| biological_process | "Any process specifically pertinent to the functioning of integrated living units: cells, tissues, organs, and organisms. A process is a collection of molecular events with a defined beginning and end." [GOC:go_curators, GOC:isa_complete] |
| cellular_component | "The part of a cell or its extracellular environment in which a gene product is located. A gene product may be located in one or more parts of a cell and its location may be as specific as a particular macromolecular complex, that is, a stable, persistent association of macromolecules that function together." [GOC:go_curators, NIF_Subcellular:sao-1337158144] |
| molecular_function | "Elemental activities, such as catalysis or binding, describing the actions of a gene product at the molecular level. A given gene product may exhibit one or more molecular functions." [GOC:go_curators] |