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Peptide concentration-dependent conformational transition of the CB1 C-tail peptide. CD spectra were recorded from 190 to 250 nm at various concentrations of the peptide in (A) 10 mM sodium phosphate, pH 7.2 or (B) 50 mM DPC. The insets show helicity as a function of increasing peptide concentration. Data represent the average of four experiments. The legends in the figure indicate the peptide concentrations examined.
