1ejg

From Proteopedia

Jump to: navigation, search
1ejg, resolution 0.54Å ()
Related: 1cbn, 1crn, 1ab1, 1cnr
Resources: FirstGlance, OCA, RCSB, PDBsum
Coordinates: save as pdb, mmCIF, xml


Contents

CRAMBIN AT ULTRA-HIGH RESOLUTION: VALENCE ELECTRON DENSITY.

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

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

Function

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

About this Structure

1ejg is a 1 chain structure with sequence from Crambe hispanica subsp. abyssinica. Full crystallographic information is available from OCA.

Reference

  • 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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Personal tools