title: An intron in the 23S rRNA gene of the Chlorella chloroplasts: complete nucleotide sequence of the 23S rRNA gene.
abstract: A 243 bp intron was found within the 23S rRNA gene of the unicellular green alga Chlorella ellipsoidea. This intron is A+T-rich (63.7%) compared with the 23S rRNA (50.5%) and is located in domain II of the 23S rRNA. In contrast to rRNA introns so far known, this intron is considerably small and does not possess features of group I introns in spite of its possible folded secondary structure; this is a new type rRNA intron. The complete nucleotide sequence of the 23S rRNA gene (2,965 bp) was also compared with that of tobacco chloroplasts and E. coli.
authors.affiliation: Mitsubishi-kasei Institute of Life Sciences, Tokyo, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Yamada
authors.forename: M
authors.initials: M
authors.lastname: Shimaji
mesh_terms: D001483:Base Sequence; D002708:Chlorella / Q000235:genetics*; D005796:Genes; D007438:Introns; D008969:Molecular Sequence Data; D012335:RNA, Ribosomal / Q000235:genetics*; D012338:RNA, Ribosomal, 23S / Q000235:genetics*
chemical_list: D012335:RNA, Ribosomal; D012338:RNA, Ribosomal, 23S