World-leading scientists have called for a halt on research to create “mirror life” microbes amid concerns that the synthetic organisms would present an “unprecedented risk” to life on Earth.

The international group of Nobel laureates and other experts warn that mirror bacteria, constructed from mirror images of molecules found in nature, could become established in the environment and slip past the immune defences of natural organisms, putting humans, animals and plants at risk of lethal infections.

Many molecules for life can exist in two distinct forms, each the mirror image of the other. The DNA of all living organisms is made from “right-handed” nucleotides, while proteins, the building blocks of cells, are made from “left-handed” amino acids. Why nature works this way is unclear: life could have chosen left-handed DNA and right-handed proteins instead.

The fresh concerns over the technology are revealed in a 299-page report and a commentary in the journal Science. While enthusiastic about research on mirror molecules, the report sees substantial risks in mirror microbes and calls for a global debate on the work.

  • Wahots@pawb.social
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    9 days ago

    Or do it offworld at least, wired up to a dead man’s switch connected to like…a nuke. Nobody infected can leave, and any localized research or pathogens are crisped and blown apart.

    Like, seriously, we only have this one green planet for potentially hundreds of light-years around us, which even at the speed of light would take us centuries to reach another earth-like world. We really cannot afford to damage this lifeboat in a vast sea of barren, rocky islands devoid of life, water, or food.

    Even climate change is mind boggling to think about, when you realize there’s no alternatives anywhere even close. Even with incredibly optimistic technology breakthroughs, we are still centuries away from travelling outside this solar system and making it to the next closest star system (light-years away).