Recently, a link between the haploinsufficiency of TBK1 and ALS has also been discovered [53], and a kinesin family member gene (KIF5A) was recognized as a novel gene associated with ALS [54,55] as well as a new ALS risk gene C21orf2 [56] and 15 risk loci with different genetic architecture and neuron-specific biology [16]. The gene discussed is KIF5A; the disease is amyotrophic lateral sclerosis.