title: RNA splicing: three themes with variations.
mesh_terms: D000818:Animals; D001483:Base Sequence; D006367:HeLa Cells; D006801:Humans; D008957:Models, Genetic; D012326:RNA Splicing; D012343:RNA, Transfer / Q000378:metabolism; D013768:Tetrahymena; D014981:Xenopus
chemical_list: D012343:RNA, Transfer