REEP1 and nervous system disorder: Interestingly, mutations in genes involved in the regulation of ER biogenesis and maintenance, such as Valosin-containing protein (VCP), Atlastin-1 (ATL1), Spastin (SPAST), Reticulon 2 (RTN2), and Receptor expression enhancing protein 1 (REEP1) have been linked to neurological diseases.