SObA renders ontology-based annotations as a pruned directed acyclic graph. Every
node carries annotations — some directly, others by inference up the ontology's
transitive closure (regulates_closure: is_a, part_of, and regulates). The
graph keeps the minimal set of relationships connecting those terms (LCA node
selection + transitive-reduction of edges).
- Front end: Cytoscape.js graph embedded in gene-page widgets.
- Back end: SOLR server (ontology + annotation data) + CGI (
soba.cgi: processing + JSONP API).