Figure 4: Interactions among the α- and β- subunits and the FXYD protein at the extracellular surface of the membrane. The role of the signature motif FXYD appears clear (Fig. 4). The first ...

Figure 2: Sequence analysis of proteins containing RCK domains. Figure 5: Structure of the MthK K + channel. The gating ring has an arrangement of eight identical RCK domains (Fig. 6a).

Thomas Blanchard, an incredibly imaginative filmmaker, placed potassium phosphate into dishes and photographed the ...