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Madison AL, Perez ZA, To P, Maisonet T, Rios EV, Trejo Y, Ochoa-Paniagua C, Reno A, Stemp EDA. Dependence of DNA–Protein Cross-Linking via Guanine Oxidation upon Local DNA Sequence As Studied by Restriction Endonuclease Inhibition. Biochemistry 2011; 51:362-9. [DOI: 10.1021/bi201087q] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Amanda L. Madison
- Department of Physical Sciences and
Mathematics, Mount St. Mary’s College, 12001 Chalon Road,
Los Angeles, California 90049, United States
| | - Zitadel A. Perez
- Department of Physical Sciences and
Mathematics, Mount St. Mary’s College, 12001 Chalon Road,
Los Angeles, California 90049, United States
| | - Phuong To
- Department of Physical Sciences and
Mathematics, Mount St. Mary’s College, 12001 Chalon Road,
Los Angeles, California 90049, United States
| | - Tiffany Maisonet
- Department of Physical Sciences and
Mathematics, Mount St. Mary’s College, 12001 Chalon Road,
Los Angeles, California 90049, United States
| | - Eunice V. Rios
- Department of Physical Sciences and
Mathematics, Mount St. Mary’s College, 12001 Chalon Road,
Los Angeles, California 90049, United States
| | - Yuri Trejo
- Department of Physical Sciences and
Mathematics, Mount St. Mary’s College, 12001 Chalon Road,
Los Angeles, California 90049, United States
| | - Carmen Ochoa-Paniagua
- Department of Physical Sciences and
Mathematics, Mount St. Mary’s College, 12001 Chalon Road,
Los Angeles, California 90049, United States
| | - Anita Reno
- Department of Physical Sciences and
Mathematics, Mount St. Mary’s College, 12001 Chalon Road,
Los Angeles, California 90049, United States
| | - Eric D. A. Stemp
- Department of Physical Sciences and
Mathematics, Mount St. Mary’s College, 12001 Chalon Road,
Los Angeles, California 90049, United States
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Brabec V, Balcarova Z. Restriction-enzyme cleavage of DNA modified by platinum(II) complexes. EUROPEAN JOURNAL OF BIOCHEMISTRY 1993; 216:183-7. [PMID: 8365404 DOI: 10.1111/j.1432-1033.1993.tb18131.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The effect of binding of cis-diamminedichloroplatinum(II), its trans isomer and diethylenetriaminechloroplatinum(II) chloride to DNA on the splicing effectiveness of BamHI, EcoRI and SalI restriction endonucleases has been determined by means of gel electrophoresis. All three platinum complexes inhibit the cleavage of linearized plasmid DNA. In addition, the three platinum complexes bound to DNA constitute a barrier across which the linear diffusion of EcoRI on DNA is difficult. We interpret these findings to mean that the splicing effectiveness of restriction enzymes is influenced by bifunctional and monofunctional DNA adducts of platinum via both steric interference and DNA conformational distortions. Whereas the platinum adducts in the restriction sites or in their very close proximity inhibit the cleavage, the lesions occurring a greater distance from the restriction site can slow down the process of the localization of recognition sequences.
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Affiliation(s)
- V Brabec
- Institute of Biophysics, Academy of Sciences of the Czech Republic, Brno
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