ISDA: 8DRH

Deposition Date 1997-10-13

Release Date 1998-05-27

Last Version Date 2024-05-22

Entry Detail

PDB ID:

8DRH

Keywords:

DNA-RNA HYBRID

Title:

HIGH RESOLUTION NMR STRUCTURE OF THE D(GCGTCAGG)R(CCUGACGC) HYBRID, MINIMIZED AVERAGE STRUCTURE

Biological Source:

Source Organism:

Method Details:

Experimental Method:

SOLUTION NMR

Conformers Calculated:

Conformers Submitted:

Selection Criteria:

AVERAGE OF ALL STRUCTURES

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Macromolecular Entities

Polymer Type:polydeoxyribonucleotide
Molecule:DNA (5'-D(*GP*CP*GP*TP*CP*AP*GP*G)-3')
Chain IDs:A
Chain Length:8
Number of Molecules:1
Biological Source:

Polymer Type:polyribonucleotide
Molecule:RNA (5'-R(*CP*CP*UP*GP*AP*CP*GP*C)-3')
Chain IDs:B
Chain Length:8
Number of Molecules:1
Biological Source:

Ligand Molecules

Primary Citation

Structure of a Stereoregular Phosphorothioate DNA/RNA Duplex

Bachelin, M, Hessler, G, Kurz, G, Hacia, J.G, Dervan, P.B, Kessler, H, Bachelin, M, Kurz, G.Show

Nat.Struct.Biol. 5 271 276 (1998)

PMID: 9546216 DOI: 10.1038/nsb0498-271

Abstact

In this work, we present the first NMR solution structure of a DNA/RNA hybrid containing stereoregular Rp-phosphorothioate modifications of all DNA backbone linkages. The complex of the enzymatically synthesized phosphorothioate DNA octamer (all-Rp)-d(GCGTCAGG) and its complementary RNA r(CCUGACGC) was found to adopt an overall conformation within the A-form family. Most helical parameters and the sugar puckers of the DNA strand assume values intermediate between A- and B-form. The close structural similarity with the unmodified DNA/RNA hybrid of the same sequence may explain why both the natural and the sulfur-substituted complex can be recognized and digested by ribonuclease H.

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Primary Citation of related structures