2FFH

THE SIGNAL SEQUENCE BINDING PROTEIN FFH FROM THERMUS AQUATICUS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.20 Å
  • R-Value Free: 0.296 
  • R-Value Work: 0.257 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Crystal structure of the signal sequence binding subunit of the signal recognition particle.

Keenan, R.J.Freymann, D.M.Walter, P.Stroud, R.M.

(1998) Cell 94: 181-191

  • DOI: 10.1016/s0092-8674(00)81418-x
  • Primary Citation of Related Structures:  
    2FFH

  • PubMed Abstract: 
  • The crystal structure of the signal sequence binding subunit of the signal recognition particle (SRP) from Thermus aquaticus reveals a deep groove bounded by a flexible loop and lined with side chains of conserved hydrophobic residues. The groove defines a flexible, hydrophobic environment that is likely to contribute to the structural plasticity necessary for SRP to bind signal sequences of different lengths and amino acid sequence ...

    The crystal structure of the signal sequence binding subunit of the signal recognition particle (SRP) from Thermus aquaticus reveals a deep groove bounded by a flexible loop and lined with side chains of conserved hydrophobic residues. The groove defines a flexible, hydrophobic environment that is likely to contribute to the structural plasticity necessary for SRP to bind signal sequences of different lengths and amino acid sequence. The structure also reveals a helix-turn-helix motif containing an arginine-rich alpha helix that is required for binding to SRP RNA and is implicated in forming the core of an extended RNA binding surface.


    Related Citations: 
    • Structure of the Conserved GTPase Domain of the Signal Recognition Particle.
      Freymann, D.M., Keenan, R.J., Stroud, R.M., Walter, P.
      (1997) Nature 385: 361

    Organizational Affiliation

    Department of Biochemistry and Biophysics, School of Medicine, University of California, San Francisco 94143-0448, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (FFH)A, B, C425Thermus aquaticusMutation(s): 0 
Gene Names: ffh
UniProt
Find proteins for O07347 (Thermus aquaticus)
Explore O07347 
Go to UniProtKB:  O07347
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CD
Query on CD

Download Ideal Coordinates CCD File 
D [auth A] , E [auth A] , F [auth A] , G [auth A] , H [auth A] , J [auth B] , K [auth B] , L [auth B] , 
D [auth A],  E [auth A],  F [auth A],  G [auth A],  H [auth A],  J [auth B],  K [auth B],  L [auth B],  M [auth B],  O [auth C],  P [auth C],  Q [auth C],  R [auth C],  S [auth C],  T [auth C],  U [auth C]
CADMIUM ION
Cd
WLZRMCYVCSSEQC-UHFFFAOYSA-N
 Ligand Interaction
SO4
Query on SO4

Download Ideal Coordinates CCD File 
I [auth A], N [auth B], V [auth C]SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.20 Å
  • R-Value Free: 0.296 
  • R-Value Work: 0.257 
  • Space Group: H 3 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 195.05α = 90
b = 195.05β = 90
c = 335.72γ = 120
Software Package:
Software NamePurpose
CCP4model building
RAVEmodel building
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling
CCP4phasing
RAVEphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-07-16
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance