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IMAGE: An illustration of tailocins, and their altruistic action painted by author Vivek Mutalik s daughter, Antara. Image:  Antara Mutalik Imagine there are arrows that are lethal when fired on your enemies yet harmless if they fall on your friends. It s easy to see how these would be an amazing advantage in warfare, if they were real. However, something just like these arrows does indeed exist, and they are used in warfare . just on a different scale. These weapons are called tailocins, and the reality is almost stranger than fiction. Tailocins are extremely strong protein nanomachines made by bacteria, explained Vivek Mutalik, a research scientist at Lawrence Berkeley National Laboratory (Berkeley Lab) who studies tailocins and phages, the bacteria-infecting viruses that tailocins appear to be remnants of. They look like phages but they don t have the capsid, which is the head of the phage that contains the viral DNA and replication machinery. So, they re like a sprin

United statesAdam arkinVivek mutalikLawrence berkeley national laboratory labBerkeley labBerkeley lab biosciences areaLawrence berkeley national laboratoryBiosciences areaNetworks integratedMolecular assembliesScientific focusஒன்றுபட்டது மாநிலங்களில்பண்படாமனித இயல்பு அருகின்லாரன்ஸ் பெர்க்லி தேசிய ஆய்வகம் ஆய்வகம்பெர்க்லி ஆய்வகம்பெர்க்லி ஆய்வகம் உயிர் அறிவியல் பரப்பளவு