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. Author manuscript; available in PMC: 2008 Aug 30.
Published in final edited form as: J Am Chem Soc. 2006 Feb 22;128(7):2160–2161. doi: 10.1021/ja055971z

Figure 4.

Figure 4

Cross sections of HSQC spectra of 13C ILV labeled Bcl-xL corresponding to V91γ1 resonance at different compound to protein concentration ratios. Above: first-generation compound (KDapp 80μM, causes conformational exchange in the bound state of the protein); below: modified compound (KDapp 20μM, clean intermediate chemical exchange).