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
  • Structures With Same Primary Citation

  • 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

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



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Hemagglutinin component HA33C, D, H, I296Clostridium botulinum A str. HallMutation(s): 0 
Gene Names: ha70CBO0801CLC_0857ha33CBO0803
Find proteins for A5HZZ6 (Clostridium botulinum (strain Hall / ATCC 3502 / NCTC 13319 / Type A))
Explore A5HZZ6 
Go to UniProtKB:  A5HZZ6
Protein Feature View
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  • Reference Sequence

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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Hemagglutinin component HA17B, G147Clostridium botulinum A str. HallMutation(s): 0 
Gene Names: ha17CBO0802CLC_0858
Find proteins for A5HZZ5 (Clostridium botulinum (strain Hall / ATCC 3502 / NCTC 13319 / Type A))
Explore A5HZZ5 
Go to UniProtKB:  A5HZZ5
Protein Feature View
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  • Reference Sequence

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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Hemagglutinin component HA70A, F254Clostridium botulinum A str. HallMutation(s): 0 
Gene Names: ha33CBO0803CLC_0859ha70CBO0801
Find proteins for A5HZZ4 (Clostridium botulinum (strain Hall / ATCC 3502 / NCTC 13319 / Type A))
Explore A5HZZ4 
Go to UniProtKB:  A5HZZ4
Protein Feature View
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  • Reference Sequence

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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
Cadherin-1E, J213Mus musculusMutation(s): 0 
Gene Names: Cdh1
Find proteins for P09803 (Mus musculus)
Explore P09803 
Go to UniProtKB:  P09803
NIH Common Fund Data Resources
IMPC  MGI:88354
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download CCD File 
E, J
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
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

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Entry History 

Deposition Data

Revision History 

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