CHRNA4 (Cholinergic Receptor Nicotinic Alpha 4 Subunit): CHRNA4 encodes a subunit of the nicotinic acetylcholine receptor, which is important in the nervous system for neurotransmission. Mutations in CHRNA4 have been linked to certain forms of epilepsy and other neurological disorders, reflecting its role in modulating neuronal excitability and synaptic transmission....