2VED

crystal structure of the chimerical mutant CapABK55M protein


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.204 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural Basis for the Regulation Mechanism of the Tyrosine Kinase Capb from Staphylococcus Aureus.

Olivares-Illana, V.Meyer, P.Bechet, E.Gueguen-Chaignon, V.Soulat, D.Lazereg-Riquier, S.Mijakovic, I.Deutscher, J.Cozzone, A.J.Laprevote, O.Morera, S.Grangeasse, C.Nessler, S.

(2008) Plos Biol. 6: E143

  • DOI: 10.1371/journal.pbio.0060143
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Bacteria were thought to be devoid of tyrosine-phosphorylating enzymes. However, several tyrosine kinases without similarity to their eukaryotic counterparts have recently been identified in bacteria. They are involved in many physiological processes ...

    Bacteria were thought to be devoid of tyrosine-phosphorylating enzymes. However, several tyrosine kinases without similarity to their eukaryotic counterparts have recently been identified in bacteria. They are involved in many physiological processes, but their accurate functions remain poorly understood due to slow progress in their structural characterization. They have been best characterized as copolymerases involved in the synthesis and export of extracellular polysaccharides. These compounds play critical roles in the virulence of pathogenic bacteria, and bacterial tyrosine kinases can thus be considered as potential therapeutic targets. Here, we present the crystal structures of the phosphorylated and unphosphorylated states of the tyrosine kinase CapB from the human pathogen Staphylococcus aureus together with the activator domain of its cognate transmembrane modulator CapA. This first high-resolution structure of a bacterial tyrosine kinase reveals a 230-kDa ring-shaped octamer that dissociates upon intermolecular autophosphorylation. These observations provide a molecular basis for the regulation mechanism of the bacterial tyrosine kinases and give insights into their copolymerase function.


    Organizational Affiliation

    Laboratoire d'Enzymologie et Biochimie Structurales, CNRS, Gif sur Yvette, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
MEMBRANE PROTEIN CAPA1, PROTEIN TYROSINE KINASE
A, B
271Staphylococcus aureusMutation(s): 1 
Gene Names: capA1 (cap5A, capA), capB2 (epsD)
EC: 2.7.10.2
Find proteins for A8YPQ6 (Staphylococcus aureus)
Go to UniProtKB:  A8YPQ6
Find proteins for A8YPQ5 (Staphylococcus aureus)
Go to UniProtKB:  A8YPQ5
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ADP
Query on ADP

Download SDF File 
Download CCD File 
A, B
ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
A, B
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.6 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.204 
  • Space Group: I 4
Unit Cell:
Length (Å)Angle (°)
a = 163.200α = 90.00
b = 163.200β = 90.00
c = 57.200γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
PHASERphasing
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-07-01
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance