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Relative binding affinity of HK peptide formulations with siRNA. Relative binding affinity of four HK peptide formulations (H3K(+H)4b; H2K4b; (RGD-PEG)4H3K(+H)4b; (RGD-PEG)4H3K(+H)4b/H2K4b (RP-HK)) for Alexa 546-labeled siRNA was studied in 10 mM phosphate buffer, pH 7.0. Relative fluorescence intensity is the percentage of unbound siRNA after subtraction of background fluorescence. See Results section for further details.
