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Potential slippery heptanucleotides and stimulatory RNA secondary structures for − 1 ribosomal frameshifting in Nounane virus, Kedougou virus, Chaoyang virus and Lammi virus. In contrast to the insect-specific flavivirus fifo frameshift site, these cases are merely candidate frameshift sites and currently have either no (Nounane, Kedougou) or only very modest (Chaoyang, Lammi) phylogenetic support. Structures were predicted with pknotsRG (Reeder et al., 2007).
