UNA (unlocked nucleic acid): A flexible RNA mimic that allows engineering of nucleic acid duplex stability
作者:Niels Langkjær、Anna Pasternak、Jesper Wengel
DOI:10.1016/j.bmc.2009.06.045
日期:2009.8
UNA (unlocked nucleicacid) monomers are acyclic derivatives of RNA lacking the C2′–C3′-bond of the ribose ring of RNA. Synthesis of phosphoramidite UNA building blocks of the nucleobases adenine, cytosine, guanine, and uracil is described herein together with their incorporation into RNA strands. UNA monomers additively decrease nucleicacidduplexstability and can be positioned strategically to