FIGURE 4.

R1 RNA binds p65₂ with a 1:1 stoichiometry. R1 RNA titration strategy to determine the stoichiometry of the p65₂/R1 RNA complex. Labeled R1 RNA was incubated alone (lane 1) or in the indicated increasing concentrations relative to p65₂ (50 nM) (lanes 2–7).