A fragment of 1.539 pb of the gene homologous to gspD of Hardjobovis was clonated in the pET28a vector and it was transformed into E. coli C43 and Rosetta strains. The sequence of GspD(L) showed 46 % of similitude with E. coli GspD secretin. The expression of recombinant GspD(L) was obtained in Rosetta strain.
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The Stenotrophomonas maltophilia L2 cephalosporinase is one of two beta-lactamases which afford S. maltophilia beta-lactam resistance. With the overuse of beta-lactams, selective pressures have contributed to the evolution of these proteins, generating proteins with an extended spectrum of activity.
View Article and Find Full Text PDFFood Funct
January 2025
Key Laboratory for Space Bioscience and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, 710072, Shaanxi, People's Republic of China.
Inflammatory bowel disease (IBD) is a chronic inflammation with a high incidence rate. Many probiotics, including (), have shown promise in IBD treatment. The therapeutic effects of most probiotics are greatly decided by the available live cells in the disease lesion, which is compromised as they pass through the gastric juice and intestinal tract, resulting in a loss of activity.
View Article and Find Full Text PDFJ Vis Exp
December 2024
Institute for Biological and Medical Engineering, Pontificia Universidad Católica de Chile;
Plasmids play a vital role in synthetic biology by enabling the introduction and expression of foreign genes in various organisms, thereby facilitating the construction of biological circuits and pathways within and between cell populations. For many applications, maintaining functional plasmids without antibiotic selection is critical. This study introduces an open-hardware-based microfluidic workflow for analyzing plasmid retention by culturing single cells in gel microdroplets and quantifying microcolonies using fluorescence microscopy.
View Article and Find Full Text PDFBiophys Physicobiol
September 2024
Faculty of Pharmaceutical Sciences, Hokkaido University of Science, Sapporo, Hokkaido 006-8585, Japan.
Biolayer interferometry (BLI) is an optical sensor-based analytical method primarily used for analyzing interactions between biomolecules. In this study, we explored the application of BLI to observe the cleavage reaction of glutathione S-transferase (GST)-tagged fusion protein by human rhinovirus (HRV) 3C protease on a BLI sensor as a new application of the BLI method. The soluble domain of the Tic22 protein from was expressed and purified as a GST-tagged fusion protein, GST-Tic22, in .
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January 2025
School of Life Sciences, Anhui Agricultural University, Hefei, People's Republic of China.
UhpAB increases the pathogenicity of APEC.UhpAB activates the expression of virulence genes , , , and .UhpAB promotes biofilm formation and enhances stress tolerance.
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