EOG873S6G GO:0016591 13/62 DNA-directed RNA polymerase II, holoenzyme cellular_component "Large protein complex composed of the RNA polymerase core complex and a variety of other proteins including transcription factor complexes TFIIA, D, E, F, and H which are required for promoter recognition, and the Mediator subcomplex. Catalyzes the synthesis of eukaryotic pre-mRNA." [GOC:jl, PMID:15196470, Wikipedia:Rna_polymerase_ii]