ISDA

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:

PDB Version:

Deposition Date:

1995-06-13

Release Date:

1996-03-22

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

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Macromolecular Entities

Polymer Type:polydeoxyribonucleotide
Description: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.

Parkinson, G.N, Arvanitis, G.M, Lessinger, L, Ginell, S.L, Jones, R, Gaffney, B, Berman, H.M.Show

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