2ZP2

C-terminal domain of KipI from Bacillus subtilis


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.01 Å
  • R-Value Free: 0.344 
  • R-Value Work: 0.264 
  • R-Value Observed: 0.267 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Histidine kinase regulation by a cyclophilin-like inhibitor

Jacques, D.A.Langley, D.B.Jeffries, C.M.Cunningham, K.A.Burkholder, W.F.Guss, J.M.Trewhella, J.

(2008) J Mol Biol 384: 422-435

  • DOI: 10.1016/j.jmb.2008.09.017
  • Primary Citation of Related Structures:  
    2ZP2

  • PubMed Abstract: 
  • The sensor histidine kinase A (KinA) from Bacillus subtilis triggers a phosphorelay that activates sporulation. The antikinase KipI prevents sporulation by binding KinA and inhibiting the autophosphorylation reaction. Using neutron contrast variation, mutagenesis, and fluorescence data, we show that two KipI monomers bind via their C-domains at a conserved proline in the KinA dimerization and histidine-phosphotransfer (DHp) domain ...

    The sensor histidine kinase A (KinA) from Bacillus subtilis triggers a phosphorelay that activates sporulation. The antikinase KipI prevents sporulation by binding KinA and inhibiting the autophosphorylation reaction. Using neutron contrast variation, mutagenesis, and fluorescence data, we show that two KipI monomers bind via their C-domains at a conserved proline in the KinA dimerization and histidine-phosphotransfer (DHp) domain. Our crystal structure of the KipI C-domain reveals the binding motif has a distinctive hydrophobic groove formed by a five-stranded antiparallel beta-sheet; a characteristic of the cyclophilin family of proteins that bind prolines and often act as cis-trans peptidyl-prolyl isomerases. We propose that the DHp domain of KinA transmits conformational signals to regulate kinase activity via this proline-mediated interaction. Given that both KinA and KipI homologues are widespread in the bacterial kingdom, this mechanism has broad significance in bacterial signal transduction.


    Organizational Affiliation

    School of Molecular and Microbial Biosciences, University of Sydney, Sydney, New South Wales 2006, Australia.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Kinase A inhibitorA, B141Bacillus subtilisMutation(s): 0 
Gene Names: kipI
EC: 3.5.2.9
Find proteins for P60495 (Bacillus subtilis (strain 168))
Explore P60495 
Go to UniProtKB:  P60495
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.01 Å
  • R-Value Free: 0.344 
  • R-Value Work: 0.264 
  • R-Value Observed: 0.267 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 44.909α = 90
b = 84.417β = 90
c = 84.409γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MAR345dtbdata collection
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2009-01-20
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance