Fig. 7. Stereo view of a C_α trace of the Trbp111 dimeric structure with all single site mutations described in Figure 6 highlighted in ball-and-stick representation. Side chains of residues found to be important in tRNA binding are in black (on the top side of the dimer) and are labeled. Residues at which an alanine substitution did not correlate with a measurable effect on tRNA binding are shown in gray (bottom side of the dimer). Loops L2 and L6 are indicated. The figure was made with MOLSCRIPT (Kraulis, 1991).