Merck, M062000-1G, Amino-ON CPG

Amino-ON CPG can be employed to introduce a covalently bound, primary amino group at the 3′-end of an oligonucleotide. It comprises a protected hexylamino group. The free amine is liberated under the alkaline conditions that are employed to cleave and deprotect the oligonucleotide on the support, while the hexylamino group remains attached to the oligonucleotide. The Amino-ON CPG further comprises a DMT-protective group which is removed in the first synthesis cycle. The synthesis of oligonucleotides is conducted in the same manner as with nucleoside-loaded CPG, without changes in any of the reagents of the synthesis. Amino-ON CPG can be employed to conjugate biotin, fluorescein or other modifiers and reporter groups to the 3′-end of oligonucleotides or to attach oligonucleotides to surfaces. Proligo′s Amino-ON CPG combines the advanced features of cleavage and deprotection under mild conditions, and maintenance of the integrity of the 3′-modification with high synthesis yields.