Whereas STMN2 was detectable in all control cell lines independent of CA repeat length, expression was reduced in three of the four sALS cell lines investigated, in keeping with the previous observation that STMN2 expression is reduced in ALS motor neurons (Klim et al., 2019; Melamed et al., 2019). This evidence concerns the gene STMN2 and amyotrophic lateral sclerosis.