2LOD image
Deposition Date 2012-01-23
Release Date 2012-05-30
Last Version Date 2024-05-01
Entry Detail
PDB ID:
2LOD
Keywords:
DNA
Title:
Solution-state structure of an intramolecular G-quadruplex with propeller, diagonal and edgewise loops
Biological Source:
Source Organism:
Method Details:
Experimental Method:
SOLUTION NMR
Conformers Calculated:
50
Conformers Submitted:
10
Selection Criteria:
structures with the least restraint violations
2LOD validation report
Macromolecular Entities
Polymer Type:polydeoxyribonucleotide
Molecule:DNA (5'-D(*GP*GP*GP*AP*TP*GP*GP*GP*AP*CP*AP*CP*AP*GP*GP*GP*GP*AP*CP*GP*GP*G)-3')
Chain IDs:A
Chain Length:22
Number of Molecules:1
Biological Source:
Ligand Molecules
NA
Primary Citation
Solution-state structure of an intramolecular G-quadruplex with propeller, diagonal and edgewise loops.
Nucleic Acids Res. 40 6946 6956 (2012)
PMID: 22532609 DOI: 10.1093/nar/gks329

Abstact

We herein report on the formation and high-resolution NMR solution-state structure determination of a G-quadruplex adopted by d[G(3)ATG(3)ACACAG(4)ACG(3)] comprised of four G-tracts with the third one consisting of four guanines that are intervened with non-G streches of different lengths. A single intramolecular antiparallel (3+1) G-quadruplex exhibits three stacked G-quartets connected with propeller, diagonal and edgewise loops of different lengths. The propeller and edgewise loops are well structured, whereas the longer diagonal loop is more flexible. To the best of our knowledge, this is the first high-resolution G-quadruplex structure where all of the three main loop types are present.

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Primary Citation of related structures
2LOD
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