2GKU

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

• PDB DOI: https://doi.org/10.2210/pdb2GKU/pdb
• NAKB: 2GKU

• Classification: DNA
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2006-04-03 Released: 2006-08-15 
• Deposition Author(s): Luu, K.N., Phan, A.T., Kuryavyi, V.V., Lacroix, L., Patel, D.J.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 50 
• Conformers Submitted: 12 
• Selection Criteria: back calculated data agree with experimental NOESY spectrum 

Literature

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.

(2006) J Am Chem Soc 128: 9963-9970

• PubMed: 16866556 
• DOI: https://doi.org/10.1021/ja062791w
• Primary Citation of Related Structures:  
  2GKU


• PubMed Abstract: 
  

  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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Organizational Affiliation: 

Structural Biology Program, Memorial Sloan-Kettering Cancer Center, New York, New York 10021, USA.

Biological Assembly 1  

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 7.59 kDa 
• Atom Count: 505 
• Modelled Residue Count: 24 
• Deposited Residue Count: 24 
• Unique nucleic acid chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Length	Organism	Image
Human telomere DNA	A	24	Homo sapiens

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 50 
• Conformers Submitted: 12 
• Selection Criteria: back calculated data agree with experimental NOESY spectrum 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2006-08-15 
Deposition Author(s): Luu, K.N., Phan, A.T., Kuryavyi, V.V., Lacroix, L., Patel, D.J.

Revision History  

• Version 1.0: 2006-08-15
  Type: Initial release
  
• Version 1.1: 2008-05-01
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2022-03-09
  Changes: Data collection, Database references, Derived calculations