Overall, they identify processes related to Growth and Development Signaling (Axon guidance, Developmental biology, KIT signaling regulation, NCAM signaling for neurite out-growth, Angiotensin II-stimulated signaling, Regulation of dopamine receptor signaling pathway) and Neurotransmission and synaptic plasticity (Glutamatergic synapse, Long-term depression, Long-term potentiation, cGMP-PKG signaling pathway) are the most significantly enriched processes. This evidence concerns the gene KIT and major depressive disorder.