Figure 3 - full size

Figure 3.
Figure 3. Stereo images of the site of mutation of the least-squares fit between the double mutant, bnHis102→Ala-bsTyr29→Phe, and pseudo wild-type structure. In the pseudo wild-type structure, barnase is coloured white and barstar yellow; the double mutant is coloured black. Additional water molecules, observed in the double mutant, which fill the site of mutation are also shown. (a) The AD complex. Four additional water molecules fill the created pocket. (b) The BE complex. Residues which pack against loop 2bs from a symmetry related chain, A′, are shown in black. The Figures were drawn with Bobscript [Esnouf 1997 and Kraulis 1991].