RAB11A and amyotrophic lateral sclerosis: However, the inconsistency in direct correlation between TDP-43 proteinopathy and loss of RAB11 in some cases may be due to their complex crosstalk and underlying secondary pathology, for example, Senataxin (SETX) (chr9:135202108 T > C) pathology in ALS#10 and C9ORF extension in ALS#3.