272D

PARALLEL AND ANTIPARALLEL (G.GC)2 TRIPLE HELIX FRAGMENTS IN A CRYSTAL STRUCTURE

PDB DOI: https://doi.org/10.2210/pdb272D/pdb
NAKB: 272D

Classification: DNA
Mutation(s): No

Deposited: 1996-07-09 Released: 1996-09-20
Deposition Author(s): Vlieghe, D., Van Meervelt, L., Dautant, A., Gallois, B., Precigoux, G., Kennard, O.

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 2.00 Å
R-Value Observed: 0.209

wwPDB Validation 3D Report Full Report

This is version 1.3 of the entry. See complete history.

Literature

Parallel and antiparallel (G.GC)2 triple helix fragments in a crystal structure.

Vlieghe, D., Van Meervelt, L., Dautant, A., Gallois, B., Precigoux, G., Kennard, O.

(1996) Science 273: 1702-1705

PubMed: 8781231 Search on PubMed
DOI: https://doi.org/10.1126/science.273.5282.1702
Primary Citation of Related Structures:
272D

PubMed Abstract:
Nucleic acid triplexes are formed by sequence-specific interactions between single-stranded polynucleotides and the double helix. These triplexes are implicated in genetic recombination in vivo and have application to areas that include genome analysis and antigene therapy. Despite the importance of the triple helix, only limited high-resolution structural information is available. The x-ray crystal structure of the oligonucleotide d(GGCCAATTGG) is described; it was designed to contain the d(G middle dotGC)2 fragment and thus provide the basic repeat unit of a DNA triple helix. Parameters derived from this crystal structure have made it possible to construct models of both parallel and antiparallel triple helices.

Organizational Affiliation

Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F, B-3001 Heverlee, Belgium. Structurale, EP CNRS, Université de Bordeaux.