2N9Q

Photoswitchable G-quadruplex


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • 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

Photoresponsive Formation of an Intermolecular Minimal G-Quadruplex Motif.

Thevarpadam, J.Bessi, I.Binas, O.Goncalves, D.P.Slavov, C.Jonker, H.R.Richter, C.Wachtveitl, J.Schwalbe, H.Heckel, A.

(2016) Angew.Chem.Int.Ed.Engl. 55: 2738-2742

  • DOI: 10.1002/anie.201510269

  • PubMed Abstract: 
  • The ability of three different bifunctional azobenzene linkers to enable the photoreversible formation of a defined intermolecular two-tetrad G-quadruplex upon UV/Vis irradiation was investigated. Circular dichroism and NMR spectroscopic data showed ...

    The ability of three different bifunctional azobenzene linkers to enable the photoreversible formation of a defined intermolecular two-tetrad G-quadruplex upon UV/Vis irradiation was investigated. Circular dichroism and NMR spectroscopic data showed the formation of G-quadruplexes with K(+)  ions at room temperature in all three cases with the corresponding azobenzene linker in an E conformation. However, only the para-para-substituted azobenzene derivative enables photoswitching between a nonpolymorphic, stacked, tetramolecular G-quadruplex and an unstructured state after E-Z isomerization.


    Organizational Affiliation

    Goethe University Frankfurt, Institute for Organic Chemistry and Chemical Biology, Buchmann Institute for Molecular Life Sciences, Max-von-Laue-Strasse 9, 60438, Frankfurt, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsLengthOrganism
DNA (5'-D(*GP*GP*(AZW)P*GP*G)-3')A,B,C,D5N/A
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
K
Query on K

Download SDF File 
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A, C
POTASSIUM ION
K
NPYPAHLBTDXSSS-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
AZW
Query on AZW
A, B, C, D
NON-POLYMERC14 H15 N2 O5 P

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Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 200 
  • Conformers Submitted: 20 
  • 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: 2016-02-17
    Type: Initial release
  • Version 1.1: 2016-03-02
    Type: Database references