Examples of electron density

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Figures from Bernhard Rupp's book "Biomolecular Crystallography" (with permission by the author)

There is more material (all figures, citations, tutorials) at the book's overview page.

You can see the full-size, high-resolution figure by clicking on it.

Cis-peptide bond and its electron density

BMC 2-9.jpg


Covalently modified residues

BMC 2-27.JPG


Covalent binding of ligands

BMC 2-30.jpg


Additives mediating intermolecular contacts

BMC 3-16.jpg

Heavy-atom derivatization of a protein

BMC 3-42.jpg


The trimeric bacterial outer membrane protein OprP

BMC 4-18.jpg

Chemically modified lysine residue (Dimethyllysine)

BMC 4-19.jpg


Glycosylated residues stabilizing homodimer

BMC 4-20.jpg


Uranium-atom solution and Fourier truncation ripples

BMC 10-10.jpg


Solvent molecules (water, MPD, Mg2+)

BMC 12-30.JPG

Pete Dunten noticed that PDB 2nls should most likely be 1nls .


Split side-chain conformations

BMC 12-33.JPG


Se-Met residues and chloride ion

BMC 12-42.JPG