Internalin (INLA, Listeria monocytogenes) - functional domain, uncomplexed

Experimental Data Snapshot

  • Resolution: 1.50 Å
  • R-Value Free: 0.184 
  • R-Value Work: 0.145 
  • R-Value Observed: 0.147 

wwPDB Validation   3D Report Full Report

This is version 1.3 of the entry. See complete history


Structure of Internalin, a Major Invasion Protein of Listeria Monocytogenes, in Complex with its Human Receptor E-Cadherin

Schubert, W.-D.Urbanke, C.Ziehm, T.Beier, V.Machner, M.P.Domann, E.Wehland, J.Chakraborty, T.Heinz, D.W.

(2002) Cell 111: 825

  • DOI: https://doi.org/10.1016/s0092-8674(02)01136-4
  • Primary Citation of Related Structures:  
    1O6S, 1O6T, 1O6V

  • PubMed Abstract: 

    Listeria monocytogenes, a food-borne bacterial pathogen, enters mammalian cells by inducing its own phagocytosis. The listerial protein internalin (InlA) mediates bacterial adhesion and invasion of epithelial cells in the human intestine through specific interaction with its host cell receptor E-cadherin. We present the crystal structures of the functional domain of InlA alone and in a complex with the extracellular, N-terminal domain of human E-cadherin (hEC1). The leucine rich repeat (LRR) domain of InlA surrounds and specifically recognizes hEC1. Individual interactions were probed by mutagenesis and analytical ultracentrifugation. These include Pro16 of hEC1, a major determinant for human susceptibility to L. monocytogenes infection that is essential for intermolecular recognition. Our studies reveal the structural basis for host tro-pism of this bacterium and the molecular deception L. monocytogenes employs to exploit the E-cadherin system.

  • Organizational Affiliation

    Department of Structural Biology, German Research Center for Biotechnology (GBF), Mascheroder Weg 1, D-38124, Braunschweig, Germany.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
A, B
466Listeria monocytogenes EGD-eMutation(s): 0 
Find proteins for P0DJM0 (Listeria monocytogenes serovar 1/2a (strain ATCC BAA-679 / EGD-e))
Explore P0DJM0 
Go to UniProtKB:  P0DJM0
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0DJM0
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.50 Å
  • R-Value Free: 0.184 
  • R-Value Work: 0.145 
  • R-Value Observed: 0.147 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 85.589α = 90
b = 67.907β = 103.48
c = 154.251γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2002-12-23
    Type: Initial release
  • Version 1.1: 2012-08-01
    Changes: Advisory, Atomic model, Database references, Derived calculations, Non-polymer description, Other, Refinement description, Structure summary, Version format compliance
  • Version 1.2: 2019-05-08
    Changes: Advisory, Data collection, Experimental preparation, Other
  • Version 1.3: 2024-05-08
    Changes: Data collection, Database references, Derived calculations, Other