4IJJ

Structure of transcription factor DksA2 from Pseudomonas aeruginosa


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.25 Å
  • R-Value Free: 0.310 
  • R-Value Work: 0.257 
  • R-Value Observed: 0.259 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

DksA2, a zinc-independent structural analog of the transcription factor DksA.

Furman, R.Biswas, T.Danhart, E.M.Foster, M.P.Tsodikov, O.V.Artsimovitch, I.

(2013) FEBS Lett 587: 614-619

  • DOI: 10.1016/j.febslet.2013.01.073
  • Primary Citation of Related Structures:  
    4IJJ

  • PubMed Abstract: 
  • Transcription factor DksA contains a four-Cys Zn(2 +)-finger motif thought to be responsible for structural integrity and the relative disposition of its domains. Pseudomonas aeruginosa encodes an additional DksA paralog (DksA2) that is expressed selectively under Zn(2+) limitation ...

    Transcription factor DksA contains a four-Cys Zn(2 +)-finger motif thought to be responsible for structural integrity and the relative disposition of its domains. Pseudomonas aeruginosa encodes an additional DksA paralog (DksA2) that is expressed selectively under Zn(2+) limitation. Although DksA2 does not bind Zn(2+), it complements the Escherichia coli dksA deletion and has similar effects on transcription in vitro. In this study, structural and biochemical analyses reveal that DksA2 has a similar fold, domain structure and RNA polymerase binding properties to those of the E. coli DksA despite the lack of the stabilizing metal ion.


    Organizational Affiliation

    Department of Microbiology, The Ohio State University, Columbus, OH, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Putative C4-type zinc finger protein, DksA/TraR familyA, B, C136Pseudomonas aeruginosa UCBPP-PA14Mutation(s): 0 
Gene Names: PA14_73020dksA
UniProt
Find proteins for A0A0H2ZJP8 (Pseudomonas aeruginosa (strain UCBPP-PA14))
Explore A0A0H2ZJP8 
Go to UniProtKB:  A0A0H2ZJP8
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

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

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.25 Å
  • R-Value Free: 0.310 
  • R-Value Work: 0.257 
  • R-Value Observed: 0.259 
  • Space Group: P 6 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 169.453α = 90
b = 169.453β = 90
c = 92.32γ = 120
Software Package:
Software NamePurpose
HKL-2000data collection
PHASERphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report




Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2013-02-27
    Type: Initial release
  • Version 1.1: 2013-03-27
    Changes: Database references