Positive RNA viruses are forced to protect their genome. To do this, they use enzymes that will modify RNA in order to ensure stability and escape the immune system. In this article, published in the journal Nucleic Acids Research, scientists characterize one of these enzymes in a family of viruses related to Coronaviruses. The emergence of the latter shows that the function is critical and that its evolution is not linear.
Published on November 2, 2022