ArticleActa crystallographica. Section D, Structural biology2026
It started off as a Cys, how did it end up like this? Identifying the extent of unmodelled oxidatively modified cysteines within the Protein Data Bank.
Article in Acta crystallographica. Section D, Structural biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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5 authors.
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Abstract
Radiation damage to macromolecular structures remains a significant challenge for accurate structure solution by X-ray crystallography, leading to incorrect structural and chemical interpretation of the data. Site-specific radiation damage is insidious, typically unidentifiable solely from summary statistics, and is primarily discussed with reference to the predominant forms: disulfide-bond cleavage, metal-centre reduction and decarboxylation of acidic residues. A method is presented for identifying potentially oxidatively damaged cysteines by interrogating the accuracy of the built model within the electron density and the geometry of the difference density peaks surrounding a cysteine. We also highlight that cysteines located within protein active sites or that are in hydrolases are predisposed to this damage.
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