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Structural analysis and genetic variation of the 16S-23S rDNA internal spacer region from Micrococcus luteus strains. 2003

S Haga, and Y Hirano, and O Murayama, and B C Millar, and J E Moore, and M Matsuda
Laboratory of Molecular Biology, School of Environmental Health Sciences, Azabu University, Sagamihara, Japan.

OBJECTIVE To clone and sequence the 16S-23S ribosomal DNA (rDNA) internal spacer region (ISR) from Micrococcus luteus. RESULTS The primer pair for 16S-23S rDNA ISR amplified a fragment of about 850 bp in length for two strains, JCM3347 and JCM3348 and a fragment of about 790 bp for a strain, ATCC9341. After sequencing the ISRs were identified by the comparison of the ISRs and the flanking regions of ISR. CONCLUSIONS Although the sequence difference of the ISR occurred at only one position between the two JCM strains, the highly variable length (440 and 370 bp) and sequence similarity (about 40%) were demonstrated between the ISRs of the two JCM strains and a ATCC strain. CONCLUSIONS A CCTCCT sequence was first detected at the 3'-end of the 16S rDNA of the three strains. Moreover, highly similar sequence to the 21-bp region containing a putative rRNA processing site was observed in the ISR of the three strains. Interestingly, no intercistronic tRNAs were demonstrated in the ISRs from the three strains.

UI MeSH Term Description Entries
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D004269 DNA, Bacterial Deoxyribonucleic acid that makes up the genetic material of bacteria. Bacterial DNA
D001483 Base Sequence The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence. DNA Sequence,Nucleotide Sequence,RNA Sequence,DNA Sequences,Base Sequences,Nucleotide Sequences,RNA Sequences,Sequence, Base,Sequence, DNA,Sequence, Nucleotide,Sequence, RNA,Sequences, Base,Sequences, DNA,Sequences, Nucleotide,Sequences, RNA
D012336 RNA, Ribosomal, 16S Constituent of 30S subunit prokaryotic ribosomes containing 1600 nucleotides and 21 proteins. 16S rRNA is involved in initiation of polypeptide synthesis. 16S Ribosomal RNA,16S rRNA,RNA, 16S Ribosomal,Ribosomal RNA, 16S,rRNA, 16S
D012338 RNA, Ribosomal, 23S Constituent of 50S subunit of prokaryotic ribosomes containing about 3200 nucleotides. 23S rRNA is involved in the initiation of polypeptide synthesis. 23S Ribosomal RNA,23S rRNA,RNA, 23S Ribosomal,Ribosomal RNA, 23S,rRNA, 23S
D014644 Genetic Variation Genotypic differences observed among individuals in a population. Genetic Diversity,Variation, Genetic,Diversity, Genetic,Diversities, Genetic,Genetic Diversities,Genetic Variations,Variations, Genetic
D016415 Sequence Alignment The arrangement of two or more amino acid or base sequences from an organism or organisms in such a way as to align areas of the sequences sharing common properties. The degree of relatedness or homology between the sequences is predicted computationally or statistically based on weights assigned to the elements aligned between the sequences. This in turn can serve as a potential indicator of the genetic relatedness between the organisms. Sequence Homology Determination,Determination, Sequence Homology,Alignment, Sequence,Alignments, Sequence,Determinations, Sequence Homology,Sequence Alignments,Sequence Homology Determinations
D016982 Micrococcus luteus A species of gram-positive, spherical bacteria whose organisms occur in tetrads and in irregular clusters of tetrads. The primary habitat is mammalian skin.
D017422 Sequence Analysis, DNA A multistage process that includes cloning, physical mapping, subcloning, determination of the DNA SEQUENCE, and information analysis. DNA Sequence Analysis,Sequence Determination, DNA,Analysis, DNA Sequence,DNA Sequence Determination,DNA Sequence Determinations,DNA Sequencing,Determination, DNA Sequence,Determinations, DNA Sequence,Sequence Determinations, DNA,Analyses, DNA Sequence,DNA Sequence Analyses,Sequence Analyses, DNA,Sequencing, DNA
D020459 Genes, rRNA Genes, found in both prokaryotes and eukaryotes, which are transcribed to produce the RNA which is incorporated into RIBOSOMES. Prokaryotic rRNA genes are usually found in OPERONS dispersed throughout the GENOME, whereas eukaryotic rRNA genes are clustered, multicistronic transcriptional units. rRNA Genes,Ribosomal RNA Genes,Gene, Ribosomal RNA,Gene, rRNA,Genes, Ribosomal RNA,RNA Gene, Ribosomal,RNA Genes, Ribosomal,Ribosomal RNA Gene,rRNA Gene

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