http://linkedlifedata.com/r... | skos:definition | "A series of reactions, mediated by the intracellular phosphatidylinositol 3-kinase (PI3K). PI3K cascades lie downstream of many cell surface receptor linked signaling pathways and regulate numerous cellular functions." [GOC:ef, http://www.biocarta.com, Wikipedia:PI3K] | lld:geneontology |