Taken together, these results raise the possibility that the MLL-ELL translocation could alter ELL-RNA polymerase II interactions that are not involved in regulation of elongation..     ///    "Notably, the MLL-ELL translocation results in deletion of a portion of this functional domain, and ELL mutants lacking sequences deleted by the translocation bind RNA polymerase II and are fully active in elongation, but fail to inhibit initiation. "