1DC0

CRYSTAL STRUCTURE OF AN A/B-DNA INTERMEDIATE CATGGGCCCATG


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.3 Å
  • R-Value Free: 0.190 
  • R-Value Work: 0.168 

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.USA 97: 2035-2039

  • DOI: 10.1073/pnas.040571197

  • 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 proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsLengthOrganism
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: 1.3 Å
  • R-Value Free: 0.190 
  • R-Value Work: 0.168 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 40.197α = 90.00
b = 40.197β = 90.00
c = 77.336γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
DENZOdata reduction
DMphasing
SHELXL-97refinement
DMmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

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