PathwayStep235 PathwayStep229 PathwayStep250 PathwayStep247 PathwayStep263 PathwayStep261 RNA Polymerase II Transcription Pre-Initiation And Promoter Opening RNA Polymerase II Transcription Initiation And Promoter Clearance RNA Polymerase II Transcription GENE ONTOLOGYGO:0006366 Reactome Database ID Release 4373857 Reactome, http://www.reactome.org ReactomeREACT_1366 RNA Polymerase II Pre-transcription Events RNA Polymerase II Transcription Termination RNA Polymerase II Transcription Elongation RNA Pol II CTD phosphorylation and interaction with CE