4-Cyanoindole-2′-deoxyribonucleoside (4CIN): A Universal Fluorescent Nucleoside Analogue
作者:Kellan T. Passow、Daniel A. Harki
DOI:10.1021/acs.orglett.8b01746
日期:2018.7.20
The synthesis and characterization of a universal and fluorescent nucleoside, 4-cyanoindole-2'-deoxyribonucleoside (4CIN), and its incorporation into DNA is described. 4CIN is a highly efficient fluorophore with quantum yields >0.90 in water. When incorporated into duplex DNA, 4CIN pairs equivalently with native nucleobases and has uniquely high quantum yields ranging from 0.15 to 0.31 depending on sequence and hybridization contexts, surpassing that of 2-aminopurine, the prototypical nucleoside fluorophore. 4CIN constitutes a new isomorphic nucleoside for diverse applications.
GIRGIS, NABIH S.;COTTAM, HOWARD B.;ROBINS, ROLAND K., J. HETEROCYCL. CHEM., 25,(1988) N 2, 361-366
作者:GIRGIS, NABIH S.、COTTAM, HOWARD B.、ROBINS, ROLAND K.
DOI:——
日期:——
Supramolecular Fluorescence Resonance Energy Transfer in Nucleobase‐Modified Fluorogenic RNA Aptamers
RNAaptamers form compact tertiary structures and bind their ligands in specific binding sites. Fluorescence-based strategies reveal information on structure and dynamics of RNAaptamers. Herein, we report the incorporation of the universal emissive nucleobase analog 4-cyanoindole into the fluorogenicRNAaptamer Chili, and its application as a donor for supramolecular FRET to the bound ligands DMHBI+