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B-1,3-galactosyl-O-glycosyl-glycoprotein b-1,3-N-acetylglucosaminyltransferase

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Beta-1,3-galactosyl-O-glycosyl-glycoprotein beta-1,3-N-acetylglucosaminyltransferase
Identifiers
EC no.2.4.1.146
CAS no.87927-99-9
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
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NCBIproteins

Beta-1,3-galactosyl-O-glycosyl-glycoprotein beta-1,3-N-acetylglucosaminyltransferase (EC 2.4.1.146, O-glycosyl-oligosaccharide-glycoprotein N-acetylglucosaminyltransferase II, uridine diphosphoacetylglucosamine-mucin beta(1->3)-acetylglucosaminyltransferase (elongating), elongation 3beta-GalNAc-transferase, UDP-N-acetyl-D-glucosamine:O-glycosyl-glycoprotein (N-acetyl-D-glucosamine to beta-D-galactose of beta-D-galactosyl-1,3-(N-acetyl-D-glucosaminyl-1,6)-N-acetyl-D-galactosaminyl-R) beta-1,3-N-acetyl-D-glucosaminyltransferase) is an enzyme with systematic name UDP-N-acetyl-D-glucosamine:beta-D-galactosyl-(1->3)-(N-acetyl-D-glucosaminyl-(1->6))-N-acetyl-D-galactosaminyl-R 3-beta-N-acetyl-D-glucosaminyltransferase.[1] This enzyme catalyses the following chemical reaction

UDP-N-acetyl-D-glucosamine + beta-D-galactosyl-(1->3)-[N-acetyl-D-glucosaminyl-(1->6)]-N-acetyl-D-galactosaminyl-R UDP + N-acetyl-beta-D-glucosaminyl-(1->3)-beta-D-galactosyl-(1->3)-[N-acetyl-beta-D-glucosaminyl-(1->6)]-N-acetyl-D-galactosaminyl-R

See also

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  • EC 2.4.1.102 (beta-1,3-galactosyl-O-glycosyl-glycoprotein beta-1,6-N-acetylglucosaminyltransferase)
  • EC 2.4.1.147 (acetylgalactosaminyl-O-glycosyl-glycoprotein beta-1,3-N-acetylglucosaminyltransferase)
  • EC 2.4.1.148 (acetylgalactosaminyl-O-glycosyl-glycoprotein beta-1,6-N-acetylglucosaminyltransferase).

References

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  1. ^ Brockhausen I, Rachaman ES, Matta KL, Schachter H (August 1983). "The separation by liquid chromatography (under elevated pressure) of phenyl, benzyl, and O-nitrophenyl glycosides of oligosaccharides. Analysis of substrates and products for four N-acetyl-D-glucosaminyl-transferases involved in mucin synthesis". Carbohydrate Research. 120: 3–16. doi:10.1016/0008-6215(83)88002-1. PMID 6226356.
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