2N9U

Solution NMR structure of Erythrobacter litoralis PhyR response regulator REC domain


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 20 
  • Conformers Submitted: 20 
  • Selection Criteria: all calculated structures submitted 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Basis of Mutual Domain Inhibition in a Bacterial Response Regulator.

Correa, F.Gardner, K.H.

(2016) Cell Chem Biol 23: 945-954

  • DOI: 10.1016/j.chembiol.2016.07.010

  • PubMed Abstract: 
  • Information transmission in biological signaling networks is commonly considered to be a unidirectional flow of information between protein partners. According to this view, many bacterial response regulator proteins utilize input receiver (REC) doma ...

    Information transmission in biological signaling networks is commonly considered to be a unidirectional flow of information between protein partners. According to this view, many bacterial response regulator proteins utilize input receiver (REC) domains to "switch" functional outputs, using REC phosphorylation to shift pre-existing equilibria between inactive and active conformations. However, recent data indicate that output domains themselves also shift such equilibria, implying a "mutual inhibition" model. Here we use solution nuclear magnetic resonance to provide a mechanistic basis for such control in a PhyR-type response regulator. Our structure of the isolated, non-phosphorylated REC domain surprisingly reveals a fully active conformation, letting us identify structural and dynamic changes imparted by the output domain to inactivate the full-length protein. Additional data reveal transient structural changes within the full-length protein, facilitating activation. Our data provide a basis for understanding the changes that REC and output domains undergo to set a default "inactive" state.


    Organizational Affiliation

    Structural Biology Initiative, CUNY Advanced Science Research Center, New York, NY 10031, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Response regulator
A
129Erythrobacter litoralis (strain HTCC2594)Mutation(s): 0 
Find proteins for Q2N856 (Erythrobacter litoralis (strain HTCC2594))
Go to UniProtKB:  Q2N856
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 20 
  • Conformers Submitted: 20 
  • Selection Criteria: all calculated structures submitted 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-09-07
    Type: Initial release
  • Version 1.1: 2016-10-19
    Type: Database references
  • Version 1.2: 2016-12-28
    Type: Database references