Term Name:	RNA polymerase II CTD heptapeptide repeat P3 isomerase activity
Synonyms:	RNA polymerase II C-terminal domain P3 isomerase activity
Definition:	Catalysis of the reaction: RNA polymerase II large subunit CTD heptapeptide repeat (consensus YSPTSPS) cis-proline (omega=180) (position 3) = RNA polymerase II large subunit trans-proline (omega=0) (position 3).
Ontology:	GO: Molecular Function [GO:0140839]    QuickGO    AmiGO