaminyltransferase 3 - pp-GaNTase 3