Amyloid plaques, a hallmark of diseases like Alzheimer’s, are bad news for humans – but they could have been drivers of the earliest life on Earth. A new study shows that these amyloid clusters can behave as catalysts, backing a theory that they helped trigger the reactions that sustain life, long before modern enzymes appeared. Image: euthman
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To survive in frigid polar regions, many cold-blooded creatures employ a natural antifreeze to protect themselves from the damage that large ice crystals would cause. These antifreeze molecules lock onto ice crystals, but not liquid water – though how they do this has been a mystery. Image: derekkeats
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Proteins can change their structure at very high speed – now X-ray pulses have been used to...
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A mimic of the potent proteins used by white blood cells to punch holes in bacteria is to begin...
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