Primary and secondary structures of rRNA spacer regions in entericocci
Article Abstract:
Polymerase chain reaction (PCR) was utilized to determine the nucleotide sequences of the 16S-23S and 23S-5S ribosomal RNA (rRNA) spacer regions one and two from enterococci strains. PCR analysis of the spacer regions one and two of enterococci strains indicated the presence of palindromic and inverted sequences that mediate the interaction between the two spacer regions. Furthermore, sequence differences between enterococci species and strains compensate each other to preserve the secondary structure of the RNA.
Publication Name: Microbiology
Subject: Biological sciences
ISSN: 1350-0872
Year: 1997
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Sequences and evolutionary analyses of eukaryotic-type protein kinases from streptomyces coelicolor A3(2)
Article Abstract:
Research was conducted to examine distribution and evolutionary relationship among protein kinases in prokaryotes and eukaryotes. Results show that originally eukaryotic-type protein kinases were the only type in both classes of organisms but prokaryotes lost them during their evolutionary process. Nucleotide sequence data for four genes encoding the enzyme in Streptomyces coelicolor A3(2) is presented.
Publication Name: Microbiology
Subject: Biological sciences
ISSN: 1350-0872
Year: 1999
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Comparative sequence analyses reveal frequent occurrence of short segments containing an abnormally high number of non-random base variations in bacterial rRNA genes
Article Abstract:
Research was conducted to delineate the occurrence of lateral transfer of rRNA genes in bacteria. Data from a comparative sequence analyses of the 16S and 23S rRNA genes reveal that short segments of RNA exhibit non-random base variaions, which suggests a lateral transfer of rRNA gene segments between bacterial species.
Publication Name: Microbiology
Subject: Biological sciences
ISSN: 1350-0872
Year: 2000
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