Acetylglucosamine Article 2 Humans 2 Protein Processing, Post-Translational 2 beta n acetylhexosaminidase 2 controlled study 2 human 2 metabolism 2 n acetylglucosamine 2 nonhuman 2 protein processing 2 Cell Nucleus 1 Click Chemistry 1 Diabetes Mellitus, Type 2 1 Glycosylation 1 N-Acetylglucosaminyltransferases 1 O-GlcNAc 1 O-GlcNAc transferase 1 O-GlcNAc transferase (OGT) 1 O-GlcNAcase (OGA) 1 O-linked 1 Proteins 1 Substrate recognition 1 acylation 1 affinity chromatography 1 amino terminal sequence 1 analysis 1 animal cell 1 asparagine 1 aspartic acid 1