4L3A

Crystal structure of Internalin K (InlK) from Listeria monocytogenes


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.59 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.228 
  • R-Value Observed: 0.230 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structure of Internalin InlK from the Human Pathogen Listeria monocytogenes.

Neves, D.Job, V.Dortet, L.Cossart, P.Dessen, A.

(2013) J Mol Biol 425: 4520-4529

  • DOI: https://doi.org/10.1016/j.jmb.2013.08.010
  • Primary Citation of Related Structures:  
    4L3A, 4L3F

  • PubMed Abstract: 

    Listeria monocytogenes is a human pathogen that employs a wide variety of virulence factors in order to adhere to, invade, and replicate within target cells. Internalins play key roles in processes ranging from adhesion to receptor recognition and are thus essential for infection. Recently, InlK, a surface-associated internalin, was shown to be involved in Listeria's ability to escape from autophagy by recruitment of the major vault protein (MVP) to the bacterial surface. Here, we report the structure of InlK, which harbors four domains arranged in the shape of a "bent arm". The structure supports a role for the "elbow" of InlK in partner recognition, as well as of two Ig-like pedestals intercalated by hinge regions in the projection of InlK away from the surface of the bacterium. The unusual fold and flexibility of InlK could be essential for MVP binding and concealment from recognition by molecules involved in the autophagic process.


  • Organizational Affiliation

    Brazilian National Laboratory for Biosciences (LNBio), CNPEM, Campinas, São Paulo, Brazil.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Internalin K
A, B
590Listeria monocytogenes EGD-eMutation(s): 0 
Gene Names: lmo1290
UniProt
Find proteins for Q8Y7I7 (Listeria monocytogenes serovar 1/2a (strain ATCC BAA-679 / EGD-e))
Explore Q8Y7I7 
Go to UniProtKB:  Q8Y7I7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8Y7I7
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.59 Å
  • R-Value Free: 0.243 
  • R-Value Work: 0.228 
  • R-Value Observed: 0.230 
  • Space Group: P 32 1 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 115.34α = 90
b = 115.34β = 90
c = 190.71γ = 120
Software Package:
Software NamePurpose
ADSCdata collection
PHASERphasing
PHENIXrefinement
XDSdata reduction
XDSdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Released Date: 2013-08-28 
  • Deposition Author(s): Neves, D.

Revision History  (Full details and data files)

  • Version 1.0: 2013-08-28
    Type: Initial release
  • Version 1.1: 2013-09-04
    Changes: Database references
  • Version 1.2: 2013-11-13
    Changes: Database references
  • Version 1.3: 2024-02-28
    Changes: Data collection, Database references, Derived calculations