Immune system process.

<p>Mining down in Gene Ontology structural networks of hierarchial tree of categories of biological process, from top most general biological processes in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0043551#pone-0043551-g002" target="_blank">Figure 2</a>, the most over-represented immune system process was further mining down levels by levels into its subcategories with all biological processes in each level shown in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0043551#pone.0043551.s001" target="_blank">Figure S1</a> and from each level, the over-represented biological processes are summarized here. Each color represents each level in the order from top to bottom as mining down the levels from top level of the hierarchial tree in the immune system process.