Electron density maps: Difference between revisions
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[[Protein Data Bank]] (PDB) | [[Protein Data Bank]] (PDB) | ||
were determined by | were determined by | ||
[[X-ray crystallography]]. | [[X-ray crystallography]]. The direct results of crystallographic experiments are electron density maps. Examining the correspondence between the electron density map and the published molecular model reveals the levels of uncertainty in the model. | ||
==Electron Density Maps | ==Electron Density Maps from Crystallography== | ||
An [[X-ray crystallography|X-ray crystallographic experiment]] produces an | |||
electron density map | electron density map | ||
for the average | for the average | ||
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Electron Density Map Server]. | Electron Density Map Server]. | ||
==Why Look At Electron Density Maps?== | |||
Examining the correspondence between the model and the electron density map (EDM) provides much clearer insight into the uncertainties in the model than does merely examining the model itself (see also | Examining the correspondence between the published model [[PDB file]] and the electron density map (EDM) provides much clearer insight into the uncertainties in the model than does merely examining the model itself (see also | ||
[[Quality assessment for molecular models]]). Crystallographers generally use "heavy duty" visualization and modeling software such as | [[Quality assessment for molecular models]]). | ||
Crystallographers generally use "heavy duty" visualization and modeling software such as | |||
[[Molecular_modeling_and_visualization_software|Coot]] | [[Molecular_modeling_and_visualization_software|Coot]] | ||
or | or | ||
