MITF and Werner syndrome: Many genes have been linked to WS, including paired box 3 (PAX3) (OMIM 606597), MITF (OMIM 156845), snail family zinc finger 2 (SNAI2) (OMIM 602150), endothelin receptor type B (EDNRB) (OMIM 131244), endothelin 3 (EDN3) (OMIM 131242), and SOX10 (OMIM 602229).