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. Author manuscript; available in PMC: 2013 Sep 6.
Published in final edited form as: J Phys Chem B. 2012 Aug 27;116(35):10631–10638. doi: 10.1021/jp211296e

Figure 6.

Figure 6

A representative PheCN fluorescence decay curve of HP35-P-W64A in 20 mM phosphate buffer (pH 7), as well as a single-exponential and a triple-exponential fits to the data, as indicated. The triple-exponential fit yielded the following time constants (relative amplitude): τ1 = 0.55 ns (22%), τ2 = 2.61 ns (18%), and τ3 = 6.63 ns (60%). Shown in upper panel are the weighted residuals of the triple-exponential fit. Also shown in the inset is the lifetime distribution obtained from maximum entropy analysis.