An RNA Pseudoknot (image) Brown University Caption RNA of the fruit fly para gene includes an arm-like structure jutting from the bottom that ends in a ring-shaped "pseudoknot" of nucleotides. The structure gives the RNA editing enzyme dADAR a new place to connect, producing an alternate way of editing nucleotides (in red). Credit Robert Reenan/Brown University Usage Restrictions with credit Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.