211D image
Deposition Date 1995-06-13
Release Date 1996-03-22
Last Version Date 2024-02-14
Entry Detail
PDB ID:
211D
Keywords:
DNA
Title:
THE CRYSTAL AND MOLECULAR STRUCTURE OF A NEW Z-DNA CRYSTAL FORM: D[CGT(2-NH2-A) CG] AND ITS PLATINATED DERIVATIVE
Biological Source:
Source Organism:
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.60 Å
R-Value Work:
0.17
R-Value Observed:
0.17
Space Group:
P 32 2 1
211D validation report
Macromolecular Entities
Polymer Type:polydeoxyribonucleotide
Molecule:DNA (5'-D(*CP*GP*TP*(1AP)P*CP*(PT(NH3)3)G)-3')
Chain IDs:A
Chain Length:6
Number of Molecules:1
Biological Source:
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
1AP A DA 2,6-DIAMINOPURINE NUCLEOTIDE
Ligand Molecules
PTN
SPM
Primary Citation
Crystal and molecular structure of a new Z-DNA crystal form: d[CGT(2-NH2-A)CG] and its platinated derivative.
Biochemistry 34 15487 15495 (1995)
PMID: 7492550 DOI: 10.1021/bi00047a014

Abstact

The three-dimensional structure of d[CGTA'CG], where A' = [2-NH2-A], was determined to atomic (1.35 A) resolution by single isomorphous replacement. The d[CGTA'CG] hexamer crystallizes in space group P3221, and is not isomorphous with other DNA hexanucleotides. Despite completely different crystal packing, the essential characteristics of the Z-DNA conformation are maintained. The structure was determined by single isomorphous replacement using a triammine platinum fragment. Thus, this study also demonstrates, for the first time, the feasibility of the use of this reagent for the direct phasing of DNA crystal structures.

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Primary Citation of related structures
211D