Probing the role of a secondary structure element at the 5'- and 3'-splice sites in group I intron self-splicing: the tetrahymena L-16 ScaI ribozyme reveals a new role of the G.U pair in self-splicing

Probing the role of a secondary structure element at the 5'- and 3'-splice sites in group I intron self-splicing: the tetrahymena L-16 ScaI ribozyme reveals a new role of the G.U pair in self-splicing