4B09

Structure of unphosphorylated BaeR dimer


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.3 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.225 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The Dimeric Form of the Unphosphorylated Response Regulator Baer.

Choudhury, H.G.Beis, K.

(2013) Protein Sci. 22: 1287

  • DOI: 10.1002/pro.2311

  • PubMed Abstract: 
  • Bacterial response regulators (RRs) can regulate the expression of genes that confer antibiotic resistance; they contain a receiver and an effector domain and their ability to bind DNA is based on the dimerization state. This is triggered by phosphor ...

    Bacterial response regulators (RRs) can regulate the expression of genes that confer antibiotic resistance; they contain a receiver and an effector domain and their ability to bind DNA is based on the dimerization state. This is triggered by phosphorylation of the receiver domain by a kinase. However, even in the absence of phosphorylation RRs can exist in equilibrium between monomers and dimers with phosphorylation shifting the equilibrium toward the dimer form. We have determined the crystal structure of the unphosphorylated dimeric BaeR from Escherichia coli. The dimer interface is formed by a domain swap at the receiver domain. In comparison with the unphosphorylated dimeric PhoP from Mycobacterium tuberculosis, BaeR displays an asymmetry of the effector domains.


    Organizational Affiliation

    Division of Molecular Biosciences, Imperial College London, London, South Kensington, SW7 2AZ, United Kingdom; Membrane Protein Lab, Diamond Light Source, Harwell Science and Innovation Campus, Chilton, Oxfordshire, OX11 0DE, United Kingdom; Research Complex at Harwell, Harwell Oxford, Didcot, Oxforsdhire OX11 0FA, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TRANSCRIPTIONAL REGULATORY PROTEIN BAER
A, B, C, D, E, F, G, H, I, J, K, L
240Escherichia coli O6:H1 (strain CFT073 / ATCC 700928 / UPEC)Mutation(s): 1 
Gene Names: baeR
Find proteins for P69229 (Escherichia coli O6:H1 (strain CFT073 / ATCC 700928 / UPEC))
Go to UniProtKB:  P69229
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
TBR
Query on TBR

Download SDF File 
Download CCD File 
A, B, C, D, E, F, G, I, K
HEXATANTALUM DODECABROMIDE
DODECABROMOHEXATANTALUM
Br12 Ta6
YWYIQTPPCOBSGN-UHFFFAOYSA-M
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
CAS
Query on CAS
A, B, C, D, E, F, G, H, I, J, K, L
L-PEPTIDE LINKINGC5 H12 As N O2 SCYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.3 Å
  • R-Value Free: 0.245 
  • R-Value Work: 0.225 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 236.602α = 90.00
b = 130.401β = 90.40
c = 198.213γ = 90.00
Software Package:
Software NamePurpose
SHARPphasing
SCALAdata scaling
PHENIXrefinement
XDSdata reduction
SHELXDphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-07-10
    Type: Initial release
  • Version 1.1: 2013-07-31
    Type: Database references
  • Version 1.2: 2013-09-25
    Type: Database references