NCIt definition : A set of complex signal transduction pathways described by the Kyoto Encyclopedia
of Genes and Genomes (KEGG) Pathway database, where each is dependent on the protein
kinase activity of serine/threonine-protein kinase mTOR. This kinase is part of 2
structurally and functionally distinct signaling complexes, mTOR complex 1 and 2 (mTORC1
and mTORC2, respectively), which together regulate cellular metabolism, growth and
survival in response to hormones, growth factors, nutrients and stress signals.;