Biological Assembly 1  

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Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 181036.56 
• Atom Count: 11990 
• Residue Count: 1552 
• Unique protein chains: 1

1J7N

Anthrax Toxin Lethal factor

• DOI: 10.2210/pdb1J7N/pdb

• Classification: TOXIN
• Organism(s): Bacillus anthracis
• Expression System: Bacillus anthracis


• Deposited: 2001-05-17 Released: 2001-11-07 
• Deposition Author(s): Pannifer, A.D., Wong, T.Y., Schwarzenbacher, R., Renatus, M., Petosa, C., Collier, R.J., Bienkowska, J., Lacy, D.B., Park, S., Leppla, S.H., Hanna, P., Liddington, R.C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.3 Å
• R-Value Free: 0.261 
• R-Value Work: 0.229 

Literature

Crystal structure of the anthrax lethal factor.

Pannifer, A.D., Wong, T.Y., Schwarzenbacher, R., Renatus, M., Petosa, C., Bienkowska, J., Lacy, D.B., Collier, R.J., Park, S., Leppla, S.H., Hanna, P., Liddington, R.C.

(2001) Nature 414: 229-233

• PubMed: 11700563 
• DOI: 10.1038/n35101998
• Primary Citation of Related Structures:  
  1JKY


• PubMed Abstract: 
  

Lethal factor (LF) is a protein (relative molecular mass 90,000) that is critical in the pathogenesis of anthrax. It is a highly specific protease that cleaves members of the mitogen-activated protein kinase kinase (MAPKK) family near to their amino termini, leading to the inhibition of one or more signalling pathways. Here we describe the crystal structure of LF and its complex with the N terminus of MAPKK-2. LF comprises four domains: domain I binds the membrane-translocating component of anthrax toxin, the protective antigen (PA); domains II, III and IV together create a long deep groove that holds the 16-residue N-terminal tail of MAPKK-2 before cleavage. Domain II resembles the ADP-ribosylating toxin from Bacillus cereus, but the active site has been mutated and recruited to augment substrate recognition. Domain III is inserted into domain II, and seems to have arisen from a repeated duplication of a structural element of domain II. Domain IV is distantly related to the zinc metalloprotease family, and contains the catalytic centre; it also resembles domain I. The structure thus reveals a protein that has evolved through a process of gene duplication, mutation and fusion, into an enzyme with high and unusual specificity.

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Organizational Affiliation: 

Biochemistry Department, University of Leicester, Leicester LE1 7RH, UK.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Lethal Factor precursor	A, B	776	Bacillus anthracis	Mutation(s): 0  Gene Names: lef EC: 3.4.24.83
Find proteins for P15917 (Bacillus anthracis) Go to UniProtKB:  P15917

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
ZN	A, B	ZINC ION Zn PTFCDOFLOPIGGS-UHFFFAOYSA-N
SO4	A, B	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.3 Å
• R-Value Free: 0.261 
• R-Value Work: 0.229 
• Space Group: P 1 2₁ 1

Unit Cell:

Length (Å)	Angle (°)
a = 96.201	α = 90.00
b = 137.461	β = 98.35
c = 98.547	γ = 90.00

Software Package:

Software Name	Purpose
SCALEPACK	data scaling
CNS	refinement
SOLVE	phasing
DENZO	data reduction

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2001-05-17 
• Released Date: 2001-11-07 
• Deposition Author(s): Pannifer, A.D., Wong, T.Y., Schwarzenbacher, R., Renatus, M., Petosa, C., Collier, R.J., Bienkowska, J., Lacy, D.B., Park, S., Leppla, S.H., Hanna, P., Liddington, R.C.

Revision History 

• Version 1.0: 2001-11-07
  Type: Initial release
• Version 1.1: 2008-04-27
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance