Synthesis and photophysical properties of pyrene-labeled 3-deaza-2′-deoxyadenosines comprising a non-π-conjugated linker: fluorescence quenching-based oligodeoxynucleotide probes for thymine identification
FRET induced by an ‘allosteric’ cycloaddition reaction regulated with exogenous inhibitor and effectors
作者:Lei Zhu、Vincent M. Lynch、Eric V. Anslyn
DOI:10.1016/j.tet.2004.06.079
日期:2004.8
that this reaction could be silenced by ethylenediaminetetraacetic acid (EDTA), which prohibited the reduction of copper(II) sulfate to the catalytically active Cu(I) species by sodium ascorbate. Exogenous transition metal ions such as Zn2+ and Pb2+ were shown to competitively coordinate with EDTA thus releasing free Cu2+ for the subsequent reduction, and consequently restoring the reaction. The modulated
(1 -> 3)-beta-D-Glucans having various functional appendages (lactoside, ferrocene, pyrene, and porphyrin) can be prepared in an convenient, quantitative, and regioselective manner through regioselective bromination-azidation of curdlan to afford 6-azido6-deoxycurdlan followed by chemoselective [3+2]-cycloadditions with various functional modules bearing a terminal alkyne group. The ability to monitor reaction conversions is an additional advantage of this synthetic approach over the conventional direct modifications on polysaccharides; the reaction can be readily monitored based on the intensity of azido peaks in the in situ attenuated total reflection infrared spectra. (c) 2005 Elsevier Ltd. All rights reserved.
reaction was followed using Fourier transform infrared (FT-IR) spectroscopy, UV/vis spectroscopy, fluorescence, cyclic voltammetry, thermogravimetric analysis (TGA), and particle size measurements. The surface loading of pyrene bearing a terminal acetylene group was found to be 0.54 mmol/g. Because of its gentle nature and specificity, the chemistry developed in this work can be used as a general platform
Base-discriminating fluorescent (BDF) nucleoside: distinction of thymine by fluorescence quenchingElectronic supplementary information (ESI) available: Experimental procedures for new compounds, UV and excitation spectra. See http://www.rsc.org/suppdata/cc/b4/b405832a/
A novel fluorescence BDF probe containing pyrene-labeled 7-deaza-2′-deoxyadenosine has been developed for the detection of thymine base on a target DNA.
为检测目标 DNA 上的胸腺嘧啶碱基,我们开发了一种新型荧光 BDF 探针,其中含有芘标记的 7-deaza-2′-deoxyadenosine。
Locked nucleic acid (LNA) induced effect on the hybridization and fluorescence properties of oligodeoxyribonucleotides modified with nucleobase-functionalized DNA monomers
作者:Mamta Kaura、Patrick J. Hrdlicka
DOI:10.1039/c5ob00860c
日期:——
Mixmer oligonucleotides modified with LNA and C5-pyrene-functionalized DNA monomers are shown to display interesting fluorescence properties for the discrimination of single nucleotide polymorphisms (SNPs).