3B9Q

The crystal structure of cpFtsY from Arabidopsis thaliana


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.223 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

The structure of the chloroplast signal recognition particle (SRP) receptor reveals mechanistic details of SRP GTPase activation and a conserved membrane targeting site

Stengel, K.F.Holdermann, I.Wild, K.Sinning, I.

(2007) Febs Lett. 581: 5671-5676

  • DOI: 10.1016/j.febslet.2007.11.024

  • PubMed Abstract: 
  • Two GTPases in the signal recognition particle and its receptor (FtsY) regulate protein targeting to the membrane by formation of a heterodimeric complex. The activation of both GTPases in the complex is essential for protein translocation. We presen ...

    Two GTPases in the signal recognition particle and its receptor (FtsY) regulate protein targeting to the membrane by formation of a heterodimeric complex. The activation of both GTPases in the complex is essential for protein translocation. We present the crystal structure of chloroplast FtsY (cpFtsY) at 1.75 A resolution. The comparison with FtsY structures in different nucleotide bound states shows structural changes relevant for GTPase activation and provides insights in how cpFtsY is pre-organized for complex formation with cpSRP54. The structure contains an amino-terminal amphipathic helix similar to the membrane targeting sequence of Escherichia coli FtsY. In cpFtsY this motif is extended, which might be responsible for the enhanced attachment of the protein to the thylakoid membrane.


    Organizational Affiliation

    Biochemie-Zentrum der Universit├Ąt Heidelberg, INF 328, D-69120, Heidelberg, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Chloroplast SRP receptor homolog, alpha subunit CPFTSY
A
302Arabidopsis thalianaMutation(s): 0 
Gene Names: CPFTSY (FTSY)
Find proteins for O80842 (Arabidopsis thaliana)
Go to UniProtKB:  O80842
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MLI
Query on MLI

Download SDF File 
Download CCD File 
A
MALONATE ION
C3 H2 O4
OFOBLEOULBTSOW-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.75 Å
  • R-Value Free: 0.279 
  • R-Value Work: 0.223 
  • Space Group: I 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 87.897α = 90.00
b = 84.150β = 90.00
c = 99.374γ = 90.00
Software Package:
Software NamePurpose
MOSFLMdata reduction
ADSCdata collection
REFMACrefinement
PHASERphasing
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-12-25
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance