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Root mean square (RMS) values as a function of protein concentration obtained from tethered particle motion experiments with (A). Sso10a1 and (B). Sso10a2 in a buffer containing 20 mM NaCl (red) or 100 mM NaCl (black). Open circles on the y-axis represent the RMS value for bare DNA (0 nM). Error bars represent the standard error of the mean. The typical RMS value of beads stuck to the flow cell surface is 45 nm. Dashed lines are a guide to the eye.
