= RNA polymerase II =

Elongation Forms and antibodies

|| Ab || polymerase ||
|| 4H8 ||  recognizes both the phosphorylated and unphosphorylated forms of the largest subunit of RNA pol II ||
|| phospho Ser2 || RNA pol II phosphorylated at serine 2 is enriched over the gene body and is associated with transcriptional elongation ||
|| phospho Ser5 || RNA pol II Serine 5 phosphorylation is confined to promoter regions and is necessary for the initiation of transcription. ||