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Nanorobot hand made of DNA grabs viruses for diagnostics and blocks cell entry

Science Daily: Pharmacology News

A tiny, four-fingered 'hand' folded from a single piece of DNA can pick up the virus that causes COVID-19 for highly sensitive rapid detection and can even block viral particles from entering cells to infect them, researchers report.

DNA 305
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Ancient Viruses Might Be Spurring Modern-Day Cancers

Drugs.com

FRIDAY, July 19, 2024 -- Cancer growth can be fueled by flecks of ancient viral DNA lodged into the genetics of modern humans, a new study says.Overall, about 8% of the human genome is made of bits of DNA left behind by viruses that infected our.

Virus 278
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Engineering viruses to kill deadly pathogens

Science Daily: Pharmacology News

In the new study, researchers successfully modified DNA from four types of phages to kill a deadly pathogen. Antimicrobial resistance is an urgent and growing global crisis. Researchers are exploring phages, viruses that infect bacteria, as a possible solution.

Virus 308
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Ancient DNA reveals how a chicken virus evolved to become more deadly

SCIENMAG: Medicine & Health

An international team of scientists led by geneticists and disease biologists from the University of Oxford and LMU Munich have used ancient DNA to trace the evolution of Marek’s Disease Virus (MDV). This global pathogen causes fatal infections in unvaccinated chickens and costs the poultry industry over $1 billion per year.

DNA 67
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Using a Function-First “Scout Fragment”-Based Approach to Develop Allosteric Covalent Inhibitors of Conformationally Dynamic Helicase Mechanoenzymes

Covalent Modifiers

3c10581 Helicases, classified into six superfamilies, are mechanoenzymes that utilize energy derived from ATP hydrolysis to remodel DNA and RNA substrates. Kapoor Journal of the American Chemical Society 2024 DOI: 10.1021/jacs.3c10581 Therefore, helicases are important targets for chemical probes and therapeutics.

RNA 208
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Researchers engineer in vivo delivery system for prime editing, partially restoring vision in mice

Broad Institute

Williams January 8, 2024 Credit: Susanna Hamilton, Broad Communications Researchers have developed virus-like particles that can deliver gene-editing cargo to cells, including those in the mouse brain. Prime editing, described in 2019 by Liu’s group, can make longer and more diverse types of DNA changes than other types of editing.

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Chemoproteomics Identifies State-Dependent and Proteoform-Selective Caspase-2 Inhibitors

Covalent Modifiers

By combining both gel-based activity-based protein profiling (ABPP) and a tobacco etch virus (TEV) protease activation assay, we then identify covalent lead compounds that react preferentially with this cysteine and afford a complete blockade of caspase-2 activity.