Crystal structure of Legionella pneumophila effector lpg2328

Experimental Data Snapshot

  • Resolution: 1.40 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.164 
  • R-Value Observed: 0.166 

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This is version 1.5 of the entry. See complete history


Crystal structure of the Legionella effector Lem22.

Kozlov, G.Wong, K.Gehring, K.

(2018) Proteins 86: 263-267

  • DOI: https://doi.org/10.1002/prot.25427
  • Primary Citation of Related Structures:  
    5WD8, 5WD9

  • PubMed Abstract: 

    Legionella pneumophila is a pathogen causing severe pneumonia in humans called Legionnaires' disease. Lem22 is a previously uncharacterized effector protein conserved in multiple Legionella strains. Here, we report the crystal structure of Lem22 from the Philadelphia strain, also known as lpg2328, at 1.40 Å resolution. The structure shows an up-and-down three-helical bundle with a significant structural similarity to a number of protein-binding domains involved in apoptosis and membrane trafficking. Sequence conservation identifies a putative functional site on the interface of helices 2 and 3. The structure is an important step toward a functional characterization of Lem22.

  • Organizational Affiliation

    Department of Biochemistry, Groupe de recherche axé sur la structure des protéines, McGill University, Montreal, QC, H3G 0B1, Canada.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Lem2291Legionella pneumophila subsp. pneumophila ATCC 43290Mutation(s): 0 
Gene Names: lp12_2320
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 1.40 Å
  • R-Value Free: 0.203 
  • R-Value Work: 0.164 
  • R-Value Observed: 0.166 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 83.505α = 90
b = 24.852β = 114.58
c = 41.297γ = 90
Software Package:
Software NamePurpose
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Canadian Institutes of Health Research (CIHR)Canada--

Revision History  (Full details and data files)

  • Version 1.0: 2017-11-29
    Type: Initial release
  • Version 1.1: 2017-12-13
    Changes: Database references, Structure summary
  • Version 1.2: 2018-04-25
    Changes: Data collection, Database references
  • Version 1.3: 2020-01-08
    Changes: Author supporting evidence
  • Version 1.4: 2024-03-13
    Changes: Data collection, Database references
  • Version 1.5: 2024-04-03
    Changes: Refinement description