A pseudoknot is an RNA tertiary structure containing two stem-loop structures in which the first stem's loop forms part of the second stem. The pseudoknot was first recognized in the turnip yellow mosaic virus in 1982. Pseudoknots fold into knot-shaped three-dimensional conformations but are not true topological knots.
It is possible to contrive situations in which dynamic programming-like methods can identify pseudoknots, but these methods are not general and are extremely inefficient. The general problem of pseudoknot prediction has been shown to be NP-complete.
US Patent Issued to INHA-Industry Partnership Institute on July 5 for "Visualization Method of Rna Pseudoknot Structures" (South Korean Inventors)
Jul 08, 2011; ALEXANDRIA, Va., July 8 -- United States Patent no. 7,974,786, issued on July 5, was assigned to INHA-Industry Partnership...
A conserved predicted pseudoknot in the NS2A-encoding sequence of West Nile and Japanese encephalitis flaviviruses suggests NS1' may derive from ribosomal frameshifting.(Short report)
Feb 05, 2009; Authors: Andrew E Firth (corresponding author) ; John F Atkins (corresponding author) [1,2] Findings The genus Flavivirus (see...