Abstract
The variety of potentially useful dyes or haptenes available for fluorescent nucleic acid hybridization assays is far greater than what can be obtained from commercial sources 1,2. Since this diversity could be useful in many laboratory applications, we have developed a simple and inexpensive procedure for preparing nonpurified labeled nucleotides 3,4,5, for use in common nucleic acid labeling reactions, such as PCR and nick translation. The modified nucleotides were synthesized by coupling allylamine-dUTP to the succinimidyl-ester derivatives of the fluorescent dyes or haptenes such as biotin or digoxigenin, which require fluorescently labeled proteins for detection. This method allows custom preparation of most common fluorescent nucleotides and rapid testing of new ones, while reducing the cost of procedures such as multiplex fluorescent in situ hybridization (M-FISH) by 100-200 fold.
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References
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Henegariu, O., Bray-Ward, P. & Ward, D. Custom fluorescent-nucleotide synthesis as an alternative method for nucleic acid labeling. Nat Biotechnol 18, 345–348 (2000). https://doi.org/10.1038/73815
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DOI: https://doi.org/10.1038/73815
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