ISDA

Deposition Date 2006-04-03

Release Date 2006-08-15

Last Version Date 2024-05-29

Entry Detail

PDB ID:

2GKU

Keywords:

DNA

Title:

Monomeric human telomere DNA tetraplex with 3+1 strand fold topology, two edgewise loops and double-chain reversal loop, NMR, 12 structures

Biological Source:

Source Organism:

Homo sapiens (Taxon ID: 9606)

Host Organism:

Escherichia coli

Method Details:

Experimental Method:

SOLUTION NMR

Conformers Calculated:

Conformers Submitted:

Selection Criteria:

back calculated data agree with experimental NOESY spectrum

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Macromolecular Entities

Polymer Type:polydeoxyribonucleotide
Molecule:Human telomere DNA
Chain IDs:A
Chain Length:24
Number of Molecules:1
Biological Source:Homo sapiens

Ligand Molecules

Primary Citation

Structure of the human telomere in k(+) solution: an intramolecular (3 + 1) g-quadruplex scaffold.

Luu, K.N, Phan, A.T, Kuryavyi, V.V, Lacroix, L, Patel, D.J.Show

J.Am.Chem.Soc. 128 9963 9970 (2006)

PMID: 16866556 DOI: 10.1021/ja062791w

Abstact

We present the intramolecular G-quadruplex structure of human telomeric DNA in physiologically relevant K(+) solution. This G-quadruplex, whose (3 + 1) topology differs from folds reported previously in Na(+) solution and in a K(+)-containing crystal, involves the following: one anti.syn.syn.syn and two syn.anti.anti.anti G-tetrads; one double-chain reversal and two edgewise loops; three G-tracts oriented in one direction and the fourth in the opposite direction. The topological characteristics of this (3 + 1) G-quadruplex scaffold should provide a unique platform for structure-based anticancer drug design targeted to human telomeric DNA.

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Primary Citation of related structures