4QD2

Molecular basis for disruption of E-cadherin adhesion by botulinum neurotoxin A complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.208 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Molecular basis for disruption of E-cadherin adhesion by botulinum neurotoxin A complex.

Lee, K.Zhong, X.Gu, S.Kruel, A.M.Dorner, M.B.Perry, K.Rummel, A.Dong, M.Jin, R.

(2014) Science 344: 1405-1410

  • DOI: 10.1126/science.1253823

  • PubMed Abstract: 
  • How botulinum neurotoxins (BoNTs) cross the host intestinal epithelial barrier in foodborne botulism is poorly understood. Here, we present the crystal structure of a clostridial hemagglutinin (HA) complex of serotype BoNT/A bound to the cell adhesio ...

    How botulinum neurotoxins (BoNTs) cross the host intestinal epithelial barrier in foodborne botulism is poorly understood. Here, we present the crystal structure of a clostridial hemagglutinin (HA) complex of serotype BoNT/A bound to the cell adhesion protein E-cadherin at 2.4 angstroms. The HA complex recognizes E-cadherin with high specificity involving extensive intermolecular interactions and also binds to carbohydrates on the cell surface. Binding of the HA complex sequesters E-cadherin in the monomeric state, compromising the E-cadherin-mediated intercellular barrier and facilitating paracellular absorption of BoNT/A. We reconstituted the complete 14-subunit BoNT/A complex using recombinantly produced components and demonstrated that abolishing either E-cadherin- or carbohydrate-binding of the HA complex drastically reduces oral toxicity of BoNT/A complex in vivo. Together, these studies establish the molecular mechanism of how HAs contribute to the oral toxicity of BoNT/A.


    Organizational Affiliation

    Institut für Toxikologie, Medizinische Hochschule Hannover, Carl-Neuberg-Strasse 1, 30625 Hannover, Germany.,Department of Physiology and Biophysics, University of California, Irvine, CA 92697, USA. r.jin@uci.edu.,Department of Physiology and Biophysics, University of California, Irvine, CA 92697, USA.,Department of Microbiology and Immunobiology, Harvard Medical School, Division of Neuroscience, New England Primate Research Center, Southborough, MA 01772, USA.,Centre for Biological Threats and Special Pathogens-Biological Toxins (ZBS3), Robert Koch-Institut, Nordufer 20, 13353 Berlin, Germany.,Northeastern Collaborative Access Team (NE-CAT) and Department of Chemistry and Chemical Biology, Cornell University, Building 436E, Argonne National Laboratory, 9700 S. Cass Avenue, Argonne, IL 60439, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Hemagglutinin component HA33
D, C, I, H
296Clostridium botulinum (strain Hall / ATCC 3502 / NCTC 13319 / Type A)Mutation(s): 0 
Gene Names: ha33
Find proteins for A5HZZ6 (Clostridium botulinum (strain Hall / ATCC 3502 / NCTC 13319 / Type A))
Go to UniProtKB:  A5HZZ6
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Hemagglutinin component HA17
B, G
147Clostridium botulinum (strain Hall / ATCC 3502 / NCTC 13319 / Type A)Mutation(s): 0 
Gene Names: ha17
Find proteins for A5HZZ5 (Clostridium botulinum (strain Hall / ATCC 3502 / NCTC 13319 / Type A))
Go to UniProtKB:  A5HZZ5
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Hemagglutinin component HA70
A, F
254Clostridium botulinum (strain Hall / ATCC 3502 / NCTC 13319 / Type A)Mutation(s): 0 
Gene Names: ha70
Find proteins for A5HZZ4 (Clostridium botulinum (strain Hall / ATCC 3502 / NCTC 13319 / Type A))
Go to UniProtKB:  A5HZZ4
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Cadherin-1
E, J
213Mus musculusMutation(s): 0 
Gene Names: Cdh1
Find proteins for P09803 (Mus musculus)
Go to UniProtKB:  P09803
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download SDF File 
Download CCD File 
E, J
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.208 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 86.990α = 116.89
b = 95.730β = 96.34
c = 96.140γ = 93.70
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
ADSCdata collection
PHASERphasing
PHENIXrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-06-25
    Type: Initial release
  • Version 1.1: 2014-07-02
    Type: Database references