4O96

2.60 Angstrom resolution crystal structure of a protein kinase domain of type III effector NleH2 (ECs1814) from Escherichia coli O157:H7 str. Sakai


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.253 
  • R-Value Work: 0.208 
  • R-Value Observed: 0.210 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

Type III Effector NleH2 from Escherichia coli O157:H7 str. Sakai Features an Atypical Protein Kinase Domain.

Halavaty, A.S.Anderson, S.M.Wawrzak, Z.Kudritska, M.Skarina, T.Anderson, W.F.Savchenko, A.

(2014) Biochemistry 53: 2433-2435

  • DOI: https://doi.org/10.1021/bi500016j
  • Primary Citation of Related Structures:  
    4O96

  • PubMed Abstract: 

    The crystal structure of a C-terminal domain of enterohemorrhagic Escherichia coli type III effector NleH2 has been determined to 2.6 Å resolution. The structure resembles those of protein kinases featuring the catalytic, activation, and glycine-rich loop motifs and ATP-binding site. The position of helix αC and the lack of a conserved arginine within an equivalent HRD motif suggested that the NleH2 kinase domain's active conformation might not require phosphorylation. The activation segment markedly contributed to the dimerization interface of NleH2, which can also accommodate the NleH1-NleH2 heterodimer. The C-terminal PDZ-binding motif of NleH2 provided bases for interaction with host proteins.


  • Organizational Affiliation

    Center for Structural Genomics of Infectious Diseases (CSGID), Molecular Pharmacology and Biological Chemistry, Northwestern University , Chicago, Illinois 60611, United States.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
type III effector protein kinase
A, B, C, D
166Escherichia coli O157:H7 str. SakaiMutation(s): 0 
Gene Names: ECs1814Z6021
UniProt
Find proteins for Q8XAL6 (Escherichia coli O157:H7)
Explore Q8XAL6 
Go to UniProtKB:  Q8XAL6
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ8XAL6
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

Unit Cell:
Length ( Å )Angle ( ˚ )
a = 147.252α = 90
b = 147.252β = 90
c = 83.05γ = 90
Software Package:
Software NamePurpose
Blu-Icedata collection
PHENIXmodel building
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling
PHENIXphasing

Structure Validation

View Full Validation Report



Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2014-01-15
    Type: Initial release
  • Version 1.1: 2014-04-16
    Changes: Database references, Structure summary
  • Version 1.2: 2014-05-21
    Changes: Database references
  • Version 1.3: 2017-11-22
    Changes: Refinement description
  • Version 1.4: 2024-02-28
    Changes: Data collection, Database references, Derived calculations, Refinement description