2gku
From Proteopedia
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| Ligands: | , , | ||||||
| Related: | 143D, 186D, 1K8P, 2AQY
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| Resources: | FirstGlance, OCA, PDBsum, RCSB | ||||||
| Coordinates: | save as pdb, mmCIF, xml | ||||||
Monomeric human telomere DNA tetraplex with 3+1 strand fold topology, two edgewise loops and double-chain reversal loop, NMR, 12 structures
Overview
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.
About this Structure
2GKU is a Protein complex structure of sequences from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Structure of the human telomere in K+ solution: an intramolecular (3 + 1) G-quadruplex scaffold., Luu KN, Phan AT, Kuryavyi V, Lacroix L, Patel DJ, J Am Chem Soc. 2006 Aug 2;128(30):9963-70. PMID:16866556
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