1DC0

CRYSTAL STRUCTURE OF AN A/B-DNA INTERMEDIATE CATGGGCCCATG


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.30 Å
  • R-Value Free: 0.190 
  • R-Value Work: 0.168 
  • R-Value Observed: 0.172 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

The structure of a stable intermediate in the A ;-> B DNA helix transition

Ng, H.L.Kopka, M.L.Dickerson, R.E.

(2000) Proc Natl Acad Sci U S A 97: 2035-2039

  • DOI: 10.1073/pnas.040571197
  • Primary Citation of Related Structures:  
    1DC0

  • PubMed Abstract: 
  • The DNA dodecamer CATGGGCCCATG in a crystal structure of resolution 1.3 A has a conformation intermediate between A and B DNA. This trapping of a stable intermediate suggests that the A and B DNA families are not discrete, as previously believed. The ...

    The DNA dodecamer CATGGGCCCATG in a crystal structure of resolution 1.3 A has a conformation intermediate between A and B DNA. This trapping of a stable intermediate suggests that the A and B DNA families are not discrete, as previously believed. The structure supports a base-centered rather than a backbone-centered mechanism for the A <--> B transition mediated by guanine tracts. Interconversion between A and B DNA provides another means for regulating protein-DNA recognition.


    Organizational Affiliation

    Molecular Biology Institute, University of California, Los Angeles, CA 90095-1570, USA.



Macromolecules
  • Find similar nucleic acids by:  Sequence   |   Structure
  • Entity ID: 1
    MoleculeChainsLengthOrganismImage
    DNA (5'-D(*CP*AP*TP*GP*GP*GP*CP*CP*CP*AP*TP*G)-3')A, B12N/A
    Experimental Data & Validation

    Experimental Data

    • Method: X-RAY DIFFRACTION
    • Resolution: 1.30 Å
    • R-Value Free: 0.190 
    • R-Value Work: 0.168 
    • R-Value Observed: 0.172 
    • Space Group: P 41 21 2
    Unit Cell:
    Length ( Å )Angle ( ˚ )
    a = 40.197α = 90
    b = 40.197β = 90
    c = 77.336γ = 90
    Software Package:
    Software NamePurpose
    DMmodel building
    SHELXL-97refinement
    DENZOdata reduction
    SCALEPACKdata scaling
    DMphasing

    Structure Validation

    View Full Validation Report



    Entry History 

    Deposition Data

    Revision History 

    • Version 1.0: 2000-03-06
      Type: Initial release
    • Version 1.1: 2008-04-27
      Changes: Version format compliance
    • Version 1.2: 2011-07-13
      Changes: Version format compliance
    • Version 1.3: 2017-02-01
      Changes: Structure summary