1ZPI image
Deposition Date 2005-05-16
Release Date 2005-10-11
Last Version Date 2024-04-03
Entry Detail
PDB ID:
1ZPI
Keywords:
DNA
Title:
Crystal structure analysis of the minor groove binding quinolinium quaternary salt SN 8224 complexed with CGCGAATTCGCG
Biological Source:
Source Organism:
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
1.60 Å
R-Value Free:
0.25
R-Value Work:
0.22
R-Value Observed:
0.22
Space Group:
P 21 21 21
1ZPI validation report
Macromolecular Entities
Polymer Type:polydeoxyribonucleotide
Molecule:5'-D(*CP*GP*CP*GP*AP*AP*TP*TP*CP*GP*CP*G)-3'
Chain IDs:A, B
Chain Length:12
Number of Molecules:2
Biological Source:
Ligand Molecules
MG
SN9
Primary Citation
Structures of two minor-groove-binding quinolinium quaternary salts complexed with d(CGCGAATTCGCG)(2) at 1.6 and 1.8 Angstrom resolution.
Acta Crystallogr.,Sect.D 61 1348 1353 (2005)
PMID: 16204886 DOI: 10.1107/S0907444905022997

Abstact

The structures of the complexes formed between two anticancer minor-groove-binding quinolinium quaternary salts and the dodecamer d(CGCGAATTCGCG)(2) have been refined to resolutions of 1.6 and 1.8 Angstrom. The complexes crystallized in space group P2(1)2(1)2(1) and the structures are isomorphous with previously solved dodecamer structures. The ligands both bind in the central AT region of the minor groove and although the crystallization conditions and structures of the ligands are very similar, they bind in opposing orientations. The structures are compared with two previously published structures of quinolinium quaternary salts, refined at 2.5 Angstrom resolution, complexed with d(CGCGAATTCGCG)(2) and an e(6)G-modified DNA.

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Primary Citation of related structures
1ZPH