Key Highlights
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A new method called TT-TSS-seq has been developed to precisely map where genes start being copied into RNA, even for unstable RNA molecules. This advancement provides a clearer picture of how gene activity is controlled and offers a new tool for studying gene regulation.
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When a cellular recycling enzyme called DBR1 is missing, leftover pieces of RNA called intron lariats build up and form double-stranded structures that can interfere with the cell’s antiviral defenses. This discovery explains why cells lacking DBR1 are more susceptible to viral infections and reveals how our own RNA can accidentally trigger immune responses.
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Researchers have found that the sugar chains (glycans) attached to proteins on the cell surface physically block the machinery that pulls those proteins into the cell, rather than repelling it electrically. This suggests cells can use sugar coatings as a simple timer to control how long signaling proteins stay active on their surface.
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A landmark 1985 study first showed that viruses can make their cellular machinery “slip” while reading their genetic code, a trick called programmed ribosomal frameshifting. This foundational discovery later inspired scientists to search for and find the same phenomenon occurring naturally in animals, including humans.
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