
Summary of RRE IIB footprinting studies. (Open circles) Nucleotides that were found to be protected in two different footprinting methods. Protection observed in lead acetate and RNAse A footprinting experiments. (Filled circles) Nucleotides appeared protected in all three footprinting methods. Protection observed in RNAse T1 footprinting experiments. (Arrows) Enhancement of cleavage observed in lead acetate and RNAse A footprinting experiments.










