1BL0

MULTIPLE ANTIBIOTIC RESISTANCE PROTEIN (MARA)/DNA COMPLEX


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.303 
  • R-Value Work: 0.225 
  • R-Value Observed: 0.225 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

A novel DNA-binding motif in MarA: the first structure for an AraC family transcriptional activator.

Rhee, S.Martin, R.G.Rosner, J.L.Davies, D.R.

(1998) Proc Natl Acad Sci U S A 95: 10413-10418

  • DOI: 10.1073/pnas.95.18.10413
  • Primary Citation of Related Structures:  
    1BL0

  • PubMed Abstract: 
  • A crystal structure for a member of the AraC prokaryotic transcriptional activator family, MarA, in complex with its cognate DNA-binding site is described. MarA consists of two similar subdomains, each containing a helix-turn-helix DNA-binding motif. The two recognition helices of the motifs are inserted into adjacent major groove segments on the same face of the DNA but are separated by only 27 A thereby bending the DNA by approximately 35 degrees ...

    A crystal structure for a member of the AraC prokaryotic transcriptional activator family, MarA, in complex with its cognate DNA-binding site is described. MarA consists of two similar subdomains, each containing a helix-turn-helix DNA-binding motif. The two recognition helices of the motifs are inserted into adjacent major groove segments on the same face of the DNA but are separated by only 27 A thereby bending the DNA by approximately 35 degrees. Extensive interactions between the recognition helices and the DNA major groove provide the sequence specificity.


    Organizational Affiliation

    Laboratory of Molecular Biology, National Institutes of Diabetes, Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892-0560, USA.



Macromolecules

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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
PROTEIN (MULTIPLE ANTIBIOTIC RESISTANCE PROTEIN)C [auth A]129Escherichia coliMutation(s): 0 
Gene Names: marA
UniProt
Find proteins for P0ACH5 (Escherichia coli (strain K12))
Explore P0ACH5 
Go to UniProtKB:  P0ACH5
Protein Feature View
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  • Reference Sequence
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Entity ID: 1
MoleculeChainsLengthOrganismImage
DNA (5'-D(*GP*GP*GP*GP*AP*TP*TP*TP*AP*GP*CP*AP*AP*AP*AP*CP*GP*TP*GP*GP*CP*AP* TP*C)-3')A [auth B]24N/A
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsLengthOrganismImage
DNA (5'-D(*CP*CP*GP*AP*TP*GP*CP*CP*AP*CP*GP*TP*TP*TP*TP*GP*CP*TP*AP*AP*AP*TP* CP*C)-3')B [auth C]24N/A
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Free: 0.303 
  • R-Value Work: 0.225 
  • R-Value Observed: 0.225 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 47.1α = 90
b = 47.1β = 90
c = 298.2γ = 90
Software Package:
Software NamePurpose
MLPHAREphasing
X-PLORrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1998-09-02
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance