- The early-onset torsion dystonia gene (DYT1) encodes an ATP-binding protein. Ozelius, L.J., Hewett, J.W., Page, C.E., Bressman, S.B., Kramer, P.L., Shalish, C., de Leon, D., Brin, M.F., Raymond, D., Corey, D.P., Fahn, S., Risch, N.J., Buckler, A.J., Gusella, J.F., Breakefield, X.O. Nat. Genet. (1997)