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This Enigmatic Protein Sculpts DNA to Repair Harmful Damage

Sometimes, when something is broken, the first step to fixing it is to break it even more. Scientists have discovered this is the case for a human DNA repair protein that functions by marking and then further breaking damaged DNA. Their surprising findings have provided much-needed insight into how DNA repair works in healthy cells, as well as how different mutations can translate into different diseases and cancer.

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Off the Scales: Fish Armor Both Tough and Flexible

Humans have drawn technological inspiration from fish scales going back to ancient times: Romans, Egyptians, and other civilizations would dress their warriors in scale armor, providing both protection and mobility. Now, using advanced X-ray imaging techniques, Berkeley Lab scientists have characterized carp scales down to the nanoscale, enabling them to understand how the material is resistant to penetration while retaining flexibility.