title: Rare group I intron with insertion sequence element in a bacterial ribonucleotide reductase gene.
abstract: A rare group I intron in a cyanobacterial ribonucleotide reductase gene has been characterized. It contains a mobile insertion sequence element not required for RNA splicing. Ribonucleotide reductase genes were found to be hot spots for all three types of self-splicing intervening sequences, including group I and II introns and inteins.
authors.affiliation: Institute of Biologial Sciences and Biotechnology, Donghua University, Shanghai, China.
authors.forename: Qing
authors.initials: Q
authors.lastname: Meng
authors.forename: Yi
authors.initials: Y
authors.lastname: Zhang
authors.forename: Xiang-Qin
authors.initials: XQ
authors.lastname: Liu
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D004251:DNA Transposable Elements; D047668:Inteins; D007438:Introns; D008969:Molecular Sequence Data; D046937:Nostoc / Q000235:genetics*; D012264:Ribonucleotide Reductases / Q000235:genetics*
chemical_list: D004251:DNA Transposable Elements; D012264:Ribonucleotide Reductases