TBK1 and amyotrophic lateral sclerosis: Multiple ALS-linked genes, such as SQSTM1, OPTN, and TBK1, encode for core autophagy proteins and others, such as C9orf72, FUS, TDP43, VAPB, UBQLN2, VCP, CHMP2B, ALS2, FIG4, TUBA4A, PFN1, and DCTN have a functional role in autophagy (Amin et al., 2020).