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Cited by 444

The DOI matches its Crossref record; 27 of the 27 references it cites were found in a registry or an index.

Specific chemical and structural damage to proteins produced by synchrotron radiation

Open access
Weik, Martin, Ravelli, Raimond B. G., Kryger, Gitay, McSweeney, Sean, Raves, Maria L., Harel, Michal, Gros, Piet, Silman, Israel, Kroon, Jan, Sussman, Joel L.·2000·Proceedings of the National Academy of Sciences

Abstract

Radiation damage is an inherent problem in x-ray crystallography. It usually is presumed to be nonspecific and manifested as a gradual decay in the overall quality of data obtained for a given crystal as data collection proceeds. Based on third-generation synchrotron x-ray data, collected at cryogenic temperatures, we show for the enzymes Torpedo californica acetylcholinesterase and hen egg white lysozyme that synchrotron radiation also can cause highly specific damage. Disulfide bridges break, and carboxyl groups of acidic residues lose their definition. Highly exposed carboxyls, and those in the active site of both enzymes, appear particularly susceptible. The catalytic triad residue, His-440, in acetylcholinesterase, also appears to be much more sensitive to radiation damage than other histidine residues. Our findings have direct practical implications for routine x-ray data collection at high-energy synchrotron sources. Furthermore, they provide a direct approach for studying the radiation chemistry of proteins and nucleic acids at a detailed, structural level and also may yield information concerning putative “weak links” in a given biological macromolecule, which may be of structural and functional significance.

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Metadata

Authors
Weik, M., Ravelli, R. B. G., Kryger, G., McSweeney, S., Raves, M. L., Harel, M., Gros, P., Silman, I., Kroon, J., & Sussman, J. L.
Venue
Proceedings of the National Academy of Sciences
Published
2000-01-18
Volume
97
Issue
2
Pages
623-628
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2127432350
Cited by
444
References
27
FWCI
12.46
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Specific chemical and structural damage to proteins produced by synchrotron radiation. https://app.cochat.ai/papers/10.1073/pnas.97.2.623
The paper
Weik, M., Ravelli, R. B. G., Kryger, G., McSweeney, S., Raves, M. L., Harel, M., Gros, P., Silman, I., Kroon, J., & Sussman, J. L. (2000). Specific chemical and structural damage to proteins produced by synchrotron radiation. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.97.2.623

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