3WIN

Clostridium botulinum Hemagglutinin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.50 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.200 
  • R-Value Observed: 0.203 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Crystal Structure of Clostridium botulinum Whole Hemagglutinin Reveals a Huge Triskelion-shaped Molecular Complex

Amatsu, S.Sugawara, Y.Matsumura, T.Kitadokoro, K.Fujinaga, Y.

(2013) J Biol Chem 288: 35617-35625

  • DOI: 10.1074/jbc.M113.521179
  • Primary Citation of Related Structures:  
    3WIN

  • PubMed Abstract: 
  • Clostridium botulinum HA is a component of the large botulinum neurotoxin complex and is critical for its oral toxicity. HA plays multiple roles in toxin penetration in the gastrointestinal tract, including protection from the digestive environment, binding to the intestinal mucosal surface, and disruption of the epithelial barrier ...

    Clostridium botulinum HA is a component of the large botulinum neurotoxin complex and is critical for its oral toxicity. HA plays multiple roles in toxin penetration in the gastrointestinal tract, including protection from the digestive environment, binding to the intestinal mucosal surface, and disruption of the epithelial barrier. At least two properties of HA contribute to these roles: the sugar-binding activity and the barrier-disrupting activity that depends on E-cadherin binding of HA. HA consists of three different proteins, HA1, HA2, and HA3, whose structures have been partially solved and are made up mainly of β-strands. Here, we demonstrate structural and functional reconstitution of whole HA and present the complete structure of HA of serotype B determined by x-ray crystallography at 3.5 Å resolution. This structure reveals whole HA to be a huge triskelion-shaped molecule. Our results suggest that whole HA is functionally and structurally separable into two parts: HA1, involved in recognition of cell-surface carbohydrates, and HA2-HA3, involved in paracellular barrier disruption by E-cadherin binding.


    Organizational Affiliation

    From the Graduate School of Science and Technology, Department of Biomolecular Engineering, Kyoto Institute of Technology, Matsugasakigosyokaido-cho, Sakyo-ku, Kyoto 606-8585 and.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
HA3A [auth D]194Clostridium botulinum BMutation(s): 0 
Gene Names: ha3
UniProt
Find proteins for Q33CP8 (Clostridium botulinum B)
Explore Q33CP8 
Go to UniProtKB:  Q33CP8
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
HA3B [auth E]431Clostridium botulinum BMutation(s): 0 
Gene Names: ha3
UniProt
Find proteins for Q33CP8 (Clostridium botulinum B)
Explore Q33CP8 
Go to UniProtKB:  Q33CP8
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
17 kD hemagglutinin componentC168Clostridium botulinum BMutation(s): 0 
Gene Names: hem17/Bha2
UniProt
Find proteins for Q45841 (Clostridium botulinum B)
Explore Q45841 
Go to UniProtKB:  Q45841
Protein Feature View
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  • Reference Sequence
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
HA1D [auth A], E [auth B]316Clostridium botulinum BMutation(s): 0 
Gene Names: ha1
UniProt
Find proteins for Q33CP6 (Clostridium botulinum B)
Explore Q33CP6 
Go to UniProtKB:  Q33CP6
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.50 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.200 
  • R-Value Observed: 0.203 
  • Space Group: P 63 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 324.726α = 90
b = 324.726β = 90
c = 117.588γ = 120
Software Package:
Software NamePurpose
HKL-2000data collection
PHASERphasing
REFMACrefinement
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: 2013-11-06
    Type: Initial release
  • Version 1.1: 2013-11-20
    Changes: Derived calculations
  • Version 1.2: 2013-11-27
    Changes: Derived calculations
  • Version 1.3: 2013-12-25
    Changes: Database references