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2.4.1.102: beta-1,3-galactosyl-O-glycosyl-glycoprotein beta-1,6-N-acetylglucosaminyltransferase

This is an abbreviated version!
For detailed information about beta-1,3-galactosyl-O-glycosyl-glycoprotein beta-1,6-N-acetylglucosaminyltransferase, go to the full flat file.

Word Map on EC 2.4.1.102

Reaction

UDP-N-acetyl-alpha-D-glucosamine
+
O3-[beta-D-galactosyl-(1->3)-N-acetyl-alpha-D-galactosaminyl]-L-seryl/threonyl-[protein]
=
UDP
+
O3-{beta-D-galactosyl-(1->3)-[N-acetyl-beta-D-glucosaminyl-(1->6)]-N-acetyl-alpha-D-galactosaminyl}-L-seryl/threonyl-[protein]

Synonyms

2beta-1,6-acetylglucosaminyltransferase, acetylglucosaminyltransferase, uridine diphosphoacetylglucosamine-mucin beta-(1-6)-, acetylglucosaminyltransferase, uridine diphosphoacetylglucosamine-mucin beta-(1-6)-, A, bC2GnT-M, beta-1,3-galactosyl-O-glycosyl-glycoprotein beta-1,6-N-acetylglucosaminyltransferase 3, beta-1,6-N-acetylglucosaminyltransferase, beta1,6-N-acetylglucosaminyltransferase, beta6-N-acetylglucosaminyltransferase, Bo17, C2 beta6GnT1, C2/4GnT, C24GNT, C2GlcNAcT-I, C2GlcNAcT-II, C2GlcNAcT-III, C2GnT, C2GnT-1, C2GnT-I, C2GnT-L, c2GnT-M, C2GnT1, C2GnT2, C2GnT3, C2GNTM, C4GnT, core 2 acetylglucosaminyltransferase, core 2 beta-1, 6-N-acetylglucosaminyltransferase-1, core 2 beta-1,6 N-acetylglucosaminyltransferase, core 2 beta-1,6-N-acetylglucosaminyltransferase, core 2 beta1,6 N-acetylglucosaminyltransferase, core 2 beta1,6 N-acetylglucosaminyltransferase-I, core 2 beta1,6-N-acetyl-glycosaminyltransferase, core 2 beta1,6-N-acetylglucosaminyl transferase 1, core 2 beta1,6-N-acetylglucosaminyltransferase, core 2 beta1,6-N-acetylglucosaminyltransferase I, core 2 beta1,6-N-acetylglucosaminyltransferase-I, core 2 beta6-GlcNAc-transferase, core 2 beta6-N-acetylglucosaminyltransferase, core 2 GlcNAc-T, core 2 N-acetylglucosaminyltransferase, Core 2 N-acetylglucosaminyltransferase 2/M, core 2 N-acetylglucosaminyltransferase M, core 2 N-acetylglucosaminyltransferase-1, core 2 N-acetylglucosaminyltransferase-M, core 2 protein beta-1,6-N-acetylglucosaminyltransferase-mucin type, core 2beta 1,6 N-acetylglucosaminyltransferase, core 2beta-1,6-acetylglucosaminyltransferase, core 6-beta-GlcNAc-T, core 6-beta-GlcNAc-transferase A, core2 1-6-N-glucosaminyltransferase-I, core2 beta(1,6)-N-acetyglucosaminyltransferase-I, core2 beta-1,6-N-acetylglucosaminyltransferase, core2 beta-1,6-N-acetylglucosaminyltransferase-1, Core2beta1,6GnT type M, core2GnT, GCNT1, gcnt3, gcnt4, GnT-III, GNTM, More, mucin-type core 2 1,6-N-acetylglucosaminyltransferase enzyme, mucus-type core 2 beta1,6 N-acetylglucosaminyltransferase, O-glycosyl-oligosaccharide-glycoprotein N-acetylglucosaminyltransferase I, uridine diphosphoacetylglucosamine-mucin beta-(1-6)-acetylglucosaminyltransferase, uridine diphosphoacetylglucosamine-mucin beta-(1-6)-acetylglucosaminyltransferase A

ECTree

     2 Transferases
         2.4 Glycosyltransferases
             2.4.1 Hexosyltransferases
                2.4.1.102 beta-1,3-galactosyl-O-glycosyl-glycoprotein beta-1,6-N-acetylglucosaminyltransferase

Subunits

Subunits on EC 2.4.1.102 - beta-1,3-galactosyl-O-glycosyl-glycoprotein beta-1,6-N-acetylglucosaminyltransferase

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SUBUNIT
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
dimer
the monomer units of the observed dimer C2GnT possesses the GT-A fold and are connected by a disulfide bond between the Cys235 residues, quantum mechanical/molecular modeling using enzyme crystal structures, PDB IDs 2GAK and 2GAM, as templates. The structure of C2GnT contains two regions; the first (38-121) is composed of alpha-helices. The second region, which corresponds to the catalytic domain (122-428), is an alpha/beta/alpha structure consisting of a central six-stranded mixed beta-sheet. Four disulfide bonds are found in each monomer (Cys151-Cys199, Cys372-Cys381, Cys59-Cys413, and Cys100-Cys172), the remaining Cys217 is unpaired and located in the donor binding site. C2GnT may occur in an open conformation, and a closed conformation. The location of the C2GnT-conserved Glu320 residue structurally corresponds to the catalytic base found in other glycosyltransferases with the GT-A fold
monomer
additional information
-
in absence of dithiothreitol, one of the two free Cys residues (Cys217 and Cys235) is found to be engaged in an intermolecular bridge causing dimerization of the protein