Trans-cleaving hammerhead ribozymes with tertiary stabilizing motifs: in vitro and in vivo activity against a structured viroid RNA

Ministerio de Ciencia e Innovacio´ n (BFU2008-03154/ BMC to R.F.); Generalidad Valenciana (ACOMP/2010/ 278 to R.F.); Ministerio de Educacio´ n y Ciencia (Predoctoral fellowship to A.C.); and Consejo Superior de Investigaciones Cienti´ ficas (Postdoctoral I3P contract to S.G.) of Spain. Funding for open access charge: Ministerio de Ciencia e Innovacio´ n (BFU2008-03154/ BMC to R.F.); Generalidad Valenciana (ACOMP/2010/ 278 to R.F.).