1FV2

The Hc fragment of tetanus toxin complexed with an analogue of its ganglioside receptor GT1B

• PDB DOI: https://doi.org/10.2210/pdb1FV2/pdb

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


• Deposited: 2000-09-18 Released: 2001-09-05 
• Deposition Author(s): Fotinou, C., Emsley, P., Black, I., Ando, H., Ishida, H., Kiso, M., Sinha, K.A., Fairweather, N.F., Isaacs, N.W.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.276 
• R-Value Work: 0.224 
• R-Value Observed: 0.225 

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 55.78 kDa 
• Atom Count: 3,893 
• Modelled Residue Count: 451 
• Deposited Residue Count: 472 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
TETANUS TOXIN HEAVY CHAIN	A	472	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

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D 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	B	7		N/A
Glycosylation Resources
GlyTouCan:  G19543NY GlyCosmos:  G19543NY GlyGen:  G19543NY

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CEQ	D [auth A]	ETHYL-TRIMETHYL-SILANE C5 H14 Si UKAJDOBPPOAZSS-UHFFFAOYSA-N
PO4	C [auth A]	PHOSPHATE ION O4 P NBIIXXVUZAFLBC-UHFFFAOYSA-K

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.276 
• R-Value Work: 0.224 
• R-Value Observed: 0.225 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 45.849	α = 90
b = 52.172	β = 99.55
c = 117.353	γ = 90

Software Package:

Software Name	Purpose
MOSFLM	data reduction
SCALA	data scaling
AMoRE	phasing
REFMAC	refinement
CCP4	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2001-09-05 
Deposition Author(s): Fotinou, C., Emsley, P., Black, I., Ando, H., Ishida, H., Kiso, M., Sinha, K.A., Fairweather, N.F., Isaacs, N.W.

Revision History  

• 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: Version format compliance
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Advisory, Atomic model, Data collection, Derived calculations, Structure summary