281D image
Deposition Date 1996-08-23
Release Date 1996-09-16
Last Version Date 2024-02-14
Entry Detail
PDB ID:
281D
Keywords:
DNA
Title:
CRYSTAL STRUCTURE OF THE A-DNA OCTAMER D(GGCATGCC)
Biological Source:
Source Organism:
(Taxon ID: ) (Taxon ID: )
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.38 Å
R-Value Work:
0.17
R-Value Observed:
0.17
Space Group:
P 61
281D validation report
Macromolecular Entities
Polymer Type:polydeoxyribonucleotide
Molecule:DNA (5'-D(*GP*GP*CP*AP*TP*GP*CP*C)-3')
Chain IDs:A, B
Chain Length:8
Number of Molecules:2
Biological Source:
Primary Citation
Structure of the A-DNA octamer d(GGCATGCC).
Acta Crystallogr.,Sect.D 53 269 273 (1997)
PMID: 15299929 DOI: 10.1107/S0907444996014795

Abstact

The crystal structure of the self-complementary DNA octamer d(GGCATGCC) has been determined to a resolution of 2.38 A and R factor of 17.1%. The structure is an A-DNA octamer duplex with Watson-Crick base pairing along its length. This sequence extends the investigation of octamer duplexes of the type d(GGX(4)CC) which assume P6(1) packing within the crystallographic unit cell. The A-DNA duplex is non-linear with a helix axis curvature of 7 degrees and bending towards the DNA minor groove. In view of the biological importance of protein recognition of some A-DNA sequences the minor-groove geometry and helix-axis curvature for this structure is compared with all others of the type d(GGXATXCC).

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Primary Citation of related structures
281D