Figure 2.
pH dependence of CatchER absorbance. (A) The pH titration from 5 to 9.3; (B) the pKa fitting by eq 2. The pH titration was carried out using 5 M KOH in a buffer cocktail consisting of 10 mM MES, 10 mM MOPS, and 10 mM CAPS, pH 5.0.
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