Christopher L Hernandez

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The in vitro cloning of DNA molecules traditionally uses PCR amplification or site-specific restriction endonucleases to generate linear DNA inserts with defined termini and requires DNA ligase to covalently join those inserts to vectors with the corresponding ends. We have used the properties of Vaccinia DNA topoisomerase I to develop a ligase-free(More)
In an attempt to clarify the function of l-aspartic acid and culture conditions in aspartate ammonia lyase induction, experiments were carried out on aspartase formation in Bacillus cereus cells. The enzyme was produced by microorganisms in response to l-aspartic acid, which is catabolized by direct deamination to fumarate. Enzyme synthesis by B. cereus was(More)
Large neutral amino acid transporter 1 (LAT1) is a solute carrier protein located primarily in the blood-brain barrier (BBB) that offers the potential to deliver drugs to the brain. It is also up-regulated in cancer cells, as part of a tumor's increased metabolic demands. Previously, amino acid prodrugs have been shown to be transported by LAT1. Carboxylic(More)
Acoustic cavitation (i.e. acoustically stimulated microbubble activity) has gained interest in the biomedical community due to its ability to locally concentrate mechanical forces inside the body. Biological structures in close proximity experience stresses that temporally disrupt their normal function and allow passage of material that would otherwise be(More)
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