Figure 3.

Organization of the RAG database. Information about RNA's topological libraries in RAG is organized hierarchically according to graph motif type (tree or dual), vertex number, library of topologies, and status of topology (existing, candidate, or hypothetical), with hyperlinks to other databases providing sequence, structure, and function data of existing RNAs. The existing RNA topologies are also catalogued according to functional class. Other components of RAG include an RNA Matrix Program for converting a secondary structure into a tree graph and RNA tutorials on concepts and techniques employed.