5DCM

Structure of a lantibiotic response regulator: C-terminal domain of the nisin resistance regulator NsrR


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.189 

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Literature

Structure of the Response Regulator NsrR from Streptococcus agalactiae, Which Is Involved in Lantibiotic Resistance.

Khosa, S.Hoeppner, A.Gohlke, H.Schmitt, L.Smits, S.H.

(2016) PLoS One 11: e0149903-e0149903

  • DOI: https://doi.org/10.1371/journal.pone.0149903
  • Primary Citation of Related Structures:  
    5DCL, 5DCM

  • PubMed Abstract: 

    Lantibiotics are antimicrobial peptides produced by Gram-positive bacteria. Interestingly, several clinically relevant and human pathogenic strains are inherently resistant towards lantibiotics. The expression of the genes responsible for lantibiotic resistance is regulated by a specific two-component system consisting of a histidine kinase and a response regulator. Here, we focused on a response regulator involved in lantibiotic resistance, NsrR from Streptococcus agalactiae, and determined the crystal structures of its N-terminal receiver domain and C-terminal DNA-binding effector domain. The C-terminal domain exhibits a fold that classifies NsrR as a member of the OmpR/PhoB subfamily of regulators. Amino acids involved in phosphorylation, dimerization, and DNA-binding were identified and demonstrated to be conserved in lantibiotic resistance regulators. Finally, a model of the full-length NsrR in the active and inactive state provides insights into protein dimerization and DNA-binding.


  • Organizational Affiliation

    Institute of Biochemistry, Heinrich Heine University Duesseldorf, Universitaetsstr. 1, 40225, Duesseldorf, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
PhoB family transcriptional regulator243Streptococcus agalactiaeMutation(s): 0 
Gene Names: DK41_05180EN72_05470
UniProt
Find proteins for X5JZS1 (Streptococcus agalactiae)
Explore X5JZS1 
Go to UniProtKB:  X5JZS1
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupX5JZS1
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
PhoB family transcriptional regulator243Streptococcus agalactiaeMutation(s): 0 
Gene Names: DK41_05180EN72_05470
UniProt
Find proteins for X5JZS1 (Streptococcus agalactiae)
Explore X5JZS1 
Go to UniProtKB:  X5JZS1
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupX5JZS1
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.219 
  • R-Value Work: 0.187 
  • R-Value Observed: 0.189 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 56.38α = 90
b = 60.46β = 90
c = 56.85γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2016-07-06
    Type: Initial release