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EC 2.4.1.255 Details
EC number
2.4.1.255
Accepted name
protein O-GlcNAc transferase
Reaction
(1) UDP-N-acetyl-α-D-glucosamine + [protein]-L-serine = UDP + [protein]-3-O-(N-acetyl-β-D-glucosaminyl)-L-serine;; (2) UDP-N-acetyl-α-D-glucosamine + [protein]-L-threonine = UDP + [protein]-3-O-(N-acetyl-β-D-glucosaminyl)-L-threonine
Other name(s)
O-GlcNAc transferase, OGTase, O-linked N-acetylglucosaminyltransferase, uridine diphospho-N-acetylglucosamine:polypeptide β-N-acetylglucosaminyltransferase, protein O-linked β-N-acetylglucosamine transferase
Systematic name
UDP-N-α-acetyl-D-glucosamine:[protein]-3-O-N-acetyl-β-D-glucosaminyl transferase
Comment
Within higher eukaryotes post-translational modification of protein serines/threonines with N-acetylglucosamine (O-GlcNAc) is dynamic, inducible and abundant, regulating many cellular processes by interfering with protein phosphorylation. EC 2.4.1.255 (protein O-GlcNAc transferase) transfers GlcNAc onto substrate proteins and EC 3.2.1.169 (protein O-GlcNAcase) cleaves GlcNAc from the modified proteins.
History
created 2011
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