Fig. 6.
Surface representation of the atomic models for the phosphorylation site in the E2P and E2∼P analogs. The van der Waals surface is superimposed on the atomic model of E2·BeF3−(TG) (a) or E2·AlF4−(TG) (b) with explicit hydrogens. Green spheres represent the atoms in the A-domain; yellow spheres represent those in the P-domain. Phosphate analogs (dimensions taken from phosphate), Mg2+ (blue violet spheres), and water (red and cyan spheres) are shown in atom colors. The white arrow in b indicates the attacking water molecule. Thr-353 is located on the front side and not seen here.