4QD2

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.210 

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
  • Primary Citation of Related Structures:  
    4QD2

  • 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 adhesion protein E-cadherin at 2 ...

    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

    Department of Physiology and Biophysics, University of California, Irvine, CA 92697, USA. r.jin@uci.edu.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Hemagglutinin component HA33C,
A [auth D],
H,
F [auth I]
296Clostridium botulinum A str. HallMutation(s): 0 
Gene Names: ha70CBO0801CLC_0857ha33CBO0803
UniProt
Find proteins for A5HZZ6 (Clostridium botulinum (strain Hall / ATCC 3502 / NCTC 13319 / Type A))
Explore A5HZZ6 
Go to UniProtKB:  A5HZZ6
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA5HZZ6
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Hemagglutinin component HA17B, G147Clostridium botulinum A str. HallMutation(s): 0 
Gene Names: ha17CBO0802CLC_0858
UniProt
Find proteins for A5HZZ5 (Clostridium botulinum (strain Hall / ATCC 3502 / NCTC 13319 / Type A))
Explore A5HZZ5 
Go to UniProtKB:  A5HZZ5
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA5HZZ5
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Hemagglutinin component HA70D [auth A],
I [auth F]
254Clostridium botulinum A str. HallMutation(s): 0 
Gene Names: ha33CBO0803CLC_0859ha70CBO0801
UniProt
Find proteins for A5HZZ4 (Clostridium botulinum (strain Hall / ATCC 3502 / NCTC 13319 / Type A))
Explore A5HZZ4 
Go to UniProtKB:  A5HZZ4
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA5HZZ4
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Cadherin-1E, J213Mus musculusMutation(s): 0 
Gene Names: Cdh1
UniProt & NIH Common Fund Data Resources
Find proteins for P09803 (Mus musculus)
Explore P09803 
Go to UniProtKB:  P09803
IMPC:  MGI:88354
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP09803
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.40 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.210 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 86.99α = 116.89
b = 95.73β = 96.34
c = 96.14γ = 93.7
Software Package:
Software NamePurpose
ADSCdata collection
PHASERphasing
PHENIXrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

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