Figure 3. 2Fo-Fc electron density maps of mKateS158A and GmKate.
A. Chromophore configurations of mKateS158A at neutral pH. B. Chromophore configuration of GmKate at pH 7.4 (top panel), pH 10.0 (middle panel) and pH 4.0 (bottom panel). The density is contoured at 1.0σ for all maps. The occupancy of cis- and trans-chromophore was calculated during structure refinement.