label: RNA polymerase II C-terminal domain O-GlcNAc transferase activity
label_lc: rna polymerase ii c-terminal domain o-glcnac transferase activity
description: "Catalysis of the reaction: UDP-N-acetyl-D-glucosamine + RNA polymerase II large subunit CTD heptapeptide repeat (YSPTSPS) = UDP + RNA polymerase II large subunit CTD heptapeptide repeat 3-O-(N-acetyl-D-glucosaminyl)-L-serine."