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1. The influence of loops on the binding of the [Ru(phen) 2 dppz] 2+ light-switch compound to i-motif DNA structures revealed by time-resolved spectroscopy.

Author

Baptista FR, Devereux SJ, Gurung SP, Hall JP, Sazanovich IV, Towrie M, Cardin CJ, Brazier JA, Kelly JM, and Quinn SJ

Subjects
Binding Sites, DNA metabolism, Kinetics, Organometallic Compounds metabolism, Spectroscopy, Fourier Transform Infrared, Thymine chemistry, DNA chemistry, Light, Organometallic Compounds chemistry
Abstract

Ultrafast time resolved infrared (TRIR) is used to report on the binding site of the "light-switch" complex [Ru(phen) 2 (dppz)] 2+ 1 to i-motif structures in solution. Detailed information is provided due to perturbation of the local base vibrations by a 'Stark-like' effect which is used to establish the contribution of thymine base loop interactions to the binding site of 1 in this increasingly relevant DNA structure.

Published
2020
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