1AF9

TETANUS NEUROTOXIN C FRAGMENT

• PDB DOI: https://doi.org/10.2210/pdb1AF9/pdb

• Classification: CLOSTRIDIAL NEUROTOXIN
• Organism(s): Clostridium tetani
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 1997-03-24 Released: 1998-04-29 
• Deposition Author(s): Umland, T.C., Wingert, L., Swaminathan, S., Furey, W.F., Schmidt, J.J., Sax, M.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free: 
  0.245 (Depositor) 
• R-Value Work: 
  0.161 (Depositor), 0.160 (DCC) 
• R-Value Observed: 
  0.161 (Depositor) 

Literature

Structure of the receptor binding fragment HC of tetanus neurotoxin.

Umland, T.C., Wingert, L.M., Swaminathan, S., Furey, W.F., Schmidt, J.J., Sax, M.

(1997) Nat Struct Biol 4: 788-792

• PubMed: 9334741 
• DOI: https://doi.org/10.1038/nsb1097-788
• Primary Citation of Related Structures:  
  1AF9


• PubMed Abstract: 
  

  The 2.7 A structure of the tetanus neurotoxin receptor binding fragment Hc reveals a jelly-roll domain and a beta-trefoil domain. Hc retains the unique transport properties of the holotoxin and is capable of eliciting a protective immunological response against the full length holotoxin.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 51.83 kDa 
• Atom Count: 3,702 
• Modelled Residue Count: 441 
• Deposited Residue Count: 452 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
TETANUS NEUROTOXIN	A	452	Clostridium tetani	Mutation(s): 0  EC: 3.4.24.68
UniProt
Find proteins for P04958 (Clostridium tetani (strain Massachusetts / E88)) Explore P04958  Go to UniProtKB:  P04958

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.70 Å
• R-Value Free:  0.245 (Depositor) 
• R-Value Work:  0.161 (Depositor), 0.160 (DCC) 
• R-Value Observed: 0.161 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 67.4	α = 90
b = 79.7	β = 90
c = 91.1	γ = 90

Software Package:

Software Name	Purpose
PHASES	phasing
X-PLOR	model building
X-PLOR	refinement
XENGEN	data reduction
WEISSMAN'S	data scaling
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1998-04-29 
Deposition Author(s): Umland, T.C., Wingert, L., Swaminathan, S., Furey, W.F., Schmidt, J.J., Sax, M.

Revision History  

• Version 1.0: 1998-04-29
  Type: Initial release
  
• Version 1.1: 2008-03-24
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2024-02-07
  Changes: Data collection, Database references