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Screening to isolate Bacillus subtilis mutants with enhanced NADPH levels.
J Gen Appl Microbiol
January 2025
Department of Science, Technology and Innovation, Kobe University.
As the first step toward understanding how NADPH levels are regulated in Bacillus subtilis, we sought to obtain mutant strains with enhanced NADPH levels. Our previous study demonstrated that in a strain of B. subtilis expressing bacterial luciferase derived from Photorhabdus luminescens, artificially enhancing NADPH levels enhanced luciferase luminescence in the colonies.
View Article and Find Full Text PDFWF2020 isolated from fermented pickles promotes longevity and health in JNK and p38 MAPK pathways.
Food Funct
January 2025
Guangdong Provincial Key Laboratory of Nutraceuticals and Functional Foods, College of Food Science, South China Agricultural University, Guangzhou 510642, China.
, a potential probiotic for use in food and feed production, can exert anti-aging effects in a strain-specific manner. However, the molecular mechanisms underlying its anti-aging effects remain poorly understood. This study explored the effects of WF2020 (WF2020), isolated from Chinese fermented pickles, on longevity and health and investigated the underlying mechanisms in .
View Article and Find Full Text PDFDiscovery and mechanistic exploration of promiscuous xylosyltransferase based on protein engineering.
Int J Biol Macromol
January 2025
National Resource Center for Chinese Meteria Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China; State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Beijing 100700, China.
Glycosylation is an effective means to alter the structure and properties of plant compounds, influencing the pharmacological activity of natural products (NPs) to obtain highly active NPs. In nature, glucosides are the most widely distributed, while other glycosides such as xylosides are less common and present in lower quantities. This is due to the scarcity of xylosyltransferases with substrate promiscuity in nature, and the modification of their catalytic function is also quite challenging.
View Article and Find Full Text PDFLong-term evaluation in BALBc mice of a triple mutant of Mycobacterium bovis and the Bacillus Calmette-Guérin as potential vaccines against bovine tuberculosis.
Vet Microbiol
January 2025
Instituto de Agrobiotecnología y Biología Molecular, (IABIMO) INTA-CONICET, Argentina; Instituto de Biotecnología, CICVyA, Instituto Nacional de Tecnología Agropecuaria, N. Repetto and De los Reseros, Hurlingham, Buenos Aires 1686, Argentina. Electronic address:
There is currently no commercial vaccine available against bovine tuberculosis (bTB). Mycobacterium bovis is the primary causative agent of bTB and is closely related to Mycobacterium tuberculosis, the pathogen responsible for human TB. Despite their limitations, mouse models are invaluable in early vaccine development due to their genetic diversity, cost-effectiveness, and the availability of research tools.
View Article and Find Full Text PDFEngineered Phage Enables Efficient Control of Gene Expression upon Infection of the Host Cell.
Int J Mol Sci
December 2024
CAS Key Laboratory for Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.
Recently, we developed a spatial phage-assisted continuous evolution (SPACE) system. This system utilizes chemotaxis coupled with the growth of motile bacteria during their spatial range expansion in soft agar to provide fresh host cells for iterative phage infection and selection pressure for preserving evolved genes of interest carried by phage mutants. Controllable mutagenesis activated only in a subpopulation of the migrating cells is essential in this system to efficiently generate mutated progeny phages from which desired individuals are selected during the directed evolution process.
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