Figure 1
Crystal structures of full-length VanRSc in the inactive and activated states. The receiver and DNA-binding domains are indicated. Secondary structures are colored as follows: β-strands, red; α-helices, cyan; loops, magenta. Numbering is shown for α-helices and β-strands. Helix α4 is absent from the inactive VanRSc structure, reflecting presumptive disorder. The loop connecting the receiver and DNA-binding domains is fully ordered in the inactive state, but is disordered at His121 in the activated state (indicated by dashes in the right-hand structure). Stereo versions of both panels can be found in Supplementary Fig. S1. |