Key Highlights
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A landmark 1985 study first showed that viruses can force the cell’s protein-building machinery to “slip” and read their genetic code in a different way, a process called programmed ribosomal frameshifting. This discovery, which was first seen in viruses, later inspired scientists to search for and find the same phenomenon in more complex animals like vertebrates.
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Researchers have created a new dynamic benchmark, called DynaBench, to better test how well computer models can predict how two molecules, like a drug and its target, fit together. This tool accounts for the natural flexibility of molecules, which is a major challenge for accurate computer-aided drug design.
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In a fungus that causes plant disease, scientists discovered a new quality control system that helps the cell’s nucleus recover from stress. When stressed, the cell uses special “chaperone” proteins to separate damaged parts of the nucleolus (a key structure inside the nucleus) from healthy parts during cell division. This reveals a new way cells maintain the health of their internal, membrane-less structures, especially in cells with multiple nuclei.
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A cellular complex called PP2A-B55α acts as a switch that determines how a powerful cancer-promoting protein, c-Myc, gets broken down. This resolves a long-standing puzzle in cancer biology about how the same tumor suppressor can both mark c-Myc for destruction and, under different conditions, help it evade destruction.
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The bacteria Pseudomonas aeruginosa changes which genes it turns on based on both its growth stage and the temperature of its environment. This interplay is crucial for understanding how this common and often harmful pathogen adapts to different conditions, such as those inside the human body during an infection.
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