Fig. 8
From: Crystal structures of AztD provide mechanistic insights into direct zinc transfer between proteins

Docking model of apo PdAztC (magenta) and PdAztD (green). a Intact complex showing surface and secondary structure of each protein, zinc is shown as a gray sphere and sodium shown as a purple sphere. Zoomed region of the complex showing the positions of b zinc-binding residues and c interactions mediated by important loop residues of AztC. Side chains are shown as sticks colored according to element, zinc is shown as a gray sphere and sodium shown as a purple sphere. d Holo AztC (yellow, PDB ID: 5W57) aligned with apo AztC in the AztC/AztD complex showing the position of relevant features. Side chains are shown as sticks colored according to element, zinc is shown as a gray sphere. The sodium ion of apo AztC is omitted for clarity