Publications by authors named "Adrian Mejia-Santana"

Disulfide bond formation has a central role in protein folding of both eukaryotes and prokaryotes. In bacteria, disulfide bonds are catalyzed by DsbA and DsbB/VKOR enzymes. First, DsbA, a periplasmic disulfide oxidoreductase, introduces disulfide bonds into substrate proteins.

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Bacterial species from diverse phyla contain multiple replicons, yet how these multipartite genomes are organized and segregated during the cell cycle remains poorly understood. has a 2.8-Mb circular chromosome (Ch1), a 2.

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Antimicrobial resistance is one of the greatest global health challenges today. For over 3 decades, antibacterial discovery research and development have been focused on cell-based and target-based high-throughput assays. Target-based screens use diagnostic enzymatic reactions to look for molecules that can bind directly to and inhibit the target.

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causes the gastrointestinal illness cholera, which spreads throughout the globe in large pandemics. The current pandemic is caused by O1 El Tor biotype strains, whereas previous pandemics were caused by O1 classical biotype strains. El Tor is noted for its ability to acquire exogenous DNA through chitin-induced natural transformation, which has been exploited for genetic manipulation of El Tor strains in the laboratory.

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New cloning vectors have been developed with features to enhance quick allelic exchange in gram-negative bacteria. The conditionally replicative R6K and transfer origins facilitate conjugation and chromosomal integration into a variety of bacterial species, whereas the gene provides counterselection for allelic exchange. The vectors have incorporated the alpha fragment with an enhanced multicloning site for easy blue/white screening and priming sites identified for efficient  assembly or other DNA assembly cloning techniques.

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