Cited by 33Protein Structure and DynamicsBiochemical and Structural CharacterizationChemical Synthesis and Analysis

The designability of protein switches by chemical rescue of structure: mechanisms of inactivation and reactivation

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Xia, Yan, DiPrimio, Nina, Keppel, Theodore R., Vo, Binh, Fraser, Keith, Battaile, Kevin P., Egan, Chet, Bystroff, Christopher +4 more·2013·Journal of the American Chemical Society

Abstract

The ability to selectively activate function of particular proteins via pharmacological agents is a longstanding goal in chemical biology. Recently, we reported an approach for designing a de novo allosteric effector site directly into the catalytic domain of an enzyme. This approach is distinct from traditional chemical rescue of enzymes in that it relies on disruption and restoration of structure, rather than active site chemistry, as a means to achieve modulate function. However, rationally identifying analogous de novo binding sites in other enzymes represents a key challenge for extending this approach to introduce allosteric control into other enzymes. Here we show that mutation sites leading to protein inactivation via tryptophan-to-glycine substitution and allowing (partial) reactivation by the subsequent addition of indole are remarkably frequent. Through a suite of methods including a cell-based reporter assay, computational structure prediction and energetic analysis, fluorescence studies, enzymology, pulse proteolysis, X-ray crystallography, and hydrogen-deuterium mass spectrometry, we find that these switchable proteins are most commonly modulated indirectly, through control of protein stability. Addition of indole in these cases rescues activity not by reverting a discrete conformational change, as we had observed in the sole previously reported example, but rather rescues activity by restoring protein stability. This important finding will dramatically impact the design of future switches and sensors built by this approach, since evaluating stability differences associated with cavity-forming mutations is a far more tractable task than predicting allosteric conformational changes. By analogy to natural signaling systems, the insights from this study further raise the exciting prospect of modulating stability to design optimal recognition properties into future de novo switches and sensors built through chemical rescue of structure.

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  • Protein structure and function are most frequently modulated indirectly through control of protein stability.

    “A suite of computational and experimental methods, collectively led to the insight that protein structure and function were most frequently modulated indirectly through control of protein stability (Xia et al., 2013).”

    From Allostery in Its Many Disguises: From Theory to Applications (2019) · cites this paper as Xia et al., 2013

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  1. [18]Leaver-Fay A Tyka M Lewis SM Lange OF Thompson J Jacak R Kaufman K Renfrew PD Smith CA Sheffler W Davis IW Cooper S Treuille A Mandell DJ Richter F Ban YE Fleishman SJ Corn JE Kim DE Lyskov S Berrondo M Mentzer S Popovic Z Havranek JJ Karanicolas J Das R Meiler J Kortemme T Gray JJ Kuhlman B Baker D Bradley P Methods Enzymol 2011 487 545 21187238 PMC4083816
  2. [52]Vallee-Belisle A Ricci F Plaxco KW J Am Chem Soc 2012 134 2876 22239688 PMC3522460

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Authors
Xia, Y., DiPrimio, N., Keppel, T. R., Vo, B., Fraser, K., Battaile, K. P., Egan, C., Bystroff, C., Lovell, S., Weis, D. D., Anderson, J. C., & Karanicolas, J.
Affiliations
  • University of Kansas (US)
  • University of California, Berkeley (US)
  • Hauptman-Woodward Medical Research Institute (US)
  • Rensselaer Polytechnic Institute (US)
Corresponding author
Karanicolas, John
Venue
Journal of the American Chemical Society
Published
2013-12-06
Volume
135
Issue
50
Pages
18840-18849
ISSN
  • 0002-7863 (ISSN-L)
  • 1520-5126
OpenAlex
W2132125753
Cited by
33
References
61
Citations by year
2026: 2 · 2025: 1 · 2024: 1 · 2023: 2 · 2022: 3 · 2021: 2 · 2020: 1 · 2019: 6 · 2018: 4 · 2017: 3 · 2016: 4 · 2015: 3 · 2014: 1
FWCI
1.19
Type
journal article
Language
en
Open access
Locations
  • Journal of the American Chemical Society (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • KU ScholarWorks (University of Kansas) (acceptedVersion, other-oa)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
  • National Institute of General Medical Sciences (R01GM099827, P20GM103420)
  • National Center for Research Resources (P20RR017708)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Structure and Dynamics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Biochemical and Structural Characterization
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Chemical Synthesis and Analysis
Keywords
protein switches, indole, protein stability, allosteric modulation, enzyme inactivation, protein reactivation, protein designability
MeSH terms
Electrophoresis, Polyacrylamide Gel, Indoles, Mutation, Protein Conformation, Proteins, Genes, Reporter, Green Fluorescent Proteins

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