5OV2

2'F-ANA-G modified quadruplex with a flipped tetrad


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 10 
  • Conformers Submitted: 10 
  • Selection Criteria: all calculated structures submitted 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Nonconventional C-HF Hydrogen Bonds Support a Tetrad Flip in Modified G-Quadruplexes.

Dickerhoff, J.Weisz, K.

(2017) J Phys Chem Lett 8: 5148-5152

  • DOI: 10.1021/acs.jpclett.7b02428

  • PubMed Abstract: 
  • A G-quadruplex adopting a (3 + 1)-hybrid structure was substituted at its 5'-tetrad by 2'-deoxy-2'-fluoro-arabinoguanosine (FaraG) analogs. Incorporation of anti-favoring FaraG at syn-positions of the 5'-outer tetrad induced a reversal of the tetrad ...

    A G-quadruplex adopting a (3 + 1)-hybrid structure was substituted at its 5'-tetrad by 2'-deoxy-2'-fluoro-arabinoguanosine (FaraG) analogs. Incorporation of anti-favoring FaraG at syn-positions of the 5'-outer tetrad induced a reversal of the tetrad polarity without noticeably compromising the quadruplex stability. This conformational change is shown to be promoted by nonconventional C-H···F hydrogen bonds acting within the anti-FaraG residues.


    Organizational Affiliation

    Institute of Biochemistry, Ernst-Moritz-Arndt University Greifswald , Felix-Hausdorff-Str. 4, D-17487 Greifswald, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsLengthOrganism
artificial quadruplex with propeller, diagonal, and lateral loopX22synthetic construct
Small Molecules
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
GFL
Query on GFL
X
DNA LINKINGC10 H13 F N5 O7 PDG
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 10 
  • Conformers Submitted: 10 
  • Selection Criteria: all calculated structures submitted 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2017-10-18
    Type: Initial release
  • Version 1.1: 2017-11-01
    Type: Database references