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http://dx.doi.org/10.5352/JLS.2022.32.6.463

Conservative Genes among 1,309 Species of Prokaryotes  

Lee, Dong-Geun (Department of Pharmaceutical Engineering, College of Medical and Life Science, Silla University)
Publication Information
Journal of Life Science / v.32, no.6, 2022 , pp. 463-467 More about this Journal
Abstract
As a result of applying the COG (Cluster of Orthologous Groups of Protein) algorithm to 1,309 species to confirm the conserved genes of prokaryotes, ribosomal protein S11 (COG0100) was identified. The numbers of conservative genes were 2, 5, 5, and 6 in 1,308, 1,307, 1,306, and 1,305 species, respectively. Twenty-nine genes were conserved in over 1,302 species, and they encoded 23 ribosomal proteins, 3 tRNA synthetases, 2 translation factors, and 1 RNA polymerase subunit. Most of them were related to protein production, suggesting the importance of protein expression in prokaryotes. The highest conservative COG was COG0048 (ribosomal protein S12) among the 29 COGs. The 29 conserved genes usually have one protein for each prokaryote. COG0090 (ribosomal protein L2) had not only the lowest conservation value but also the largest standard deviation of phylogenetic distance value. As COG0090 is not only a member of the ribosome, but also a regulator of replication and transcription, it could be inferred that prokaryotes have large variations in COG0090 to survive in various environments. This study could provide data necessary for basic science, tumor control, and development of antibacterial agents.
Keywords
COG (Cluster of Orthologous Groups of proteins); conservative gene; ortholog; prokaryote;
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