Comparison of aminotransferases of three Bacillus strains Bacillus altitudinis W3, Bacillus velezensis SYBC H47, and Bacillus amyloliquefaciens YP6 via genome analysis and bioinformatics
Journal of Applied Genetics(2019)
摘要
Aminotransferases have attracted considerable attention due to their extraordinary potential for the biosynthesis of chiral amines. Research on transaminase genes can facilitate their application to various fields. Herein, 89 putative aminotransferase genes potentially encoding useful biocatalysts were identified in three Bacillus strains genomes by genome annotation. Enzymes encoded by genes ota3 , ota8 , otae6 , otae21 , otaf1 , otaf8 , and otaf26 belong to pyridoxine 5′-phosphate-dependent enzyme class IV. These seven ω-aminotransferase genes are highly conserved according to phylogenetic tree and bioinformatics analyses, as are the putative lysine catalytic residues in the corresponding enzymes (ω-BPTA 1–7). The enzymes may possess similar activity to ω-aminotransferases from Arthrobacter sp. KNK 168. The potential application of these novel enzymes for the synthesis of medicinal amino compounds will be explored in future genetic engineering studies.
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关键词
Aminotransferase, Genome analysis, Conserved domains, Active site, Bioinformatics
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