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The following BEL Functions represent classes of events or phenomena taking place at the level of the cell or the organism which do not correspond to molecular abundances, but instead to a biological process like angiogenesis or a pathology like cancer.

biologicalProcess(), bp()

biologicalProcess(ns:v) or bp(ns:v) denotes the process or population of events designated by the value v in the namespace ns.


bp(GOBP:"cell cycle arrest")

pathology(), path()

pathology(ns:v) or path(ns:v) denotes the disease or pathology process designated by the value v in the namespace ns. The pathology() function is included to facilitate the distinction of pathologies from other biological processes because of their importance in many potential applications in the life sciences.


pathology(MESHD:"Pulmonary Disease, Chronic Obstructive")

activity(), act()

activity(<abundance>) or act(<abundance) is used to specify events resulting from the molecular activity of an abundance. The activity() function provides distinct terms that enable differentiation of the increase or decrease of the molecular activity of a protein from changes in the abundance of the protein. activity() can be applied to a protein, complex, or RNA abundance term, and modified with a molecularActivity() argument to indicate a specific type of molecular activity.






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