3N7J

Crystal structure of botulinum neurotoxin serotype D binding domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.222 
  • R-Value Observed: 0.222 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Identification of a Unique Ganglioside Binding Loop within Botulinum Neurotoxins C and D-SA .

Karalewitz, A.P.Kroken, A.R.Fu, Z.Baldwin, M.R.Kim, J.J.Barbieri, J.T.

(2010) Biochemistry 49: 8117-8126

  • DOI: 10.1021/bi100865f
  • Primary Citation of Related Structures:  
    3N7L, 3N7M, 3N7J, 3N7K

  • PubMed Abstract: 
  • The botulinum neurotoxins (BoNTs) are the most potent protein toxins for humans. There are seven serotypes of BoNTs (A-G) based on a lack of cross antiserum neutralization. BoNTs utilize gangliosides as components of the host receptors for binding an ...

    The botulinum neurotoxins (BoNTs) are the most potent protein toxins for humans. There are seven serotypes of BoNTs (A-G) based on a lack of cross antiserum neutralization. BoNTs utilize gangliosides as components of the host receptors for binding and entry into neurons. Members of BoNT/C and BoNT/D serotypes include mosaic toxins that are organized in D/C and C/D toxins. One D/C mosaic toxin, BoNT/D-South Africa (BoNT/D-SA), was not fully neutralized by immunization with BoNT serotype C or D, which stimulated this study. Here the crystal structures of the receptor binding domains of BoNT/C, BoNT/D, and BoNT/D-SA are presented. Biochemical and cell binding studies show that BoNT/C and BoNT/D-SA possess unique mechanisms for ganglioside binding. These studies provide new information about how the BoNTs can enter host cells as well as a basis for understanding the immunological diversity of these neurotoxins.


    Organizational Affiliation

    Department of Microbiology and of Molecular Genetics, Medical College of Wisconsin,Milwaukee, Wisconsin 53226-3548, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Botulinum neurotoxin type DA415Clostridium botulinumMutation(s): 0 
Gene Names: botDClostridium phage d-16 phi
EC: 3.4.24.69
Find proteins for P19321 (Clostridium botulinum D phage)
Explore P19321 
Go to UniProtKB:  P19321
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.222 
  • R-Value Observed: 0.222 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 60.04α = 90
b = 94.15β = 90
c = 94.99γ = 90
Software Package:
Software NamePurpose
CrystalCleardata collection
MOLREPphasing
CNSrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-09-08
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2015-01-28
    Changes: Structure summary