2JSQ

Monomeric Human Telomere DNA Tetraplex with 3+1 Strand Fold Topology, Two Edgewise Loops and Double-Chain Reversal Loop, Form 2 15BrG, NMR, 10 Structures


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structure of two intramolecular G-quadruplexes formed by natural human telomere sequences in K+ solution.

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

(2007) Nucleic Acids Res. 35: 6517-6525

  • DOI: 10.1093/nar/gkm706
  • Primary Citation of Related Structures:  2JSK, 2JSL, 2JSM

  • PubMed Abstract: 
  • Intramolecular G-quadruplexes formed by human telomere sequences are attractive anticancer targets. Recently, four-repeat human telomere sequences have been shown to form two different intramolecular (3 + 1) G-quadruplexes in K(+) solution (Form 1 an ...

    Intramolecular G-quadruplexes formed by human telomere sequences are attractive anticancer targets. Recently, four-repeat human telomere sequences have been shown to form two different intramolecular (3 + 1) G-quadruplexes in K(+) solution (Form 1 and Form 2). Here we report on the solution structures of both Form 1 and Form 2 adopted by natural human telomere sequences. Both structures contain the (3 + 1) G-tetrad core with one double-chain-reversal and two edgewise loops, but differ in the successive order of loop arrangements within the G-quadruplex scaffold. Our results provide the structural details at the two ends of the G-tetrad core in the context of natural sequences and information on different loop conformations. This structural information might be important for our understanding of telomere G-quadruplex structures and for anticancer drug design targeted to such scaffolds.


    Organizational Affiliation

    Structural Biology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10021, USA. phantuan@ntu.edu.sg




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsLengthOrganism
HUMAN TELOMERE DNAA25N/A
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
BGM
Query on BGM
A
DNA LINKINGC10 H13 Br N5 O7 PDG
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 50 
  • Conformers Submitted: 10 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-07-15
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance