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. Author manuscript; available in PMC: 2014 Feb 24.
Published in final edited form as: J Am Chem Soc. 2012 Feb 13;134(8):3647–3650. doi: 10.1021/ja211113n

Table 2.

CD Transition pH and pKa for PA1–PA4a

molecule CD transition pH average pKa
PA1 6.6 4.66 ± 0.10
PA2 6.6 4.94 ± 0.09
PA3 6.2 4.86 ± 0.11
PA4 6.0 4.70 ± 0.10
a

For 10 μM PA1–PA4, measured in 150 mM NaCl and 2.2 mM CaCl2.