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1d32

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{{STRUCTURE_1d32| PDB=1d32 | SCENE= }}
{{STRUCTURE_1d32| PDB=1d32 | SCENE= }}
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'''DRUG-INDUCED DNA REPAIR: X-RAY STRUCTURE OF A DNA-DITERCALINIUM COMPLEX'''
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===DRUG-INDUCED DNA REPAIR: X-RAY STRUCTURE OF A DNA-DITERCALINIUM COMPLEX===
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==Overview==
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Ditercalinium is a synthetic anticancer drug that binds to DNA by bis-intercalation and activates DNA repair processes. In prokaryotes, noncovalent DNA-ditercalinium complexes are incorrectly recognized by the uvrABC repair system as covalent lesions on DNA. In eukaryotes, mitochondrial DNA is degraded by excess and futile DNA repair. Using x-ray crystallography, we have determined, to 1.7 A resolution, the three-dimensional structure of a complex of ditercalinium bound to the double-stranded DNA fragment [d(CGCG)]2. The DNA in the complex with ditercalinium is kinked (by 15 degrees) and severely unwound (by 36 degrees) with exceptionally wide major and minor grooves. Recognition of the DNA-ditercalinium complex by uvrABC in prokaryotes, and by mitochondrial DNA repair systems in eukaryotes, might be related to drug-induced distortion of the DNA helix.
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(as it appears on PubMed at http://www.pubmed.gov), where 2006181 is the PubMed ID number.
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{{ABSTRACT_PUBMED_2006181}}
==About this Structure==
==About this Structure==
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[[Category: Double helix]]
[[Category: Double helix]]
[[Category: Right handed dna]]
[[Category: Right handed dna]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 13:23:48 2008''
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jun 30 22:15:45 2008''

Revision as of 19:15, 30 June 2008

Template:STRUCTURE 1d32

DRUG-INDUCED DNA REPAIR: X-RAY STRUCTURE OF A DNA-DITERCALINIUM COMPLEX

Template:ABSTRACT PUBMED 2006181

About this Structure

Full crystallographic information is available from OCA.

Reference

Drug-induced DNA repair: X-ray structure of a DNA-ditercalinium complex., Gao Q, Williams LD, Egli M, Rabinovich D, Chen SL, Quigley GJ, Rich A, Proc Natl Acad Sci U S A. 1991 Mar 15;88(6):2422-6. PMID:2006181

Page seeded by OCA on Mon Jun 30 22:15:45 2008

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