Fig. 6: Proposed Pi import cycle of PstSCAB.
From: Molecular mechanism of phosphate import by the bacterial PstSCAB transporter
The states with or without experimental structures are highlighted by solid and dashed boxes, respectively. ATP and ADP molecules are represented by stars and rhombs, respectively. Pi molecules are shown as spheres. Question marks were used to indicate that it is unknown during which state PstS became disassociated with PstCAB.
