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DNA incorporation of a trans-chelating bis-pyridyl ligand for square-planar coordinated metal cations. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.04.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Bomholt N, Filichev VV, Pedersen EB. Cationic modified nucleic acids for use in DNA hairpins and parallel triplexes. Org Biomol Chem 2011; 9:4527-34. [PMID: 21523298 DOI: 10.1039/c1ob05085k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Non-nucleosidic DNA monomers comprising partially protonated amines at low pH have been designed and synthesized. The modifications were incorporated into DNA oligonucleotides via standard DNA phosphoramidite synthesis. The ability of cationic modifications to stabilize palindromic DNA hairpins and parallel triplexes were evaluated using gel electrophoresis, circular dichroism and thermal denaturation measurements. The non-nucleosidic modifications were found to increase the thermal stability of palindromic hairpins at pH 8.0 as compared with a nucleosidic tetraloop (TCTC). Incorporation of modifications at the 5'-end of a triplex forming oligonucleotide resulted in a significant increase in thermal stability at low pH when the modifications were placed as the 5'-dangling end.
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Affiliation(s)
- Niels Bomholt
- Nucleic Acid Center, Department of Physics and Chemistry, University of Southern Denmark, Campusvej 55, DK-5230, Odense M, Denmark.
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Metal–bipyridine complexes in DNA backbones and effects on thermal stability. J Biol Inorg Chem 2010; 15:629-39. [DOI: 10.1007/s00775-010-0630-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2009] [Accepted: 01/22/2010] [Indexed: 10/19/2022]
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Huang CH, Parish A, Samain F, Garo F, Häner R, Morrow JR. Binding of Europium(III) to a Non-Nucleosidic Phenanthroline Linker in DNA. Bioconjug Chem 2010; 21:476-82. [DOI: 10.1021/bc900386w] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Ching-Hui Huang
- Department of Chemistry, 526 Natural Sciences Complex, University at Buffalo, State University of New York, Amherst, New York 14260-3000, and Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Austin Parish
- Department of Chemistry, 526 Natural Sciences Complex, University at Buffalo, State University of New York, Amherst, New York 14260-3000, and Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Florent Samain
- Department of Chemistry, 526 Natural Sciences Complex, University at Buffalo, State University of New York, Amherst, New York 14260-3000, and Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Florian Garo
- Department of Chemistry, 526 Natural Sciences Complex, University at Buffalo, State University of New York, Amherst, New York 14260-3000, and Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Robert Häner
- Department of Chemistry, 526 Natural Sciences Complex, University at Buffalo, State University of New York, Amherst, New York 14260-3000, and Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Janet R. Morrow
- Department of Chemistry, 526 Natural Sciences Complex, University at Buffalo, State University of New York, Amherst, New York 14260-3000, and Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
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