6IUE image
Deposition Date 2018-11-28
Release Date 2019-10-16
Last Version Date 2024-03-27
Entry Detail
PDB ID:
6IUE
Keywords:
DNA
Title:
DNA helical wire containing Hg(II)
Biological Source:
Source Organism:
synthetic construct (Taxon ID: 32630)
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.90 Å
R-Value Free:
0.34
R-Value Work:
0.29
R-Value Observed:
0.29
Space Group:
P 1 21 1
6IUE validation report
Macromolecular Entities
Polymer Type:polydeoxyribonucleotide
Molecule:DNA (5'-D(*TP*TP*TP*GP*C)-3')
Chain IDs:A, B (auth: M), C (auth: B), D (auth: N), E (auth: C), F (auth: O), G (auth: D), H (auth: P), I (auth: E), J (auth: Q), K (auth: F), L (auth: R), M (auth: G), N (auth: T), O (auth: H), P (auth: U), Q (auth: I), R (auth: V), S (auth: J), T (auth: W), U (auth: K), V (auth: X), W (auth: L), X (auth: Y)
Chain Length:5
Number of Molecules:24
Biological Source:synthetic construct
Ligand Molecules
HG
Primary Citation
A Novel DNA Helical Wire Containing HgII-Mediated T:T and T:G Pairs.
Angew.Chem.Int.Ed.Engl. 58 16835 16838 (2019)
PMID: 31507027 DOI: 10.1002/anie.201910029

Abstact

Numerous applications of metal-mediated base pairs (metallo-base-pairs) to nucleic acid based nanodevices and genetic code expansion have been extensively studied. Many of these metallo-base-pairs are formed in DNA and RNA duplexes containing Watson-Crick base pairs. Recently, a crystal structure of a metal-DNA nanowire with an uninterrupted one-dimensional silver array was reported. We now report the crystal structure of a novel DNA helical wire containing HgII -mediated T:T and T:G base pairs and water-mediated C:C base pairs. The Hg-DNA wire does not contain any Watson-Crick base pairs. Crystals of the Hg-DNA wire, which is the first DNA wire structure driven by HgII ions, were obtained by mixing the short oligonucleotide d(TTTGC) and HgII ions. This study demonstrates the potential of metallo-DNA to form various structural components that can be used for functional nanodevices.

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Primary Citation of related structures
6IUE