Neuronal NOS, or neuronal nitric oxide synthase, is an enzyme found primarily in the brain and nervous system. It plays a crucial role in producing nitric oxide, a signaling molecule that helps regulate various functions, including blood flow and neurotransmission. This enzyme is essential for communication between neurons and contributes to processes like learning and memory. Neuronal NOS is activated by calcium ions and is often associated with glutamate, a key neurotransmitter. Dysregulation of neuronal NOS can lead to neurological disorders, highlighting its importance in maintaining healthy brain function. Understanding this enzyme can provide insights into potential treatments for such conditions.