1I1G

CRYSTAL STRUCTURE OF THE LRP-LIKE TRANSCRIPTIONAL REGULATOR FROM THE ARCHAEON PYROCOCCUS FURIOSUS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.382 
  • R-Value Work: 0.313 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of the Lrp-like transcriptional regulator from the archaeon Pyrococcus furiosus.

Leonard, P.M.Smits, S.H.Sedelnikova, S.E.Brinkman, A.B.de Vos, W.M.van der Oost, J.Rice, D.W.Rafferty, J.B.

(2001) EMBO J. 20: 990-997

  • DOI: 10.1093/emboj/20.5.990

  • PubMed Abstract: 
  • The LrpA protein from the hyperthermophilic archaeon Pyrococcus furiosus belongs to the Lrp/AsnC family of transcriptional regulatory proteins, of which the Escherichia coli leucine-responsive regulatory protein is the archetype. Its crystal structur ...

    The LrpA protein from the hyperthermophilic archaeon Pyrococcus furiosus belongs to the Lrp/AsnC family of transcriptional regulatory proteins, of which the Escherichia coli leucine-responsive regulatory protein is the archetype. Its crystal structure has been determined at 2.9 A resolution and is the first for a member of the Lrp/AsnC family, as well as one of the first for a transcriptional regulator from a hyperthermophile. The structure consists of an N-terminal domain containing a helix-turn-helix (HtH) DNA-binding motif, and a C-terminal domain of mixed alpha/beta character reminiscent of a number of RNA- and DNA-binding domains. Pyrococcus furiosus LrpA forms a homodimer mainly through interactions between the antiparallel beta-sheets of the C-terminal domain, and further interactions lead to octamer formation. The LrpA structure suggests how the protein might bind and possibly distort its DNA substrate through use of its HtH motifs and control gene expression. A possible location for an effector binding site is proposed by using sequence comparisons with other members of the family coupled to mutational analysis.


    Organizational Affiliation

    Krebs Institute for Biomolecular Research, Department of Molecular Biology and Biotechnology, University of Sheffield, Western Bank, Sheffield S10 2TN, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TRANSCRIPTIONAL REGULATOR LRPA
A, B
141Pyrococcus furiosus (strain ATCC 43587 / DSM 3638 / JCM 8422 / Vc1)Gene Names: lrpA
Find proteins for P42180 (Pyrococcus furiosus (strain ATCC 43587 / DSM 3638 / JCM 8422 / Vc1))
Go to UniProtKB:  P42180
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.382 
  • R-Value Work: 0.313 
  • Space Group: I 41 2 2
Unit Cell:
Length (Å)Angle (°)
a = 101.318α = 90.00
b = 101.318β = 90.00
c = 245.361γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
SCALEPACKdata scaling
DENZOdata reduction
MLPHAREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-02-06
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance