Extended Data Fig. 2: Cryo-EM map quality.
From: Structure of plant photosystem I in a native assembly state defines PsaF as a regulatory checkpoint
Left, the current density around CLA854 is shown in iso-surface representation at a local resolution of 2.0 Ã…. A water molecule involved in the chlorophyll coordination is modelled in the density. Right, the same region from the X-ray study at 2.4 Ã… resolution13 lacks the density for the water, and the modeled Mg atom is not in the correct plane.
