(
A) Virus-packaging cells transiently expressing each MLL fusion construct were analyzed by western blotting with indicated antibodies. (
B) Recruitment of exogenously expressed AF4 or EAF1 by ELL. HEK293TL cells (
Okuda et al., 2015), which harbor GAL4-responsive reporter, were transfected with FLAG-tagged GAL4 fusion proteins, xAF4, and HA-tagged EAF1 (EAF1h), and were subjected to chromatin immunoprecipitation (ChIP)-qPCR analysis. A qPCR probe near the GAL4-responsive elements (UAS) was used. The ChIP signals were expressed as the percent input with error bars (mean ± SD of PCR triplicates). TATA: TATA box; LUC: luciferase. (
C) Association of ELL with exogenously expressed AF4 or EAF1 on chromatin. Immunoprecipitation (IP)-western blotting of the chromatin fraction of HEK293TL cells transiently expressing various FLAG-tagged GAL4-ELL proteins along with xAF4 and EAF1h was performed.