The Metal Geometry tool facilitates analysis of metal-binding sites. It lists potential metal-coordinating atoms (nearby nucleophilic heteroatoms) and suggests likely coordination geometries. An idealized geometry can be depicted with solid arrows, as shown in the figure for the octahedral coordination of Mn⁺⁺ by six atoms, and the coordination pseudobonds in the structure can be updated to match the chosen geometry.

Peroxiredoxins are enzymes that help cells cope with stressors such as high levels of reactive oxygen species. The image shows a decameric peroxiredoxin from human red blood cells (Protein Data Bank entry 1qmv), styled as a holiday wreath.

See also the RBVI holiday card gallery.

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