4LRK

Bacterial Effector NleH2 Kinase Domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.27 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.174 
  • R-Value Observed: 0.176 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

NleH defines a new family of bacterial effector kinases.

Grishin, A.M.Cherney, M.Anderson, D.H.Phanse, S.Babu, M.Cygler, M.

(2014) Structure 22: 250-259

  • DOI: 10.1016/j.str.2013.11.006
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Upon host cell infection, pathogenic Escherichia coli hijacks host cellular processes with the help of 20-60 secreted effector proteins that subvert cellular processes to create an environment conducive to bacterial survival. The NleH effector kinase ...

    Upon host cell infection, pathogenic Escherichia coli hijacks host cellular processes with the help of 20-60 secreted effector proteins that subvert cellular processes to create an environment conducive to bacterial survival. The NleH effector kinases manipulate the NF-κB pathway and prevent apoptosis. They show low sequence similarity to human regulatory kinases and contain two domains, the N-terminal, likely intrinsically unfolded, and a C-terminal kinase-like domain. We show that these effectors autophosphorylate on sites located predominantly in the N-terminal segment. The kinase domain displays a minimal kinase fold, but lacks an activation loop and the GHI subdomain. Nevertheless, all catalytically important residues are conserved. ATP binding proceeds with minimal structural rearrangements. The NleH structure is the first for the bacterial effector kinases family. NleHs and their homologous effector kinases form a new kinase family within the cluster of eukaryotic-like kinases that includes also Rio, Bud32, and KdoK families.


    Organizational Affiliation

    Department of Biochemistry, University of Saskatchewan, 107 Wiggins Road, Saskatoon, SK S7N 5E5, Canada; Department of Biochemistry, McGill University, 3655 Promenade Sir Willam Osler, Montreal, QC H3G 1Y6, Canada. Electronic address: miroslaw.cygler@usask.ca.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Effector NleH2
A, B, C, D
167Escherichia coli O157:H7Mutation(s): 0 
Gene Names: ECs1814nleh2Z6021nleH1_2ECs_1814
EC: 2.7.11.1
Find proteins for Q8XAL6 (Escherichia coli O157:H7)
Go to UniProtKB:  Q8XAL6
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.27 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.174 
  • R-Value Observed: 0.176 
  • Space Group: P 4 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 145.288α = 90
b = 145.288β = 90
c = 83.456γ = 90
Software Package:
Software NamePurpose
SCALEPACKdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
MxDCdata collection
DENZOdata reduction
AutoSolphasing
PHENIXrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-01-22
    Type: Initial release
  • Version 1.1: 2014-10-08
    Changes: Database references
  • Version 1.2: 2017-11-15
    Changes: Refinement description