Cited by 28Enzyme Structure and FunctionInsect Resistance and GeneticsEntomopathogenic Microorganisms in Pest Control

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De novo determination of mosquitocidal Cry11Aa and Cry11Ba structures from naturally-occurring nanocrystals

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Abstract

Cry11Aa and Cry11Ba are the two most potent toxins produced by mosquitocidal Bacillus thuringiensis subsp. israelensis and jegathesan , respectively. The toxins naturally crystallize within the host; however, the crystals are too small for structure determination at synchrotron sources. Therefore, we applied serial femtosecond crystallography at X-ray free electron lasers to in vivo-grown nanocrystals of these toxins. The structure of Cry11Aa was determined de novo using the single-wavelength anomalous dispersion method, which in turn enabled the determination of the Cry11Ba structure by molecular replacement. The two structures reveal a new pattern for in vivo crystallization of Cry toxins, whereby each of their three domains packs with a symmetrically identical domain, and a cleavable crystal packing motif is located within the protoxin rather than at the termini. The diversity of in vivo crystallization patterns suggests explanations for their varied levels of toxicity and rational approaches to improve these toxins for mosquito control.

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Metadata

Authors
Tetreau, G., Sawaya, M. R., De Zitter, E., Andreeva, E. A., Banneville, A.-S., Schibrowsky, N. A., Coquelle, N., Brewster, A. S., Grünbein, M. L., Kovacs, G. N., Hunter, M. S., Kloos, M., Sierra, R. G., Schiro, G., Qiao, P., Stricker, M., Bideshi, D., Young, I. D., Zala, N., Engilberge, S., Gorel, A., Signor, L., Teulon, J.-M., Hilpert, M., Foucar, L., Bielecki, J., Bean, R., de Wijn, R., Sato, T., Kirkwood, H., Letrun, R., Batyuk, A., Snigireva, I., Fenel, D., Schubert, R., Canfield, E. J., Alba, M. M., Laporte, F., Després, L., Bacia, M., Roux, A., Chapelle, C., Riobé, F., Maury, O., Ling, W. L., Boutet, S., Mancuso, A., Gutsche, I., Girard, E., Barends, T. R. M., Pellequer, J.-L., Park, H.-W., Laganowsky, A. D., Rodriguez, J., Burghammer, M., Shoeman, R. L., Doak, R. B., Weik, M., Sauter, N. K., Federici, B., Cascio, D., Schlichting, I., & Colletier, J.-P.
Affiliations
  • Centre National de la Recherche Scientifique (FR)
  • University of California, Los Angeles (US)
  • Institut Laue-Langevin (FR)
  • Lawrence Berkeley National Laboratory (US)
  • Max Planck Institute for Medical Research (DE)
  • SLAC National Accelerator Laboratory (US)
  • Texas A&M University (US)
  • University of California, Riverside (US)
  • European X-Ray Free-Electron Laser (DE)
  • European Synchrotron Radiation Facility (FR)
  • University of Southern California (US)
  • Lyon 1 Université (FR)
Corresponding author
Colletier, Jacques-Philippe
Venue
Nature Communications
Published
2022-07-28
Volume
13
Issue
1
Pages
4376-4376
ISSN
2041-1723 (ISSN-L)
OpenAlex
W4288096555
Cited by
28
References
6
Citations by year
2026: 4 · 2025: 6 · 2024: 8 · 2023: 9 · 2022: 1
FWCI
1.69
Type
journal article
Language
en
Open access
Locations
  • Nature Communications (publishedVersion, cc-by)
  • bioRxiv (Cold Spring Harbor Laboratory) (acceptedVersion)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
  • HAL (submittedVersion, other-oa)
  • HAL (submittedVersion, cc-by-nc)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
  • MPG.PuRe (Max Planck Society) (submittedVersion)
  • European XFEL (submittedVersion)
Funders
  • U.S. Department of Health & Human Services | National Institutes of Health (GM117126, P41RR001209, P41GM103393)
  • DOE | Office of Science (DE-AC02-76SF00515)
  • Centre National de la Recherche Scientifique (PEPS SASLELX)
  • U.S. Department of Health & Human Services | Centers for Disease Control and Prevention (1U01CK000516)
  • Agence Nationale de la Recherche (ANR-2018-CE11-0005-02, ANR-10-INBS-05-02, ANR-17-EURE-0003, NR-17-CE11-0018-01)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Structural Biology › Enzyme Structure and Function
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Insect Resistance and Genetics
  • Life Sciences › Agricultural and Biological Sciences › Insect Science › Entomopathogenic Microorganisms in Pest Control
Keywords
Cry11Aa, mosquitocidal toxin, Bacillus thuringiensis var. israelensis, nanocrystals, serial femtosecond crystallography, de novo structure determination, single-wavelength anomalous dispersion, protoxin, mosquito control, toxin toxicity
MeSH terms
Animals, Bacillus thuringiensis, Bacterial Proteins, Endotoxins, Hemolysin Proteins, Larva, Mosquito Control, Nanoparticles

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