Coronavirus 3' UTR pseudoknot
The Coronavirus 3' UTR pseudoknot is an RNA structure found in the coronavirus genome. Coronaviruses contain 30 kb single-stranded positive-sense RNA genomes. The 3' UTR region of these coronavirus genomes contains a conserved ~55 nucleotide pseudoknot structure which is necessary for viral genome replication. The mechanism of cis-regulation is unclear, but this element is postulated to function in the plus-strand.
Other RNA families identified in the coronavirus include the coronavirus SL-III cis-acting replication element, the coronavirus frameshifting stimulation element, the coronavirus 3' stem-loop II-like motif and the coronavirus packaging signal.
