GlcNAc-transferases

Yang, X., Zhang, F., and Kudlow, J. E. (2002). Recruitment of O-GlcNAc transferase to promoters by corepressor mSin3A Coupling protein O-GlcNAcylation to transcriptional repression. Cell 110, 69-80. 

Akimoto, Y., Comer, F.I., Cole, R.N., Kudo, A., Kawakami, H., Hirano, H. and Hart, G.W. (2003) Localization of the O-GlcNAc transferase and 0-GlcNAc-modified proteins in rat cerebellar cortex. Brain Res. 966, 194-205. 

PolyLacNAc can be extended from sugars attached to either the 3 or 6 position of the initiating GalNAc however, addition to the 6 (upper) branch is more common (Fig. 3c). Additional branching can be introduced into the LacNAc backbone by the action of pi-6 GlcNAc-transferases, including the previously... 

The GT-B fold family includes most prokaryotic enzymes that produce secondary metabolites, like the antibiotics streptomycin, oleandomycin (Fig. 1) and vancomycin, and important bacterial cell wall precursors. It is also predicted to contain the vitally important 0-GlcNAc transferase that modifies many nuclear and cytoplasmic proteins and influences gene transcription. The first glycosyltransferase structure reported in 1994 was for the GT-B fold enzyme, P-glucosyltransferase (BGT) from bacteriophage T4 (22). This enzyme attaches glucose to modified... 

GT31, 63-GlcNAc-transferase (fringe) Mfng Mus musculus 1 [367]... 

GT28, 64-GlcNAc-transferase MurG Escherichia coli 1 [388]... 

Bisected penta-antennary oligosaccharide found in hen ovomucoid. The GlcNAc-transferases (named with Roman numerals) are responsible for the addition of the GlcNAc residues that initiate antennae. The branches present in various multiantennary and bisected N-glycans are indicated. [Reproduced with permission from I. Brockhausen, Clinical aspects of glycoprotein biosynthesis. Crit. Rev. Clin. Lab. Sci. 30 68 (1993).]... 

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