3CE5 image
Deposition Date 2008-02-28
Release Date 2008-05-13
Last Version Date 2023-08-30
Entry Detail
PDB ID:
3CE5
Keywords:
DNA
Title:
A bimolecular parallel-stranded human telomeric quadruplex in complex with a 3,6,9-trisubstituted acridine molecule BRACO19
Biological Source:
Source Organism:
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.50 Å
R-Value Free:
0.21
R-Value Work:
0.18
R-Value Observed:
0.18
Space Group:
I 4
3CE5 validation report
Macromolecular Entities
Polymer Type:polydeoxyribonucleotide
Molecule:DNA (5'-D(*DTP*DAP*DGP*DGP*DGP*DTP*DTP*DAP*DGP*DGP*DGP*DT)-3')
Chain IDs:A, B
Chain Length:12
Number of Molecules:2
Biological Source:
Ligand Molecules
BRA
K
Primary Citation
Structural basis of DNA quadruplex recognition by an acridine drug.
J.Am.Chem.Soc. 130 6722 6724 (2008)
PMID: 18457389 DOI: 10.1021/ja8016973

Abstact

The crystal structure of a complex between the bimolecular human telomeric quadruplex d(TAGGGTTAGGGT)2 and the experimental anticancer drug BRACO-19, has been determined, to 2.5 A resolution. The binding site for the BRACO-19 molecule is at the interface of two parallel-folded quadruplexes, sandwiched between a G-tetrad surface and a TATA tetrad, and held in the site by networks of water molecules. The structure rationalizes the existing structure-activity data and provides a starting-point for the structure-based design of quadruplex-binding ligands

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Protein

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Disease

Primary Citation of related structures
1K8P