Intron-exon structures: from molecular to population biology.

摘要: Publisher Summary This chapter discusses the intron–exon structures. In principle, any intervening sequence spliced out at RNA level can be classified as an intron. past decade, it became clear that introns fall into several groups. The structural well functional features used to classify intron a specific group. On basis of features, is possible make distinction between self-splicing and spliceosomal introns. gives brief description each major group introns, their structures, way they are excised from produce mature message. Spliceosomal have been characterized in almost all eukaryotes, with exception few early protists. A feature dependence for splicing on ribonucleoprotein complex called “spliceosome.” Spliceosome structure seems much conserved eukaryotes but very described fungi humans.