5IEB

Solution structure of SdrG from Sphingomonas melonis Fr1


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 30 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the least restraint violations 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Role of the PFXFATG[G/Y] Motif in the Activation of SdrG, a Response Regulator Involved in the Alphaproteobacterial General Stress Response.

Campagne, S.Dintner, S.Gottschlich, L.Thibault, M.Bortfeld-Miller, M.Kaczmarczyk, A.Francez-Charlot, A.Allain, F.H.Vorholt, J.A.

(2016) Structure 24: 1237-1247

  • DOI: https://doi.org/10.1016/j.str.2016.05.015
  • Primary Citation of Related Structures:  
    5IEB, 5IEJ

  • PubMed Abstract: 

    Two-component systems are major signal transduction pathways, which consist of histidine kinases and response regulators that communicate through phosphorylation. Here, we highlight a distinct class of single-domain response regulators containing the PFXFATG[G/Y] motif that are activated by a mechanism distinct from the Y-T coupling described for prototypical receiver domains. We first solved the structures of inactive and active SdrG, a representative of the FAT GUY family, and then biochemically and genetically characterized variants in which residues in this motif were mutated. Our results support a model of activation mainly driven by a conserved lysine and reveal that the rotation of the threonine induces the reorganization of several aromatic residues in and around the PFXFATG[G/Y] motif to generate intermediates resembling those occurring during classical Y-T coupling. Overall, this helps define a new subfamily of response regulators that emerge as important players in physiological adaptation.


  • Organizational Affiliation

    Institute of Microbiology, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, 8093 Zürich, Switzerland; Institute of Molecular Biology and Biophysics, ETH Zurich, Hönggerbergring 64, 8093 Zürich, Switzerland. Electronic address: sebastien.campagne@mol.biol.ethz.ch.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Sensory transduction regulatory protein130Sphingomonas melonis FR1Mutation(s): 0 
Gene Names: SR41_04275
UniProt
Find proteins for A0A0D1MA58 (Sphingomonas melonis)
Explore A0A0D1MA58 
Go to UniProtKB:  A0A0D1MA58
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A0D1MA58
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 30 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the least restraint violations 

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
ETHSwitzerlandETH-21 09-3

Revision History  (Full details and data files)

  • Version 1.0: 2016-07-20
    Type: Initial release
  • Version 1.1: 2016-08-17
    Changes: Database references
  • Version 1.2: 2019-05-08
    Changes: Data collection
  • Version 1.3: 2019-11-06
    Changes: Data collection