1FV3 | pdb_00001fv3

THE HC FRAGMENT OF TETANUS TOXIN COMPLEXED WITH AN ANALOGUE OF ITS GANGLIOSIDE RECEPTOR GT1B


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 
    0.306 (Depositor), 0.245 (DCC) 
  • R-Value Work: 
    0.237 (Depositor), 0.227 (DCC) 
  • R-Value Observed: 
    0.239 (Depositor) 

wwPDB Validation 3D Report Full Report

Validation slider image for 1FV3

This is version 2.1 of the entry. See complete history

Literature

The crystal structure of tetanus toxin Hc fragment complexed with a synthetic GT1b analogue suggests cross-linking between ganglioside receptors and the toxin.

Fotinou, C.Emsley, P.Black, I.Ando, H.Ishida, H.Kiso, M.Sinha, K.A.Fairweather, N.F.Isaacs, N.W.

(2001) J Biological Chem 276: 32274-32281

  • DOI: https://doi.org/10.1074/jbc.M103285200
  • Primary Citation Related Structures: 
    1FV2, 1FV3

  • PubMed Abstract: 

    Tetanus toxin, a member of the family of Clostridial neurotoxins, is one of the most potent toxins known. The crystal structure of the complex of the COOH-terminal fragment of the heavy chain with an analogue of its ganglioside receptor, GT1b, provides the first direct identification and characterization of the ganglioside-binding sites. The ganglioside induces cross-linking by binding to two distinct sites on the Hc molecule. The structure sheds new light on the binding of Clostridial neurotoxins to receptors on neuronal cells and provides important information relevant to the design of anti-tetanus and anti-botulism therapeutic agents.


  • Organizational Affiliation
    • Department of Chemistry, University of Glasgow, Glasgow, G12 8QQ, Scotland, United Kingdom.

Macromolecule Content 

  • Total Structure Weight: 111.46 kDa 
  • Atom Count: 7,786 
  • Modeled Residue Count: 902 
  • Deposited Residue Count: 944 
  • Unique protein chains: 1

Macromolecules

Find similar proteins by:|  3D Structure
Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
TETANUS TOXIN HEAVY CHAIN
A, B
472Clostridium tetaniMutation(s): 0 
EC: 3.4.24.68
UniProt
Find proteins for P04958 (Clostridium tetani (strain Massachusetts / E88))
Explore P04958 
Go to UniProtKB:  P04958
Entity Groups
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP04958
Sequence Annotations
Expand
Reference Sequence

Oligosaccharides

Help  
Entity ID: 2
MoleculeChains Length2D Diagram GlycosylationD Interactions
N-acetyl-alpha-neuraminic acid-(2-3)-beta-D-galactopyranose-(1-3)-2-acetamido-2-deoxy-beta-D-galactopyranose-(1-4)-[N-acetyl-alpha-neuraminic acid-(2-8)-N-acetyl-beta-neuraminic acid-(2-3)]beta-D-galactopyranose-(1-4)-beta-D-glucopyranose
C, D
7N/A
Glycosylation Resources
GlyTouCan: G19543NY
GlyCosmos: G19543NY
GlyGen: G19543NY

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free:  0.306 (Depositor), 0.245 (DCC) 
  • R-Value Work:  0.237 (Depositor), 0.227 (DCC) 
  • R-Value Observed: 0.239 (Depositor) 
Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 91.311α = 90
b = 53.068β = 89.78
c = 118.278γ = 90
Software Package:
Software NamePurpose
MOSFLMdata reduction
SCALAdata scaling
AMoREphasing
REFMACrefinement
CCP4data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2001-09-05
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Advisory, Refinement description, Version format compliance
  • Version 1.3: 2016-06-08
    Changes: Database references
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Advisory, Atomic model, Data collection, Derived calculations, Structure summary
  • Version 2.1: 2024-11-20
    Changes: Data collection, Database references, Structure summary