1FTS

SIGNAL RECOGNITION PARTICLE RECEPTOR FROM E. COLI


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.222 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of the NG domain from the signal-recognition particle receptor FtsY.

Montoya, G.Svensson, C.Luirink, J.Sinning, I.

(1997) Nature 385: 365-368

  • DOI: 10.1038/385365a0

  • PubMed Abstract: 
  • Newly synthesized proteins destined either for secretion or incorporation into membranes are targeted to the membrane translocation machinery by a ubiquitous system consisting of a signal-recognition particle (SRP) and its receptor. Both the SRP rece ...

    Newly synthesized proteins destined either for secretion or incorporation into membranes are targeted to the membrane translocation machinery by a ubiquitous system consisting of a signal-recognition particle (SRP) and its receptor. Both the SRP receptor and the protein within the SRP that binds the signal sequence contain GTPases. These two proteins, together with the RNA component of the SRP, form a complex and thereby regulate each other's GTPase activity. Here we report the structure of the GTPase-containing portion of FtsY, the functional homologue of the SRP receptor of Escherichia coli, at 2.2 A resolution without bound nucleotide. This so-called NG domain displays similarities to the Ras-related GTPases, as well as features unique to the SRP-type GTPases, such as a separate amino-terminal domain, an insertion within the p21ras (Ras) effector domain, and a wide-open GTP-binding region. The structure explains the low affinity of FtsY for GTP, and suggests rearrangements that may occur on nucleotide binding. It also identifies regions potentially involved in the transmission of signals between domains and in interactions with regulatory proteins.


    Related Citations: 
    • Crystal Structure of the Ng Domain from the Signal-Recognition Particle Receptor Ftsy
      Montoya, G.,Svensson, C.,Luirink, J.,Sinning, I.
      (1997) Nature 385: 365


    Organizational Affiliation

    European Molecular Biology Laboratory, Structural Biology Programme, Heidelberg, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
FTSY
A
295Escherichia coli (strain K12)Gene Names: ftsY
Find proteins for P10121 (Escherichia coli (strain K12))
Go to UniProtKB:  P10121
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.280 
  • R-Value Work: 0.222 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 32.559α = 90.00
b = 79.577β = 94.45
c = 59.206γ = 90.00
Software Package:
Software NamePurpose
DENZOdata reduction
X-PLORrefinement
SCALEPACKdata scaling
PHASESphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1998-05-20
    Type: Initial release
  • Version 1.1: 2008-03-04
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance