acetylglucosaminyltransferase activity protein O-acetylglucosaminyltransferase activity https://github.com/geneontology/go-ontology/issues/23320 https://github.com/geneontology/go-ontology/issues/30193 Catalysis of the reaction: UDP-N-acetyl-D-glucosamine + [protein]-L-serine = UDP + [protein]-3-O-(N-acetyl-D-glucosaminyl)-L-serine, or UDP-N-acetyl-D-glucosamine + [protein]-L-threonine = UDP + [protein]-3-O-(N-acetyl-D-glucosaminyl)-L-threonine. Reactome:R-HSA-8879117 RHEA:48908 Reactome:R-HSA-9687828 RHEA:48904 pr O-GlcNAc transferase O-linked N-acetylglucosaminyltransferase GO:0097363 protein O-GlcNAc transferase activity 2012-07-24T01:46:51Z UDP-N-acetyl-D-glucosamine:protein-O-beta-N-acetyl-D-glucosaminyl transferase EC:2.4.1.255 molecular_function OGTase catalytic activity, acting on a protein