Researchers identify enzyme that prevents chromosome breaks during DNA copying
Researchers at The University of Texas Medical Branch (UTMB) have identified how a key enzyme called ATR protects DNA from breaking when cells copy damaged genetic material, a discovery that could affect how certain cancer drugs are developed. Published in Genes & Development, the study shows how ATR helps stabilize the cell's DNA-copying machinery during replication stalls, preventing chromosomes from breaking.
The science section covers breakthroughs in medicine, physics, biology, and technology. We surface discoveries that expand what humanity can do, from new treatments reaching clinical trials to engineering feats that seemed impossible a decade ago. Every link goes to the original publisher so you can read the full study or press release yourself.
BY THE OPTIMIST DAILY EDITORIAL TEAM Letting your lawn grow wild in May to help bees and other pollinators? That’s the p…
BY THE OPTIMIST DAILY EDITORIAL TEAM When a cluster of hantavirus cases emerged aboard the M.V. Hondius, a Dutch polar e…
The SpaceX Falcon 9 rocket, carrying the Dragon cargo spacecraft atop, launched Friday, May 15, 2026, from Space Launch …
NASA/JPL-Caltech/MSSS After NASA’s Curiosity Mars rover drilled a sample from this rock on April 25, 2026, it withdrew i…