The OSIRIS-REx mission returned a large sample from asteroid Bennu, which Japanese collaborators detected includes all five nucleobases required for life. The analysis revealed high concentrations of ammonia and nitrogen-rich organic matter.
Scientists have detected uracil and nicotinic acid in asteroid Ryugu samples collected by the Hayabusa2 spacecraft. The discovery suggests that important building blocks for life were created in space and delivered to Earth via meteorites, supporting current theories on the source of nucleobases.
Scientists at Kyoto University developed two methods to identify RNA modifications impacting gene regulation and disease. Their approach uses probability algorithms with high-throughput sequencing technology, distinguishing pseudouridine substitutions from other base changes.
Researchers created a new cost-effective instrument combining mass spectrometry and thermal desorption to study uracil's molecular dynamics. The technique provides insights into mechanistic principles that could inform better medicines and optimize photo-dynamic therapies.
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Researchers found that protons can transfer without hydrogen bonds, involving significant rearrangements of molecular fragments. Methyl groups on uracil dimers played a crucial role in enabling this process.
Researchers have identified a new class of DNA repair enzymes that lack uracil repair capabilities, instead repairing adenine damage. This discovery provides insights into the diversity of DNA repair functions and highlights the importance of interdisciplinary collaboration in scientific discovery.