title: [Splicing. 2. Splicing of mRNA in the cell nucleus].
abstract: The mosaic structure of genes is shown for three out of four known types of RNAs, namely transfer, ribosomal and messenger. At least three different splicing mechanisms are involved in maturation of transcripts of these genes, two of them had been described in the previous review. Well-developed effective in vitro splicing systems permit to provide a scheme for the nuclear pre-mRNA maturation processes which take place presumably in specific ribonucleoprotein complex particles. Alternative splicing character of these pre-mRNAs, yields in increased variety of the encoded proteins.
mesh_terms: D000818:Animals; D006801:Humans; D007438:Introns; D008957:Models, Genetic; D012326:RNA Splicing; D012333:RNA, Messenger / Q000235:genetics*
chemical_list: D012333:RNA, Messenger
vernacular_title: Splaĭsing. 2. Splaĭsing mRNK v iadre.