6M6K image
Deposition Date 2020-03-15
Release Date 2020-07-29
Last Version Date 2024-05-01
Entry Detail
PDB ID:
6M6K
Keywords:
DNA
Title:
NMR solution structure of a DNA minidumbbell containing an abasic bulge between two CCTG repeats
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Method Details:
Experimental Method:
SOLUTION NMR
Conformers Calculated:
500
Conformers Submitted:
20
Selection Criteria:
structures with the lowest energy
6M6K validation report
Macromolecular Entities
Polymer Type:polydeoxyribonucleotide
Molecule:DNA (5'-D(*CP*TP*TP*GP*(3DR)P*CP*TP*TP*G)-3')
Chain IDs:A
Chain Length:9
Number of Molecules:1
Biological Source:Homo sapiens
Ligand Molecules
NA
Primary Citation
Rational design of a reversible Mg2+/EDTA-controlled molecular switch based on a DNA minidumbbell.
Chem.Commun.(Camb.) 56 10127 10130 (2020)
PMID: 32870195 DOI: 10.1039/d0cc03774e

Abstact

Here we report that incorporation of an abasic site to DNA minidumbbells formed by natural sequences can lead to significant enhancements in their thermodynamic stability. Based on these stable minidumbbells, the first metal ion-controlled molecular switch which can regulate instant and reversible DNA duplex formation and dissociation has been constructed.

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Primary Citation of related structures
6M6K