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. 2012 Jan 19;7(1):e30431. doi: 10.1371/journal.pone.0030431

Figure 4. pH influence on OPBTc tertiary structure.

Figure 4

(A) Intrinsic spectra were recorded at 25°C from 305 to 400 nm using excitation wavelength of 295 nm at different pHs. (B) Near–UV CD spectra of OPBTc at different pHs. All near–UV CD spectra were recorded at 25°C from 250 to 320 nm.