2ZZ8

Crystal structure of LipL32, the most abundant surface protein of pathogenic leptospira spp


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.01 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.181 
  • R-Value Observed: 0.183 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Crystal structure of LipL32, the most abundant surface protein of pathogenic Leptospira spp.

Vivian, J.P.Beddoe, T.McAlister, A.D.Wilce, M.C.Zaker-Tabrizi, L.Troy, S.Byres, E.Hoke, D.E.Cullen, P.A.Lo, M.Murray, G.L.Adler, B.Rossjohn, J.

(2009) J Mol Biol 387: 1229-1238

  • DOI: https://doi.org/10.1016/j.jmb.2009.02.038
  • Primary Citation of Related Structures:  
    2ZZ8

  • PubMed Abstract: 

    Spirochetes of the genus Leptospira cause leptospirosis in humans and animals worldwide. Proteins exposed on the bacterial cell surface are implicated in the pathogenesis of leptospirosis. However, the biological role of the majority of these proteins is unknown; this is principally due to the lack of genetic systems for investigating Leptospira and the absence of any structural information on leptospiral antigens. To address this, we have determined the 2.0-A-resolution structure of the lipoprotein LipL32, the most abundant outer-membrane and surface protein present exclusively in pathogenic Leptospira species. The extracellular domain of LipL32 revealed a compact, globular, "jelly-roll" fold from which projected an unusual extended beta-hairpin that served as a principal mediator of the observed crystallographic dimer. Two acid-rich patches were also identified as potential binding sites for positively charged ligands, such as laminin, to which LipL32 has a propensity to bind. Although LipL32 shared no significant sequence identity to any known protein, it possessed structural homology to the adhesins that bind components of the extracellular matrix, suggesting that LipL32 functions in an analogous manner. Moreover, the structure provides a framework for understanding the immunological role of this major surface lipoprotein.


  • Organizational Affiliation

    The Protein Crystallography Unit, Department of Biochemistry and Molecular Biology, School of Biomedical Sciences, Monash University, Clayton, Victoria 3800, Australia.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
LipL32 protein
A, B
241Leptospira interrogansMutation(s): 0 
Gene Names: lipl32
UniProt
Find proteins for O34094 (Leptospira interrogans serogroup Icterohaemorrhagiae serovar Lai (strain 56601))
Explore O34094 
Go to UniProtKB:  O34094
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO34094
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.01 Å
  • R-Value Free: 0.216 
  • R-Value Work: 0.181 
  • R-Value Observed: 0.183 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 125.895α = 90
b = 125.895β = 90
c = 95.991γ = 120
Software Package:
Software NamePurpose
REFMACrefinement
CrystalCleardata collection
MOSFLMdata reduction
SCALAdata scaling
SHELXSphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-02-24
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Advisory, Version format compliance