The genes that have found to be mutated in FA patients are called FANC. The genes FANCA, FANCB, FANCC, FANCD1 (also known as BRCA2), FANCD2, FANCE, FANCF, FANCG, FANCI, FANCJ, FANCL, FANCM, FANCN, FANCO, FANCP, and FANCQ have been identified as responsible for FA [2-5]. This evidence concerns the gene SLX4 and Friedreich ataxia.