Figure 2.
A snapshot of the cellular component ontology in AraCyc and MetaCyc. The cellular component terms are hierarchically classified according to the “is-a” relationship. The nine top-level classes along with some of their subclasses are shown in A. The subclasses can be expanded to display all the instance terms. An example of a term detail page is shown in B. A term can have additional relationships such as “component-of” and “surrounded-by.”
