Responsive-to-antagonist1, a Menkes/Wilson disease related copper transporter, is required for ethylene signaling in Arabidopsis. - Hirayama,T..; Kieber,J..; Hirayama,N..; Kogan,M..; Guzman,P..; Nourizadeh,S..; Alonso,J..; Dailey,W..; Dancis,A..; Ecker,J.. (Cell, 1999)