3WIN

Clostridium botulinum Hemagglutinin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.5 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.200 

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

  • 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, ...

    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

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
HA3
D
194Clostridium botulinum BMutation(s): 0 
Gene Names: ha3
Find proteins for Q33CP8 (Clostridium botulinum B)
Go to UniProtKB:  Q33CP8
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
HA3
E
431Clostridium botulinum BMutation(s): 0 
Gene Names: ha3
Find proteins for Q33CP8 (Clostridium botulinum B)
Go to UniProtKB:  Q33CP8
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
17 kD hemagglutinin component
C
168Clostridium botulinum BMutation(s): 0 
Gene Names: hem17/B (ha2)
Find proteins for Q45841 (Clostridium botulinum B)
Go to UniProtKB:  Q45841
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
HA1
A, B
316Clostridium botulinum BMutation(s): 0 
Gene Names: ha1
Find proteins for Q33CP6 (Clostridium botulinum B)
Go to UniProtKB:  Q33CP6
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.5 Å
  • R-Value Free: 0.251 
  • R-Value Work: 0.200 
  • Space Group: P 63 2 2
Unit Cell:
Length (Å)Angle (°)
a = 324.726α = 90.00
b = 324.726β = 90.00
c = 117.588γ = 120.00
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data collection
HKL-2000data scaling
PHASERphasing
HKL-2000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-11-06
    Type: Initial release
  • Version 1.1: 2013-11-20
    Type: Derived calculations
  • Version 1.2: 2013-11-27
    Type: Derived calculations
  • Version 1.3: 2013-12-25
    Type: Database references