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Secondary structure of CbpA domains. (A) CbpA constructs used in this study. (B) CD spectra for CbpA-N (violet trace), -R1 (blue trace), -R2 (red trace) and -NR12 (green trace). (C) Thermal denaturation traces obtained by measuring CD ellipticity at 222 nm at different temperatures. The coloring scheme is as in (B).
