mosquitocidal Cry11Ba determined at pH 6.5 from naturally-occurring nanocrystals by Serial femtosecond crystallography

Experimental Data Snapshot

  • Resolution: 2.40 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.183 

wwPDB Validation   3D Report Full Report

This is version 1.3 of the entry. See complete history


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

Tetreau, G.Sawaya, M.R.De Zitter, E.Andreeva, E.A.Banneville, A.S.Schibrowsky, N.A.Coquelle, N.Brewster, A.S.Grunbein, 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.Despres, L.Bacia, M.Roux, A.Chapelle, C.Riobe, 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.

(2022) Nat Commun 13: 4376-4376

  • DOI: https://doi.org/10.1038/s41467-022-31746-x
  • Primary Citation of Related Structures:  
    7QX4, 7QX5, 7QX6, 7QX7, 7QYD, 7R1E

  • PubMed 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.

  • Organizational Affiliation

    Department of Pharmacology and Pharmaceutical Sciences, School of Pharmacy, University of Southern California, Los Angeles, CA, 90089, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Pesticidal crystal protein Cry11Ba
A, B
724Bacillus thuringiensis serovar jegathesanMutation(s): 0 
Gene Names: cry11Bacry11BcryXIB(a)
Find proteins for Q45730 (Bacillus thuringiensis subsp. jegathesan)
Explore Q45730 
Go to UniProtKB:  Q45730
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ45730
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

Unit Cell:
Length ( Å )Angle ( ˚ )
a = 168.245α = 90
b = 158.528β = 90
c = 57.534γ = 90
Software Package:
Software NamePurpose
cctbx.xfeldata reduction
cctbx.xfeldata scaling

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
French National Research AgencyFranceANR-17-CE11-0018-01
Agence Nationale de la Recherche (ANR)FranceANR-2018-CE11-0005-02
Centre National de la Recherche Scientifique (CNRS)France--
Grenoble Instruct-ERIC Center (ISBG)France--
French Infrastructure for Integrated Structural Biology (FRISBI)FranceANR-10-INBS-05-02
Grenoble Alliance for Integrated Structural Cell Biology (GRAL)FranceANR-17-EURE-0003

Revision History  (Full details and data files)

  • Version 1.0: 2022-07-27
    Type: Initial release
  • Version 1.1: 2022-08-10
    Changes: Database references
  • Version 1.2: 2023-12-13
    Changes: Data collection, Database references
  • Version 1.3: 2024-01-31
    Changes: Refinement description