Biological Assembly 1  

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Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 70907.95 
• Atom Count: 5001 
• Residue Count: 633 
• Unique protein chains: 1

1I5P

INSECTICIDAL CRYSTAL PROTEIN CRY2AA

• DOI: 10.2210/pdb1I5P/pdb

• Classification: TOXIN
• Organism(s): Bacillus thuringiensis subsp. kurstaki
• Expression System: Bacillus thuringiensis


• Deposited: 2001-02-28 Released: 2001-05-16 
• Deposition Author(s): Morse, R.J., Stroud, R.M., Yamamoto, T.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.2 Å
• R-Value Free: 0.231 
• R-Value Work: 0.183 

Literature

Structure of Cry2Aa suggests an unexpected receptor binding epitope.

Morse, R.J., Yamamoto, T., Stroud, R.M.

(2001) Structure 9: 409-417

• PubMed: 11377201 


• PubMed Abstract: 
  

Genetically modified (GM) crops that express insecticidal protein toxins are an integral part of modern agriculture. Proteins produced by Bacillus thuringiensis (Bt) during sporulation mediate the pathogenicity of Bt toward a spectrum of insect larvae whose breadth depends upon the Bt strain. These transmembrane channel-forming toxins are stored in Bt as crystalline inclusions called Cry proteins. These proteins are the active agents used in the majority of biorational pesticides and insect-resistant transgenic crops. Though Bt toxins are promising as a crop protection alternative and are ecologically friendlier than synthetic organic pesticides, resistance to Bt toxins by insects is recognized as a potential limitation to their application.

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Organizational Affiliation: 

Department of Biochemistry and Biophysics, University of California, San Francisco, 94143, San Francisco, CA, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
PESTICIDIAL CRYSTAL PROTEIN CRY2AA	A	633	Bacillus thuringiensis subsp. kurstaki	Mutation(s): 0  Gene Names: cry2Aa (cryB1, cryII, cryIIA(a))
Find proteins for P0A377 (Bacillus thuringiensis subsp. kurstaki) Go to UniProtKB:  P0A377

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.2 Å
• R-Value Free: 0.231 
• R-Value Work: 0.183 
• Space Group: P 4₃ 2₁ 2

Unit Cell:

Length (Å)	Angle (°)
a = 85.600	α = 90.00
b = 85.600	β = 90.00
c = 163.900	γ = 90.00

Software Package:

Software Name	Purpose
PHASES	phasing
SCALEPACK	data scaling
CNS	refinement
DENZO	data reduction

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2001-02-28 
• Released Date: 2001-05-16 
• Deposition Author(s): Morse, R.J., Stroud, R.M., Yamamoto, T.

Revision History 

• Version 1.0: 2001-05-16
  Type: Initial release
• Version 1.1: 2008-04-27
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance