Figure 3.
Fig. 3. Cross-sections of the transmembrane region of
Ca^2+-ATPase. van der Waals surfaces of E1·AlF ·ADP
(a) and E2·BeF (–TG)
(b). Red colors represent acidic residues. Dotted circles in b
indicate the positions of Ca^2+ observed in E1·AlF ·ADP
(a). The images shown were prepared with PyMol (34).
·ADP
(a) and E2·BeF 
(–TG)
(b). Red colors represent acidic residues. Dotted circles in b
indicate the positions of Ca^2+ observed in E1·AlF