Rs6539137

rs6539137 is one of several TXNRD1 SNPs significantly associated with familial amyotrophic lateral sclerosis (FALS) but not sporadic amyotrophic lateral sclerosis (ALS). The risk allele, rs6539137(A), is also associated with an earlier age of onset by 8 years, and the shift was more significant in males (in fact, insignificant in females).