Structure of Salmonella MgtR

Experimental Data Snapshot

  • Conformers Calculated: 100 
  • Conformers Submitted: 
  • Selection Criteria: target function 

wwPDB Validation   3D Report Full Report

This is version 1.3 of the entry. See complete history


Binding of MgtR, a Salmonella Transmembrane Regulatory Peptide, to MgtC, a Mycobacterium tuberculosis Virulence Factor: A Structural Study.

Jean-Francois, F.L.Dai, J.Yu, L.Myrick, A.Rubin, E.Fajer, P.G.Song, L.Zhou, H.X.Cross, T.A.

(2014) J Mol Biol 426: 436-446

  • DOI: https://doi.org/10.1016/j.jmb.2013.10.014
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    MgtR, a highly hydrophobic peptide expressed in Salmonella enterica serovar Typhimurium, inhibits growth in macrophages through binding to the membrane protein MgtC that has been identified as essential for replication in macrophages. While the Mycobacterium tuberculosis MgtC is highly homologous to its S. Typhi analogue, there does not appear to be an Mtb homologue for MgtR, raising significant pharmacological interest in this system. Here, solid-state NMR and EPR spectroscopy in lipid bilayer preparations were used to demonstrate the formation of a heterodimer between S. Typhi MgtR and the transmembrane helix 4 of Mtb MgtC. Based on the experimental restraints, a structural model of this heterodimer was developed using computational techniques. The result is that MgtR appears to be ideally situated in the membrane to influence the functionality of MgtC.

  • Organizational Affiliation

    National High Magnetic Field Laboratory, Tallahassee, FL 32306, USA; Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Regulatory peptide30Salmonella enterica subsp. enterica serovar TyphimuriumMutation(s): 0 
Find proteins for B0LJC7 (Salmonella typhimurium)
Explore B0LJC7 
Go to UniProtKB:  B0LJC7
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupB0LJC7
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Conformers Calculated: 100 
  • Conformers Submitted: 
  • Selection Criteria: target function 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-10-30
    Type: Initial release
  • Version 1.1: 2013-11-06
    Changes: Database references
  • Version 1.2: 2014-01-22
    Changes: Database references
  • Version 1.3: 2024-05-01
    Changes: Data collection, Database references