3UAU

Crystal structure of the lipoprotein JlpA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.242 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Crystal structure of JlpA, a surface-exposed lipoprotein adhesin of Campylobacter jejuni.

Kawai, F.Paek, S.Choi, K.J.Prouty, M.Kanipes, M.I.Guerry, P.Yeo, H.J.

(2012) J.Struct.Biol. 177: 583-588

  • DOI: 10.1016/j.jsb.2012.01.001

  • PubMed Abstract: 
  • The Campylobacter jejuni JlpA protein is a surface-exposed lipoprotein that was discovered as an adhesin promoting interaction with host epithelium cells, an early critical step in the pathogenesis of C. jejuni disease. Increasing evidence ascertaine ...

    The Campylobacter jejuni JlpA protein is a surface-exposed lipoprotein that was discovered as an adhesin promoting interaction with host epithelium cells, an early critical step in the pathogenesis of C. jejuni disease. Increasing evidence ascertained that JlpA is antigenic, indicating a role of JlpA in immune response during the infectious process. Here, we report the crystal structure of JlpA at 2.7Å resolution, revealing a catcher's mitt shaped unclosed half β-barrel. Although the apparent architecture of JlpA is somewhat reminiscent of other bacterial lipoproteins such as LolB, the topology of JlpA is unique among the bacterial surface proteins reported to date and therefore JlpA represents a novel bacterial cell surface lipoprotein. The concave face of the structure results in an unusually large hydrophobic basin with a localized acidic pocket, suggesting a possibility that JlpA may accommodate multiple ligands. Therefore, the structure provides framework for determining the molecular function of JlpA and new strategies for the rational design of small molecule inhibitors efficiently targeting JlpA.


    Organizational Affiliation

    Department of Biology and Biochemistry, University of Houston, Houston, TX 77204, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Surface-exposed lipoprotein
A, B
379Campylobacter jejuni subsp. jejuni serotype O:23/36 (strain 81-176)Mutation(s): 0 
Gene Names: jlpA
Find proteins for A0A0H3P9U7 (Campylobacter jejuni subsp. jejuni serotype O:23/36 (strain 81-176))
Go to UniProtKB:  A0A0H3P9U7
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.7 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.242 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 111.632α = 90.00
b = 111.632β = 90.00
c = 170.369γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
HKL-3000data collection
SHARPphasing
REFMACrefinement
HKL-3000data reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2011-10-22 
  • Released Date: 2012-07-25 
  • Deposition Author(s): Kawai, F., Yeo, H.J.

Revision History 

  • Version 1.0: 2012-07-25
    Type: Initial release