Figure 4 - full size

Figure 4.
FIG. 4. A, binding of Gleevec to Syk. Ligand difference electron density (2 F[observed]-F[calculated]) contoured at 1 . B, binding of Gleevec and staurosporine to Syk. Gleevec (yellow) binding to Syk in the compact cis-conformation mimics the structure and binding mode of staurosporine (salmon). The key residues are labeled, and hydrogen bonds are denoted with dashed lines. The images were prepared with Xfit (25).