3QHS

Crystal structure of full-length Hfq from Escherichia coli


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.85 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.207 

wwPDB Validation 3D Report Full Report


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Literature

Structural analysis of full-length Hfq from Escherichia coli

Beich-Frandsen, M.Vecerek, B.Sjoblom, B.Blasi, U.Djinovic-Carugo, K.

(2011) Acta Crystallogr.,Sect.F 67: 536-540

  • DOI: 10.1107/S174430911100786X

  • PubMed Abstract: 
  • The structure of full-length host factor Qβ (Hfq) from Escherichia coli obtained from a crystal belonging to space group P1, with unit-cell parameters a = 61.91, b = 62.15, c = 81.26 Å, α = 78.6, β = 86.2, γ = 59.9°, was solved by molecular replaceme ...

    The structure of full-length host factor Qβ (Hfq) from Escherichia coli obtained from a crystal belonging to space group P1, with unit-cell parameters a = 61.91, b = 62.15, c = 81.26 Å, α = 78.6, β = 86.2, γ = 59.9°, was solved by molecular replacement to a resolution of 2.85 Å and refined to R(work) and R(free) values of 20.7% and 25.0%, respectively. Hfq from E. coli has previously been crystallized and the structure has been solved for the N-terminal 72 amino acids, which cover ~65% of the full-length sequence. Here, the purification, crystallization and structural data of the full 102-amino-acid protein are presented. These data revealed that the presence of the C-terminus changes the crystal packing of E. coli Hfq. The crystal structure is discussed in the context of the recently published solution structure of Hfq from E. coli.


    Organizational Affiliation

    Department of Structural and Computational Biology, Max F. Perutz Laboratories, University of Vienna, Campus Vienna Biocenter 5, A-1030 Vienna, Austria.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Protein hfq
A, B, C, D, E, F, G, H, I, J, K, L
102Escherichia coli (strain K12)Mutation(s): 0 
Gene Names: hfq
Find proteins for P0A6X3 (Escherichia coli (strain K12))
Go to UniProtKB:  P0A6X3
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.85 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.207 
  • Space Group: P 1
Unit Cell:
Length (Å)Angle (°)
a = 61.910α = 78.56
b = 62.150β = 86.16
c = 81.260γ = 59.86
Software Package:
Software NamePurpose
MOLREPphasing
XDSdata scaling
DNAdata collection
REFMACrefinement
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-05-18
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance