Electron density maps: Difference between revisions
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===2Fo-Fc Map=== | ===2Fo-Fc Map=== | ||
2Fo-Fc is two times the observed (experimental) density minus the density calculated from the current atomic model. It shows how well the observed | 2Fo-Fc is two times the observed (experimental) density minus the density calculated from the current atomic model. It shows how well the observed density fits around the atomic model<ref name="silvaggi" />. Likely errors are represented by (i) substantial density containing no atom, or (ii) atoms with little or no density. The isomesh typically represents the boundary at 1 sigma. | ||
====Isomesh==== | ====Isomesh==== | ||
