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 
  • R-Value Observed: 0.226 

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
  • Primary Citation of Related Structures:  
    3B9Q

  • 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 Universität Heidelberg, INF 328, D-69120, Heidelberg, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Chloroplast SRP receptor homolog, alpha subunit CPFTSYA302Arabidopsis thalianaMutation(s): 0 
Gene Names: CPFTSYFTSYAt2g45770F4I18.25
Find proteins for O80842 (Arabidopsis thaliana)
Explore O80842 
Go to UniProtKB:  O80842
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MLI
Query on MLI

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 
  • R-Value Observed: 0.226 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 87.897α = 90
b = 84.15β = 90
c = 99.374γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
ADSCdata collection
MOSFLMdata reduction
SCALAdata scaling
PHASERphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

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