X-inactivation normalizes O-GlcNAc Transferase levels and generates an O-GlcNAc-depleted Barr body
O-GlcNAc Transferase (OGT) catalyzes protein O-GlcNAcylation, an abundant and dynamic nuclear and cytosolic modification linked to epigenetic regulation of gene expression.The steady-state levels of O-GlcNAc are influenced by extracellular glucose concentrations suggesting that O-GlcNAcylation may serve as a metabolic sensor.Intriguingly, human OGT