Crystal structure of full length Cry6Aa

Experimental Data Snapshot

  • Resolution: 2.70 Å
  • R-Value Free: 0.325 
  • R-Value Work: 0.274 

wwPDB Validation   3D Report Full Report

This is version 1.1 of the entry. See complete history


The pesticidal Cry6Aa toxin from Bacillus thuringiensis is structurally similar to HlyE-family alpha pore-forming toxins.

Dementiev, A.Board, J.Sitaram, A.Hey, T.Kelker, M.S.Xu, X.Hu, Y.Vidal-Quist, C.Chikwana, V.Griffin, S.McCaskill, D.Wang, N.X.Hung, S.C.Chan, M.K.Lee, M.M.Hughes, J.Wegener, A.Aroian, R.V.Narva, K.E.Berry, C.

(2016) BMC Biol 14: 71-71

  • DOI: https://doi.org/10.1186/s12915-016-0295-9
  • Primary Citation of Related Structures:  
    5KUC, 5KUD

  • PubMed Abstract: 

    The Cry6 family of proteins from Bacillus thuringiensis represents a group of powerful toxins with great potential for use in the control of coleopteran insects and of nematode parasites of importance to agriculture. These proteins are unrelated to other insecticidal toxins at the level of their primary sequences and the structure and function of these proteins has been poorly studied to date. This has inhibited our understanding of these toxins and their mode of action, along with our ability to manipulate the proteins to alter their activity to our advantage. To increase our understanding of their mode of action and to facilitate further development of these proteins we have determined the structure of Cry6Aa in protoxin and trypsin-activated forms and demonstrated a pore-forming mechanism of action.

  • Organizational Affiliation

    Present address: Antimicrobial Reference Laboratory, Southmead Hospital, Westbury-on-Trym, Bristol, BS10 5NB, UK.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Pesticidal crystal protein Cry6Aa475Bacillus thuringiensisMutation(s): 0 
Gene Names: cry6AacryVIacryVIA(a)
Membrane Entity: Yes 
Find proteins for Q45757 (Bacillus thuringiensis)
Explore Q45757 
Go to UniProtKB:  Q45757
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ45757
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.70 Å
  • R-Value Free: 0.325 
  • R-Value Work: 0.274 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 50.367α = 90
b = 71.735β = 90
c = 142.913γ = 90
Software Package:
Software NamePurpose
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-08-03
    Type: Initial release
  • Version 1.1: 2016-09-14
    Changes: Database references