Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5221168 | Tetrahedron | 2012 | 8 Pages |
Abstract
A convenient method of oligonucleotide labeling using click chemistry has been developed. A 2â²-mesyloxyethyl ribothymidine phosphoramidite monomer was incorporated into DNA at several loci during solid phase oligonucleotide synthesis and converted to 2â²-azidoethyl ribothymidine in high yield on the synthesis resin. The resultant azide oligonucleotides were doubly and triply labeled with alkyne-modified cyanine dyes and their biophysical properties were studied. The influence of the dye structures and method of labeling on the fluorescence properties of the DNA probes is discussed and compared with a standard labeling method using active esters of Cy-Dyes.
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Marta Gerowska, Lucy Hall, James Richardson, Montserrat Shelbourne, Tom Brown,