Different genes have been associated with fALS and/or sALS: C9orf72–SMCR8 complex subunit (C9orf72) is the gene most commonly linked to inherited ALS, followed by TAR DNA-binding protein 43 (TARDBP), superoxide dismutase 1 (SOD1), and FUS RNA-binding protein (FUS) [9,10]. The gene discussed is C9orf72; the disease is amyotrophic lateral sclerosis.