Figure 7.
Retained E2F1 binding activity of retinoblastoma protein (pRb)D326V. Flag-tagged WT pRb (WT) or pRbD326V (Mut) were mixed with DP-1 and each of E2F1/2/3. The pRb were then immunoprecipitated (IP) with (α-Flag) or without (none) anti-Flag antibody. The immunoprecipitates were immunoblotted (IB) with anti-pRb, anti-E2F1, anti-E2F2 or anti-E2F3 antibody.