2PXG

NMR Solution Structure of OmlA


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 20 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the least restraint violations 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

The solution structure of the outer membrane lipoprotein OmlA from Xanthomonas axonopodis pv. citri reveals a protein fold implicated in protein-protein interaction.

Vanini, M.M.Spisni, A.Sforca, M.L.Pertinhez, T.A.Benedetti, C.E.

(2008) Proteins 71: 2051-2064

  • DOI: 10.1002/prot.21886

  • PubMed Abstract: 
  • The outer membrane lipoprotein A (OmlA) belongs to a family of bacterial small lipoproteins widely distributed across the beta and gamma proteobacteria. Although the role of numerous bacterial lipoproteins is known, the biological function of OmlA re ...

    The outer membrane lipoprotein A (OmlA) belongs to a family of bacterial small lipoproteins widely distributed across the beta and gamma proteobacteria. Although the role of numerous bacterial lipoproteins is known, the biological function of OmlA remains elusive. We found that in the citrus canker pathogen, Xanthomonas axonopodis pv. citri (X. citri), OmlA is coregulated with the ferric uptake regulator (Fur) and their expression is enhanced when X. citri is grown on citrus leaves, suggesting that these proteins are involved in plant-pathogen interaction. To gain insights into the function of OmlA, its conformational and dynamic features were determined by nuclear magnetic resonance. The protein has highly flexible N- and C- termini and a structurally well defined core composed of three beta-strands and two small alpha-helices, which pack against each other forming a two-layer alpha/beta scaffold. This protein fold resembles the domains of the beta-lactamase inhibitory protein BLIP, involved in protein-protein binding. In conclusion, the structure of OmlA does suggest that this protein may be implicated in protein-protein interactions required during X. citri infection.


    Related Citations: 
    • NMR Assignment of the Outer Membrane Lipoprotein (OmlA) from Xanthomonas axonopodis pv citri
      Vanini, M.M.T.,Benedetti, C.E.,Spisni, A.,Pertinhez, T.A.
      (2006) J.Biomol.NMR 36: 34


    Organizational Affiliation

    Center for Molecular and Structural Biology, Brazilian Synchrotron Light Laboratory, Campinas, SP, 13083-970, Brazil.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Outer membrane protein
A
118Xanthomonas axonopodis pv. citri (strain 306)Mutation(s): 1 
Gene Names: smpA (bamE)
Find proteins for Q8PMB6 (Xanthomonas axonopodis pv. citri (strain 306))
Go to UniProtKB:  Q8PMB6
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 20 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the least restraint violations 
  • Olderado: 2PXG Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-01-29
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance