1A0O

CHEY-BINDING DOMAIN OF CHEA IN COMPLEX WITH CHEY


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.95 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.187 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of the CheY-binding domain of histidine kinase CheA in complex with CheY.

Welch, M.Chinardet, N.Mourey, L.Birck, C.Samama, J.P.

(1998) Nat.Struct.Mol.Biol. 5: 25-29


  • PubMed Abstract: 
  • Bacterial adaptation to the environment is accomplished through the coordinated activation of specific sensory receptors and signal processing proteins. Among the best characterized of these pathways are those which employ the two-component paradigm. ...

    Bacterial adaptation to the environment is accomplished through the coordinated activation of specific sensory receptors and signal processing proteins. Among the best characterized of these pathways are those which employ the two-component paradigm. In these systems, signal transmission is mediated by Mg(2+)-dependent phospho-relay reactions between histidine auto-kinases and phospho-accepting receiver domains in response-regulator proteins. Although this mechanism of activation is common to all response-regulators, detrimental cross-talk between different two-component pathways within the same cell is minimized through the use of specific recognition domains. Here, we report the crystal structure, at 2.95 A resolution, of the response regulator of bacterial chemotaxis, CheY, bound to the recognition domain from its cognate histidine kinase, CheA. The structure suggests that molecular recognition, in this low affinity complex (KD = 2 microM), may also contribute to the mechanism of CheY activation.


    Organizational Affiliation

    Institut de Pharmacologie et de Biologie Structurale CNRS, UPR9062, Toulouse, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CHEY
A, C, E, G
128Escherichia coli (strain K12)Gene Names: cheY
Find proteins for P0AE67 (Escherichia coli (strain K12))
Go to UniProtKB:  P0AE67
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
CHEA
B, D, F, H
134Escherichia coli (strain K12)Gene Names: cheA
EC: 2.7.13.3
Find proteins for P07363 (Escherichia coli (strain K12))
Go to UniProtKB:  P07363
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MN
Query on MN

Download SDF File 
Download CCD File 
A, C, E, G
MANGANESE (II) ION
Mn
WAEMQWOKJMHJLA-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.95 Å
  • R-Value Free: 0.235 
  • R-Value Work: 0.187 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 53.900α = 90.00
b = 156.970β = 91.70
c = 65.970γ = 90.00
Software Package:
Software NamePurpose
CCP4data scaling
SCALAdata scaling
X-PLORmodel building
X-PLORrefinement
MOSFLMdata reduction
SHARPphasing
X-PLORphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-12-30
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance