Mononuclear 1,3-Dideazaadenine-AgI-Thyminate Base Pairs

Litau S, Müller J

Research article (journal) | Peer reviewed

Abstract

When incorporating a single mispair of 1,3-dideazaadenine (D) and thymine (T) into a regular B-DNA duplex, a mononuclear AgI-mediated D-AgI-T base pair is formed upon the addition of AgNO3. The nuclearity of this base pair deviates from that of the previously stablished dinuclear D-AgI2-T base pair. Apparently, the geometrical constraints imposed by the surrounding canonicalbase pairs do not allow the incorporation of a second AgI, as the resulting dinuclear D-AgI2-T base pair would deviate significantly from planarity. This study demonstrates the importance of neighboring canonical base pairs not only on the stability but also on the identity of an artificial metal-mediated base pair.

Details about the publication

JournalZAAC - Zeitschrift für Anorganische und Allgemeine Chemie / Journal of Inorganic and General Chemistry
Volume641
Page range2169-2173
StatusPublished
Release year2015 (31/08/2015)
Language in which the publication is writtenEnglish
DOI10.1002/zaac.201500534
Link to the full texthttp://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84940768946&origin=inward
KeywordsBioinorganic chemistry; DNA; Metal-mediated base pair; Purine; Silver

Authors from the University of Münster

Litau, Stefanie
Professorship of Inorganic Chemistry (Prof. Müller)
Müller, Jens
Professorship of Inorganic Chemistry (Prof. Müller)