RNA polymerases in plasma cells trav-ELL2 the beat of a different drum

Figure 2 Components of the super elongation complex. ELL2 is part of the super elongation complex important for releasing RNA polymerase II from pausing. Cdk9 phosphorylates the ser-2 of the heptad repeats in the carboxyl-terminal domain of RNAP-II, negative elongation factor negative elongation factor, and DRB sensitive factor the DRB-sensitive factor, which becomes activated. ELL2: Eleven lysine rich leukemia protein 2; Cdk9: Cyclin dependent kinase 9.