Figure 2: Hgb at 3.2 Å resolution.
From: Cryo-EM structure of haemoglobin at 3.2 Å determined with the Volta phase plate
(a) The iron atom of the prosthetic haem group is coordinated by the proximal histidine residue, as evidenced by a strong density connecting them. (b) Side-chain details and putative water molecules in the 3D electron scattering potential map (red spheres).
