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EC 2.4.1.122 Details
EC number
2.4.1.122
Accepted name
N-acetylgalactosaminide β-1,3-galactosyltransferase
Reaction
UDP-α-D-galactose + N-acetyl-α-D-galactosaminyl-R = UDP + β-D-galactosyl-(1→3)-N-acetyl-α-D-galactosaminyl-R
Other name(s)
glycoprotein-N-acetylgalactosamine 3-β-galactosyltransferase, uridine diphosphogalactose-mucin β-(1→3)-galactosyltransferase, UDP-galactose:glycoprotein-N-acetyl-D-galactosamine 3-β-D-galactosyltransferase, UDP-Gal:α-D-GalNAc-1,3-α-D-GalNAc-diphosphoundecaprenol β-1,3-galactosyltransferase, wbnJ (gene name), wbiP (gene name), C1GALT1 (gene name), UDP-α-D-galactose:glycoprotein-N-acetyl-D-galactosamine 3-β-D-galactosyltransferase
Systematic name
UDP-α-D-galactose:N-acetyl-α-D-galactosaminyl-R β-1,3-galactosyltransferase (configuration-inverting)
CAS registry number
97089-61-7
Comment
The eukaryotic enzyme can act on non-reducing O-serine-linked N-acetylgalactosamine residues in mucin glycoproteins, forming the T-antigen. The bacterial enzyme, found in some pathogenic strains, is involved in biosynthesis of the O-antigen repeating unit.
History
created 1984 (EC 2.4.1.307 created 2013, incorporated 2016), modified 2016
EC Tree
2.4.1.3 created 1961, deleted 1972
2.4.1.6 created 1961, deleted 1972
2.4.1.42 created 1972, deleted 1984
2.4.1.51 created 1972, deleted 1984
2.4.1.55 created 1972, deleted 1982
2.4.1.59 created 1972, deleted 1984
2.4.1.61 created 1972, deleted 1984
2.4.1.72 created 1972, deleted 1976
2.4.1.75 created 1976, deleted 2005
2.4.1.76 created 1976, deleted 1984
2.4.1.77 created 1976, deleted 1984
2.4.1.84 created 1976, deleted 1984
2.4.1.89 created 1976, deleted 1984
2.4.1.93 created 1976, deleted 2004
2.4.1.98 created 1980, deleted 1984
2.4.1.107 created 1983, deleted 1984
2.4.1.108 created 1983, deleted 1984
2.4.1.124 created 1984, deleted 2002
2.4.1.151 created 1984, deleted 2002
2.4.1.169 created 1989, deleted 2003
2.4.1.200 created 1992, deleted 2004
2.4.1.204 created 1992, deleted 2003
2.4.1.233 created 2004, deleted 2005