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. 2014 Dec 3;54(2):377–388. doi: 10.1021/bi501243y

Figure 7.

Figure 7

Spectra from Figure 2 over the 1680–1800 cm–1 region: (A) CaChR1 in H2O, (B) CaChR1 in H2O regenerated with A1 retinal, (C) CaChR1 in H2O regenerated with A2 retinal, (D) CaChR1 in H2O regenerated with [15-13C,15-2H]retinal, (E) CaChR1 in H2O regenerated with [14,15-2H2]retinal, and (F) CaChR1 in D2O. Arrows indicate shifts of difference bands due to H–D exchange. Y axis markers are approximately 0.5 mOD for all spectra. See the discussion in the Supporting Information regarding results shown in spectra B–F.