Figure 3 - full size

 

Figure 3.
Fig. 3. [(A) and (B)] Functional mutations map within the phosphate binding tunnel, a large internal cavity that traverses the subunit, shown in red. The majority of known function-impairing mutants map to the surface of this tunnel, positioned between the terminal phosphate of the bound nucleotide and the putative kinase-binding face. Two orthogonal views are shown.

The above figure is reprinted by permission from the AAAs: Science (2007, 315, 1726-1729) copyright 2007.