obsolete transcription factor activity, core RNA polymerase II binding (obsolete GO:0000991)
OBSOLETE. Binding to an RNA polymerase II (Pol II) complex, typically composed of twelve subunits, in order to modulate transcription. A protein binding transcription factor may or may not also interact with the template nucleic acid (either DNA or RNA) as well.
core RNA polymerase II binding transcription factor activity
exact