2MC7 | pdb_00002mc7

Structure of Salmonella MgtR

• PDB DOI: https://doi.org/10.2210/pdb2MC7/pdb
• BMRB: 19430

• Classification: MEMBRANE PROTEIN
• Organism(s): Salmonella enterica subsp. enterica serovar Typhimurium
• Mutation(s): No 


• Deposited: 2013-08-15 Released: 2013-10-30 
• Deposition Author(s): Jean-Francois, F., Dai, J., Yu, L., Myrick, A., Rubin, E., Fajer, P., Song, L., Zhou, H., Cross, T.

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Experimental Data Snapshot

• Method: SOLID-STATE NMR
• Conformers Calculated: 100 
• Conformers Submitted: 1 
• Selection Criteria: target function 

Literature

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 Biology 426: 436-446

• PubMed: 24140750 
• DOI: https://doi.org/10.1016/j.jmb.2013.10.014
• Primary Citation Related Structures: 
  2MC7


• 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.

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Organizational Affiliation: 
• National High Magnetic Field Laboratory, Tallahassee, FL 32306, USA; Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306, USA.
Department of Physics, Florida State University, Tallahassee, FL 32306, USA; Institute of Molecular Biophysics, Florida State University, Tallahassee, FL 32306, USA.
University of Science and Technology of China, Hefei 230031, China.
Department of Immunology and Infectious Diseases, Harvard School of Public Health, Boston, MA 02138, USA.
National High Magnetic Field Laboratory, Tallahassee, FL 32306, USA; Institute of Molecular Biophysics, Florida State University, Tallahassee, FL 32306, USA.
National High Magnetic Field Laboratory, Tallahassee, FL 32306, USA.
National High Magnetic Field Laboratory, Tallahassee, FL 32306, USA; Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306, USA; Institute of Molecular Biophysics, Florida State University, Tallahassee, FL 32306, USA. Electronic address: [e-mail].

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 3.46 kDa 
• Atom Count: 243 
• Modeled Residue Count: 30 
• Deposited Residue Count: 30 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Regulatory peptide	A	30	Salmonella enterica subsp. enterica serovar Typhimurium	Mutation(s): 0
UniProt
Find proteins for B0LJC7 (Salmonella typhimurium) Explore B0LJC7  Go to UniProtKB:  B0LJC7

Experimental Data & Validation

Experimental Data

• Method: SOLID-STATE NMR
• Conformers Calculated: 100 
• Conformers Submitted: 1 
• Selection Criteria: target function 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-10-30 
Deposition Author(s): Jean-Francois, F., Dai, J., Yu, L., Myrick, A., Rubin, E., Fajer, P., Song, L., Zhou, H., Cross, T.

Revision History  

• 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