Electron density maps: Difference between revisions
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Electron density values fill 3-dimensional space of the map (see this interactive visualization). The standard deviation of these values, sigma, is used as a unit of electron density. | Electron density values fill 3-dimensional space of the map (see this interactive visualization). The standard deviation of these values, sigma, is used as a unit of electron density. | ||
====Temperature=== | ====Temperature==== | ||
The agreement between observed electron density and an atom in the model is quantitated in the PDB file as the atom's [[temperature]] (also called "B factor"). Thus by coloring the atomic model by temperature, you can see where the electron density fits well vs. poorly, without actually displaying the electron density. In [[FirstGlance]], in the Tools tab, "Local Uncertainty" colors by temperature. | The agreement between observed electron density and an atom in the model is quantitated in the PDB file as the atom's [[temperature]] (also called "B factor"). Thus by coloring the atomic model by temperature, you can see where the electron density fits well vs. poorly, without actually displaying the electron density. In [[FirstGlance]], in the Tools tab, "Local Uncertainty" colors by temperature. | ||
