The GWA studies resulted in three new candidate genes for ALS, namely FGGY (FGGY carbohydrate kinase domain containing), ITPR2 (inositol 1,4,5-triphosphate receptor, type 2) and DPP6 (component of type A neuronal transmembrane potassium channels). This evidence concerns the gene ITPR2 and amyotrophic lateral sclerosis.