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. Author manuscript; available in PMC: 2011 Oct 1.
Published in final edited form as: J Am Soc Mass Spectrom. 2010 Mar 28;21(10):1660–1667. doi: 10.1016/j.jasms.2010.03.030

Figure 2.

Figure 2

Traditional PLIMSTEX (a) and dPLIMSTEX (b) fitting curves for CaM 4Ca2+: β-endorphin. The error bars shown for the data points represent the standard deviation from duplicate independent experiments. The D0 point in (a), is a single point for the apo state of the protein and also a “fit parameter”, whereas for (b), the D0 mass is for the unbound peptide, as such, D0 is depicted as a line representing the asymptote for the other curves in (b).