EC 2.4.1.41 - Polypeptide N-acetylgalactosaminyltransferase
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ENZYME view
IntEnz Enzyme Nomenclature
EC 2.4.1.41
Names
Accepted name:
polypeptide N-acetylgalactosaminyltransferase
Other
names:
UDP-N-acetyl-α-D-galactosamine:polypeptide N-acetylgalactosaminyltransferase
UDP-N-acetylgalactosamine-glycoprotein N-acetylgalactosaminyltransferase
UDP-N-acetylgalactosamine-protein N-acetylgalactosaminyltransferase
UDP-N-acetylgalactosamine:κ-casein polypeptide N-acetylgalactosaminyltransferase
UDP-N-acetylgalactosamine:polypeptide N-acetylgalactosaminyltransferase
UDP-N-acetylgalactosamine:protein N-acetylgalactosaminyl transferase
UDP-GalNAc:polypeptide N-acetylgalactosaminyl transferase
UDP-GalNAc:polypeptide N-acetylgalactosaminyltransferase
UDP-acetylgalactosamine-glycoprotein acetylgalactosaminyltransferase
UDP-acetylgalactosamine:peptide-N-galactosaminyltransferase
glycoprotein acetylgalactosaminyltransferase
polypeptide-N-acetylgalactosamine transferase
protein-UDP acetylgalactosaminyltransferase
uridine diphosphoacetylgalactosamine-glycoprotein acetylgalactosaminyltransferase
UDP-N-acetyl-D-galactosamine:polypeptide N-acetylgalactosaminyl-transferase
UDP-N-acetyl-α-D-galactosamine:polypeptide N-acetylgalactosaminyl-transferase
UDP-N-acetylgalactosamine-glycoprotein N-acetylgalactosaminyltransferase
UDP-N-acetylgalactosamine-protein N-acetylgalactosaminyltransferase
UDP-N-acetylgalactosamine:κ-casein polypeptide N-acetylgalactosaminyltransferase
UDP-N-acetylgalactosamine:polypeptide N-acetylgalactosaminyltransferase
UDP-N-acetylgalactosamine:protein N-acetylgalactosaminyl transferase
UDP-GalNAc:polypeptide N-acetylgalactosaminyl transferase
UDP-GalNAc:polypeptide N-acetylgalactosaminyltransferase
UDP-acetylgalactosamine-glycoprotein acetylgalactosaminyltransferase
UDP-acetylgalactosamine:peptide-N-galactosaminyltransferase
glycoprotein acetylgalactosaminyltransferase
polypeptide-N-acetylgalactosamine transferase
protein-UDP acetylgalactosaminyltransferase
uridine diphosphoacetylgalactosamine-glycoprotein acetylgalactosaminyltransferase
UDP-N-acetyl-D-galactosamine:polypeptide N-acetylgalactosaminyl-transferase
UDP-N-acetyl-α-D-galactosamine:polypeptide N-acetylgalactosaminyl-transferase
Systematic name:
UDP-N-acetyl-α-D-galactosamine:[protein]-3-O-N-acetyl-α-D-galactosaminyl transferase (configuration-retaining)
Reactions
- (1) UDP-N-acetyl-alpha-D-galactosamine + protein-L-serine = UDP + protein-3-O-(N-acetyl-alpha-D-galactosaminyl)-L-serine
- (2) UDP-N-acetyl-alpha-D-galactosamine + protein-L-threonine = UDP + protein-3-O-(N-acetyl-alpha-D-galactosaminyl)-L-threonine
Cofactors
Comments:
Requires both Mn2+ and Ca2+. The glycosyl residue is transferred to threonine or serine hydroxy groups on the polypeptide core of submaxillary mucin, κ-casein, apofetuin and some other acceptors of high molecular mass.
Links to other databases
Gene Ontology:
GO:0004653
CAS Registry Number:
9075-15-4
References
-
Purification and characterization of UDP-GalNAc:polypeptide N-acetylgalactosamine transferase from an ascites hepatoma, AH 66.J. Biol. Chem. 257 : 9501-9507 (1982). [PMID: 6809738]
-
Purification and characterization of UDP-N-acetylgalactosamine-κ-casein polypeptide N-acetylgalactosaminyltransferase from mammary-gland of lactating cow.Agric. Biol. Chem. 49 : 1059-1069 (1985).
[EC 2.4.1.41 created 1972, modified 1989]