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. 1989 Sep 25;17(18):7179–7186. doi: 10.1093/nar/17.18.7179

A new and versatile reagent for incorporating multiple primary aliphatic amines into synthetic oligonucleotides.

P S Nelson 1, R Sherman-Gold 1, R Leon 1
PMCID: PMC334797  PMID: 2798089

Abstract

A novel and versatile phosphoramidite, N-Fmoc-O1-DMT-O2-cyanoethoxydiisopropylamino-phosphinyl-3-am ino-1,2-propanediol (1, Fig. 1), has been synthesized and used to incorporate primary aliphatic amines into synthetic oligonucleotides. Its convenient preparation and use in solid phase oligonucleotide synthesis is described. Using phosphoramidite 1, an amino-modified oligonucleotide probe complementary to M13mp18 DNA was constructed with five primary amines attached to the 5'-terminus. The amino-modified oligonucleotide was subsequently labeled with biotin and employed in a dot-blot hybridization assay. As little as 0.5 ng of M13mp18 target DNA was colorimetrically detected.

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Selected References

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