RELN (Reelin): RELN encodes a large secreted extracellular matrix protein named reelin, which is crucial for neuronal migration and positioning during brain development. It affects the layering of neurons in the cerebral cortex and cerebellum. Mutations or alterations in RELN expression have been implicated in several neuropsychiatric disorders, including autism, schizophrenia, and bipolar disorder. Reelin also plays a role in synaptic plasticity in the adult brain, impacting learning and memory....