1D59

CRYSTAL STRUCTURE OF 4-STRANDED OXYTRICHA TELOMERIC DNA


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Work: 0.195 
  • R-Value Observed: 0.195 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Crystal structure of four-stranded Oxytricha telomeric DNA.

Kang, C.Zhang, X.Ratliff, R.Moyzis, R.Rich, A.

(1992) Nature 356: 126-131

  • DOI: 10.1038/356126a0
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • The sequence d(GGGGTTTTGGGG) from the 3' overhang of the Oxytricha telomere has been crystallized and its three-dimensional structure solved to 2.5 A resolution. The oligonucleotide forms hairpins, two of which join to make a four-stranded helical st ...

    The sequence d(GGGGTTTTGGGG) from the 3' overhang of the Oxytricha telomere has been crystallized and its three-dimensional structure solved to 2.5 A resolution. The oligonucleotide forms hairpins, two of which join to make a four-stranded helical structure with the loops containing four thymine residues at either end. The guanine residues are held together by cyclic hydrogen bonding and an ion is located in the centre. The four guanine residues in each segment have a glycosyl conformation that alternates between anti and syn. There are two four-stranded molecules in the asymmetric unit showing that the structure has some intrinsic flexibility.


    Organizational Affiliation

    MIT, Cambridge



Macromolecules
  • Find similar nucleic acids by: Sequence   |   Structure
Entity ID: 1
MoleculeChainsLengthOrganism
DNA (5'-D(*GP*GP*GP*GP*TP*TP*TP*TP*GP*GP*GP*G)-3')A, B,C,D12N/A
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.30 Å
  • R-Value Work: 0.195 
  • R-Value Observed: 0.195 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 27.73α = 90
b = 49.57β = 90
c = 97.27γ = 90
Software Package:
Software NamePurpose
X-PLORrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1993-04-15
    Type: Initial release
  • Version 1.1: 2008-05-22
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance