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Cited by 493

The DOI matches its Crossref record; 7 of the 7 references it cites were found in a registry or an index.

Reversible targeting of noncatalytic cysteines with chemically tuned electrophiles

Open access
Serafimova, Iana M, Pufall, Miles A, Krishnan, Shyam, Duda, Katarzyna, Cohen, Michael S, Maglathlin, Rebecca L, McFarland, Jesse M, Miller, Rand M, Frödin, Morten, Taunton, Jack·2012·Nature Chemical Biology

Abstract

Targeting noncatalytic cysteine residues with irreversible acrylamide-based inhibitors is a powerful approach for enhancing pharmacological potency and selectivity. Nevertheless, concerns about off-target modification motivate the development of reversible cysteine-targeting strategies. Here we show that electron-deficient olefins, including acrylamides, can be tuned to react with cysteine thiols in a rapidly reversible manner. Installation of a nitrile group increased the olefins’ intrinsic reactivity, yet paradoxically eliminated the formation of irreversible adducts. Incorporation of these electrophiles into a noncovalent kinase recognition scaffold produced slowly dissociating, covalent inhibitors of the p90 ribosomal protein S6 kinase, RSK. A cocrystal structure revealed specific noncovalent interactions that stabilize the complex by positioning the electrophilic carbon near the targeted cysteine. Disruption of these interactions by protein unfolding or proteolysis promoted instantaneous cleavage of the covalent bond. Our results establish a chemistry-based framework for engineering sustained covalent inhibition without accumulating permanently modified proteins and peptides.

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Crossref · 10.1038/nchembio.925

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Metadata

Authors
Serafimova, I. M., Pufall, M. A., Krishnan, S., Duda, K., Cohen, M. S., Maglathlin, R. L., McFarland, J. M., Miller, R. M., Frödin, M., & Taunton, J.
Venue
Nature Chemical Biology
Published
2012-04-01
Volume
8
Issue
5
Pages
471-476
ISSN
  • 1552-4450 (ISSN-L)
  • 1552-4469
OpenAlex
W2153977062
Cited by
493
References
7
FWCI
11.81
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Reversible targeting of noncatalytic cysteines with chemically tuned electrophiles. https://app.cochat.ai/papers/10.1038/nchembio.925
The paper
Serafimova, I. M., Pufall, M. A., Krishnan, S., Duda, K., Cohen, M. S., Maglathlin, R. L., McFarland, J. M., Miller, R. M., Frödin, M., & Taunton, J. (2012). Reversible targeting of noncatalytic cysteines with chemically tuned electrophiles. Nature Chemical Biology. https://doi.org/10.1038/nchembio.925

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.