296d

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|PDB= 296d |SIZE=350|CAPTION= <scene name='initialview01'>296d</scene>, resolution 2.250&Aring;
|PDB= 296d |SIZE=350|CAPTION= <scene name='initialview01'>296d</scene>, resolution 2.250&Aring;
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|LIGAND= <scene name='pdbligand=HT:2'-(4-HYDROXYPHENYL)-5-(4-METHYL-1-PIPERAZINYL)-2,5'-BI-BENZIMIDAZOLE'>HT</scene>
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|LIGAND= <scene name='pdbligand=HT:2&#39;-(4-HYDROXYPHENYL)-5-(4-METHYL-1-PIPERAZINYL)-2,5&#39;-BI-BENZIMIDAZOLE'>HT</scene>
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|ACTIVITY=
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[[Category: double helix]]
[[Category: double helix]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 15:43:46 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun Mar 23 14:33:39 2008''

Revision as of 12:33, 23 March 2008

Image:296d.gif


PDB ID 296d

Drag the structure with the mouse to rotate
, resolution 2.250Å
Ligands:
Coordinates: save as pdb, mmCIF, xml



SEQUENCE-DEPENDENT EFFECTS IN DRUG-DNA INTERACTION: THE CRYSTAL STRUCTURE OF HOECHST 33258 BOUND TO THE D(CGCAAATTTGCG)2 DUPLEX


Overview

The bis-benzimidazole drug Hoechst 33258 has been co-crystallized with the dodecanucleotide sequence d(CGCAAATTTGCG)2. The structure has been solved by molecular replacement and refined to an R factor of 18.5% for 2125 reflections collected on a Xentronics area detector. The drug is bound in the minor groove, at the five base-pair site 5'-ATTTG and is in a unique orientation. This is displaced by one base pair in the 5' direction compared to previously-determined structures of this drug with the sequence d(CGCGAATTCGCG)2. Reasons for this difference in behaviour are discussed in terms of several sequence-dependent structural features of the DNA, with particular reference to differences in propeller twist and minor-groove width.

About this Structure

296D is a Protein complex structure of sequences from [1]. Full crystallographic information is available from OCA.

Reference

Sequence-dependent effects in drug-DNA interaction: the crystal structure of Hoechst 33258 bound to the d(CGCAAATTTGCG)2 duplex., Spink N, Brown DG, Skelly JV, Neidle S, Nucleic Acids Res. 1994 May 11;22(9):1607-12. PMID:7515488

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