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O-linked β-N-acetyl-D-glucosamine(O-GlcNAc) transferase(OGT) is an essential enzyme in many cellular physiological catalytic reactions that regulates protein O-GlcNAcylation [1].Aberrant glycosylation by OGT has been linked to insulin resistance,diabetic complications,cancer and neurodegenerative diseases including Alzheimers.