Journal
MICROBIOLOGYOPEN
Volume 5, Issue 4, Pages 626-636Publisher
WILEY-BLACKWELL
DOI: 10.1002/mbo3.357
Keywords
Biocatalysis; differentially expressed gene; Pseudomonas; Transcriptome
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Funding
- National Natural Science Foundation of China [31460230, 21262051]
- New Century Excellent Talent of the Ministry of Education [NCET-13-1069]
- Guizhou Science and Technology Department [QKHGZ-2011-7017, QKHSZ-2012-3078, QKHRZ-2013-47, QKHLHZ-2014-7586]
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Biocatalysis is an emerging strategy for the production of enantio-pure organic molecules. However, lacking of commercially available enzymes restricts the widespread application of biocatalysis. In this study, we report a Pseudomonas strain which exhibited versatile oxidation activity to synthesize chiral sulfoxides when growing under M9-toluene medium and reduction activity to synthesize chiral alcohols when on Luria-Bertani (LB) medium, respectively. Further comparative transcriptome analysis on samples from these two cultural conditions has identified 1038 differentially expressed genes (DEG). Gene Ontology (GO) enrichment and KEGG pathways analysis demonstrate significant changes in protein synthesis, energy metabolism, and biosynthesis of metabolites when cells cultured under different conditions. We have identified eight candidate enzymes from this bacterial which may have the potential to be used for synthesis of chiral alcohol and sulfoxide chemicals. This work provides insights into the mechanism of diversity in catalytic properties of this Pseudomonas strain growth with different cultural conditions, as well as candidate enzymes for further biocatalysis of enantiomerically pure molecules and pharmaceuticals.
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