Blip

About this episode

Locked nucleic acid (LNA™) nucleosides are a class of nucleic acid analogues in which the ribose ring is “locked” by a methylene bridge connecting the 2’-O atom and the 4’-C atom (Figure 1). LNA™ nucleosides contain the six common nucleobases (T, C, G, A, U and mC) that appear in DNA and RNA and are able to form base pairs according to standard Watson-Crick base pairing rules. However, by “locking” the molecule with the methylene bridge the LNA™ is constrained in the ideal conformation for Watson-Crick binding. When incorporated into a DNA oligonucleotide, LNA™ therefore makes the pairing with a complementary nucleotide strand more rapid and increases the stability of the resulting duplex. Learn more about LNA used for microRNA microarray analysis.

• Release Date

  Feb 25, 2009

• Runtime

  01:50