Smart interaction between proteins

Very little was known till now about DNA repair by homologous recombination, which is fundamental for human health. Now an ETH research group has for the first time isolated and studied all the key proteins involved in this ...

Molecular sensor scouts DNA damage and supervises repair

In the time it takes you to read this sentence, every cell in your body suffers some form of DNA damage. Without vigilant repair, cancer would run rampant, and now scientists at the University of Pittsburgh have gotten a ...

Neutral evolution shapes lifespan and aging

Different African killifish species vary extensively in their lifespans—from just a few months to several years. Scientists from the Max Planck Institute for Biology of Ageing in Cologne investigated how different lifespans ...

Researchers clock DNA's recovery time after chemotherapy

In the time it takes for an Amazon Prime delivery to arrive, cells damaged by chemotherapy can almost completely fix their most important DNA. That is the case in the livers of mice at least, according to a new study.

How a 'repair economy' creates a better community

John switches on the power saw he's bought secondhand on eBay. The machine "arcs—shooting out a visible electric charge. So he takes it apart to investigate. He identifies the problem: the field coil, a current-carrying ...

A new mechanism for accessing damaged DNA

UV light damages the DNA of skin cells, which can lead to skin cancer. But this process is counteracted by DNA repair machinery, acting as a molecular sunscreen. It has been unclear, however, how repair proteins work on DNA ...

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