1J8M

Signal Recognition Particle conserved GTPase domain from A. ambivalens


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.219 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

The crystal structure of the conserved GTPase of SRP54 from the archaeon Acidianus ambivalens and its comparison with related structures suggests a model for the SRP-SRP receptor complex.

Montoya, G.Kaat, K.Moll, R.Schafer, G.Sinning, I.

(2000) Structure 8: 515-525

  • DOI: 10.1016/s0969-2126(00)00131-3
  • Primary Citation of Related Structures:  
    1J8M, 1J8Y

  • PubMed Abstract: 
  • Protein targeting to the endoplasmic reticulum in eukaryotes and to the cell membrane in prokaryotes is mediated by the signal recognition particle (SRP) and its receptor (SR). Both contain conserved GTPase domains in the signal-peptide-binding proteins (SRP54 and Ffh) and the SR proteins (SRalpha and FtsY) ...

    Protein targeting to the endoplasmic reticulum in eukaryotes and to the cell membrane in prokaryotes is mediated by the signal recognition particle (SRP) and its receptor (SR). Both contain conserved GTPase domains in the signal-peptide-binding proteins (SRP54 and Ffh) and the SR proteins (SRalpha and FtsY). These GTPases are involved in the regulation of protein targeting. Most studies so far have focussed on the SRP machinery of mammals and bacteria, leaving the SRP system of archaea less well understood.


    Related Citations: 
    • Crystallization and Preliminary X-ray Diffraction Studies on the Conserved GTPase Domain of the Signal Recognition Particle from Acidianus ambivalens
      Montoya, G., te Kaat, K., Moll, R., Schafer, G., Sinning, I.
      (1999) Acta Crystallogr D Biol Crystallogr 55: 1949

    Organizational Affiliation

    European Molecular Biology Laboratory, Structural Biology Programme, Heidelberg, D-69017, Germany.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
SIGNAL RECOGNITION 54 KDA PROTEINA [auth F]297Acidianus ambivalensMutation(s): 0 
Gene Names: srp54ffh
UniProt
Find proteins for P70722 (Acidianus ambivalens)
Explore P70722 
Go to UniProtKB:  P70722
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP70722
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.00 Å
  • R-Value Free: 0.270 
  • R-Value Work: 0.216 
  • R-Value Observed: 0.219 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 64.866α = 90
b = 128.02β = 90
c = 72.004γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
MOSFLMdata reduction
CCP4data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2001-06-13
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance