1ejg

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CRAMBIN AT ULTRA-HIGH RESOLUTION: VALENCE ELECTRON DENSITY.

Structural highlights

1ejg is a 1 chain structure with sequence from Crambe hispanica subsp. abyssinica. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 0.54Å
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

CRAM_CRAAB The function of this hydrophobic plant seed protein is not known.

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

The charge density distribution of a protein has been refined experimentally. Diffraction data for a crambin crystal were measured to ultra-high resolution (0.54 A) at low temperature by using short-wavelength synchrotron radiation. The crystal structure was refined with a model for charged, nonspherical, multipolar atoms to accurately describe the molecular electron density distribution. The refined parameters agree within 25% with our transferable electron density library derived from accurate single crystal diffraction analyses of several amino acids and small peptides. The resulting electron density maps of redistributed valence electrons (deformation maps) compare quantitatively well with a high-level quantum mechanical calculation performed on a monopeptide. This study provides validation for experimentally derived parameters and a window into charge density analysis of biological macromolecules.

Accurate protein crystallography at ultra-high resolution: valence electron distribution in crambin.,Jelsch C, Teeter MM, Lamzin V, Pichon-Pesme V, Blessing RH, Lecomte C Proc Natl Acad Sci U S A. 2000 Mar 28;97(7):3171-6. PMID:10737790[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

  1. Jelsch C, Teeter MM, Lamzin V, Pichon-Pesme V, Blessing RH, Lecomte C. Accurate protein crystallography at ultra-high resolution: valence electron distribution in crambin. Proc Natl Acad Sci U S A. 2000 Mar 28;97(7):3171-6. PMID:10737790

Contents


PDB ID 1ejg

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