Fig. 3: PstSCAB structure in the pretranslocation state.
From: Molecular mechanism of phosphate import by the bacterial PstSCAB transporter
a, b Cryo-EM density map (a) and cartoon representations (b) of PstSCAB structure in the pretranslocation state. c The Pi binding pocket in PstS and the bound Pi, with its electron density shown as mesh (contoured at rmsd threshold of 3 Å). d–f Interactions between the N-lobe of PstS and PstA (d), between the C-lobe of PstS and PstA (e), and between the P1 and P3 loop of PstC and PstS (f), corresponding to the regions boxed in (b). In b, the position of introduced cysteins is shown as yellow spheres. In c, d, hydrogen bonds are shown as green dashed lines.
