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EC 2.4.1.90 Details
EC number
2.4.1.90
Accepted name
N-acetyllactosamine synthase
Reaction
UDP-α-D-galactose + N-acetyl-D-glucosamine = UDP + N-acetyllactosamine
Other name(s)
UDP-galactose—N-acetylglucosamine β-D-galactosyltransferase, uridine diphosphogalactose-acetylglucosamine galactosyltransferase, β-1,4-galactosyltransferase, acetyllactosamine synthetase, lactosamine synthase, lactosamine synthetase, lactose synthetase A protein, N-acetyllactosamine synthetase, UDP-galactose N-acetylglucosamine β-4-galactosyltransferase, UDP-galactose-acetylglucosamine galactosyltransferase, UDP-galactose-N-acetylglucosamine β-1,4-galactosyltransferase, UDP-galactose-N-acetylglucosamine galactosyltransferase, β1-4-galactosyltransferase, UDP-Gal:N-acetylglucosamine β1-4-galactosyltransferase, β1-4GalT, NAL synthetase, UDP-β-1,4-galactosyltransferase, Gal-T, UDP-galactose:N-acetylglucosaminide β1-4-galactosyltransferase, UDPgalactose:N-acetylglucosaminyl(β1-4)galactosyltransferase, β-N-acetylglucosaminide β1-4-galactosyltransferase, UDP-galactose:N-acetyl-D-glucosamine 4-β-D-galactosyltransferase
Systematic name
UDP-α-D-galactose:N-acetyl-D-glucosamine 4-β-D-galactosyltransferase
CAS registry number
9054-94-8
Comment
The reaction is catalysed by a component of EC 2.4.1.22 (lactose synthase), which is identical with EC 2.4.1.38 (β-N-acetylglucosaminyl-glycopeptide β-1,4-galactosyltransferase), and by an enzyme from the Golgi apparatus of animal tissues. Formerly listed also as EC 2.4.1.98.
History
created 1976 (EC 2.4.1.98 created 1980, incorporated 1984)
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