Riboswitch mechanism prediction scheme. The decision tree used to classify riboswitch mechanisms into five categories is shown. Depicted are OFF switches in their ligand-bound state where a P1 switching helix has formed. See the main text and Materials and methods for additional details.
Barrick and Breaker Genome Biology 2007 8:R239 doi:10.1186/gb-2007-8-11-r239