Biological Assembly 1  

 3D View: Structure | Ligand Interaction

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 52131.54 
• Atom Count: 3606 
• Residue Count: 492 
• Unique protein chains: 1

1CWV

CRYSTAL STRUCTURE OF INVASIN: A BACTERIAL INTEGRIN-BINDING PROTEIN

• DOI: 10.2210/pdb1CWV/pdb

• Classification: STRUCTURAL PROTEIN
• Organism(s): Yersinia pseudotuberculosis serotype I (strain IP32953)
• Expression System: Escherichia coli


• Deposited: 1999-08-26 Released: 1999-10-13 
• Deposition Author(s): Bjorkman, P.J., Hamburger, Z.A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.3 Å
• R-Value Free: 0.274 
• R-Value Work: 0.224 

Literature

Crystal structure of invasin: a bacterial integrin-binding protein.

Hamburger, Z.A., Brown, M.S., Isberg, R.R., Bjorkman, P.J.

(1999) Science 286: 291-295

• PubMed: 10514372 


• PubMed Abstract: 
  

The Yersinia pseudotuberculosis invasin protein promotes bacterial entry by binding to host cell integrins with higher affinity than natural substrates such as fibronectin. The 2.3 angstrom crystal structure of the invasin extracellular region reveals five domains that form a 180 angstrom rod with structural similarities to tandem fibronectin type III domains. The integrin-binding surfaces of invasin and fibronectin include similarly located key residues, but in the context of different folds and surface shapes. The structures of invasin and fibronectin provide an example of convergent evolution, in which invasin presents an optimized surface for integrin binding, in comparison with host substrates.

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Organizational Affiliation: 

Division of Biology 156-29, Howard Hughes Medical Institute, California Institute of Technology, Pasadena, CA 91125, USA.

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
INVASIN	A	492	Yersinia pseudotuberculosis serotype I (strain IP32953)	Mutation(s): 0
Membrane protein mpstruc	Group:  TRANSMEMBRANE PROTEINS: BETA-BARREL		Sub Group:  Outer Membrane Autotransporters	Protein:  Invasin outer membrane β-domain
Find proteins for P11922 (Yersinia pseudotuberculosis serotype I (strain IP32953)) Go to UniProtKB:  P11922

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
CIT	A	CITRIC ACID C6 H8 O7 KRKNYBCHXYNGOX-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.3 Å
• R-Value Free: 0.274 
• R-Value Work: 0.224 
• Space Group: P 1 2₁ 1

Unit Cell:

Length (Å)	Angle (°)
a = 61.140	α = 90.00
b = 50.660	β = 98.34
c = 97.920	γ = 90.00

Software Package:

Software Name	Purpose
SHARP	phasing
SCALEPACK	data scaling
X-PLOR	refinement
DENZO	data reduction

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1999-08-26 
• Released Date: 1999-10-13 
• Deposition Author(s): Bjorkman, P.J., Hamburger, Z.A.

Revision History 

• Version 1.0: 1999-10-13
  Type: Initial release
• Version 1.1: 2008-04-27
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Version format compliance