.Interactions between the docked ATP molecules and the modeled CFTR’s NBD1–NBD2 dimer at the NBD1 site (a) and NBD2 site (b). The two panels show all the NBD
residues that have atoms within 5 A
˚ from the ATP molecules, except S573 in panel (a). Both the NBD residues and the ATP molecules are plotted in stick mode and colored by
atom type. For clarity, each ATP is enclosed by a molecular surface. The potential hydrogen bonds between the ATP and NBDs are shown in yellow dashed lines. The residues
forming hydrogen bondswithATP are labeled in magenta. The other important residues reported in literature are labeled in yellow. The figurewas prepared byUCSF Chimera
[37]