Figure 3 - full size

 

Figure 3.
Figure 3. The Connecting LinkerClose-up of interactions between R2, R3, and the linker. The protein backbone is shown as a ribbon, and amino acid residues are drawn in a ball-and-stick representation. R2 is colored blue, R3 is green, and the linker is red.

The above figure is reprinted by permission from Cell Press: Cell (1999, 98, 537-546) copyright 1999.