Acta Crystallogr Sect F Struct Biol Cryst Commun. 2011 Apr 1;67(Pt 4):424-8. Epub 2011 Mar 24.

Crystal structure of small protein crambin at 0.48 Å resolution.

Schmidt A, Teeter M, Weckert E, Lamzin VS.

Source

EMBL Hamburg, c/o DESY, Notkestrasse 85, D-22607 Hamburg, Germany. andrea@embl-hamburg.de

Abstract

With the development of highly brilliant and extremely intense synchrotron X-ray sources, extreme high-resolution limits for biological samples are now becoming attainable. Here, a study is presented that sets the record in crystallographic resolution for a biological macromolecule. The structure of the small protein crambin was determined to 0.48 Å resolution on the PETRA II ring before its conversion to a dedicated synchrotron-radiation source. The results reveal a wealth of details in electron density and demonstrate the possibilities that are potentially offered by a high-energy source. The question now arises as to what the true limits are in terms of what can be seen at such high resolution. From what can be extrapolated from the results using crystals of crambin, this limit would be at approximately 0.40 Å, which approaches that for smaller compounds.

PMID:: 21505232; [PubMed - indexed for MEDLINE]
PMCID:: PMC3080141; [Available on 2013/4/1]

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Structures reported by this article

Crystal Structure Of Small Protein Crambin At 0.48 A Resolution

PDB: 3NIR

Source: Crambe hispanica subsp. abyssinica

Method: X-Ray Diffraction

Resolution: 0.48 Å

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