Glutamate can be converted by one of two different pathways into
α-ketoglutarate (α-KG), and the choice of which pathway is
influenced both by oncogene input and cell proliferation and metabolic state.
GLS, kidney-type glutaminase; GLS2, liver-type glutaminase; GLUD, glutamate
dehydrogenase; ISR, integrated stress response; ROS, reactive oxygen
species.