Extended Data Fig. 8: Identification of new elements and map quality.

a, The current density around CLA834-835 is shown in iso-surface representation at a local resolution of 2.3 Å. Three water molecules involved in chlorophyll coordination are identified. Updated libraries are used for correct chlorophyll modeling. b, The same region from X-ray study at 2.4 Å resolution²⁰ lacks the density for waters, whereas the modeled water molecule has no density, and Mg atoms are not in the correct plane. c, Close up views of newly identified elements, coordination and chemical environment with the density map. d, An example of a mono-hydrated chlorophyll with the corresponding density. e, An example of a di-hydrated chlorophyll with the corresponding density. Local resolution and map levels are indicated.