RNA FRABASE 2.0 interface snapshots concerning the "Search" menu. Panel A shows the front page window. Panel B enables 'Advanced search' facilities with the provided filters. Panel C illustrates a list of query-matching RNA fragments with related structural information. Panel D highlights the Jmol visualization of the selected fragment. Panels E, F and G are the windows for 'Atom coordinates', 'Torsion angles' and 'Base pairs' for the selected fragment, respectively.