• Speaking of chirality - "mirror cell" could be a majorn threat

    From Pro Plyd@21:1/5 to All on Sat Dec 21 22:26:31 2024
    Great idea for a sci fi story. Like Andromeda Strain.

    Or

    https://en.wikipedia.org/wiki/Ice-nine

    https://en.wikipedia.org/wiki/Polywater

    Other related links here

    <https://news.google.com/stories/CAAqNggKIjBDQklTSGpvSmMzUnZjbmt0TXpZd1NoRUtEd2lwZ0xqeURCRWhCb2xna2Ewck9DZ0FQAQ?hl=en-US&gl=US&ceid=US%3Aen>

    https://www.yahoo.com/news/scientist-working-create-mirror-life-013650643.html Updated December 20, 2024

    A scientist working to create 'mirror life'
    discovered it could be 'a perfect bioweapon.'
    She's asking other researchers to stop.

    * A mirror microorganism could end up being a
    major pathogen since immune systems wouldn't
    notice it.

    * Mirror-image biology inverts a fundamental
    property of life on Earth: which way molecules
    point.

    ...
    Mirror biology takes a fundamental rule of
    life on Earth, called chirality, and flips it.

    Chirality is the simple fact that molecules —
    like sugars and amino acids — point in one of
    two directions. They are either right-handed
    or left-handed.

    For some reason, though, life uses only one
    chiral form of each molecule. DNA, for example,
    uses only right-handed sugars for its backbone.
    That's why it twists to the right.

    In mirror biology, scientists aim to create
    living cells where all the chirality is flipped.
    Where natural life uses a right-handed peptide
    to build proteins, mirror life would use the
    same peptide in its left-handed form.
    ...
    A mirror pathogen "doesn't interact with the
    host," Adamala said. "It just uses it as a warm
    incubator with a lot of nutrients."

    If a mirror bacteria escaped the lab, it could
    cause slow, persistent infections that couldn't
    be treated with antibiotics (because those,
    too, rely on chirality).

    Because they wouldn't face immune resistance,
    mirror bacteria wouldn't need to specialize in
    infecting corn, or goats, or birds.

    "It would be a disease of anything that lives
    that can be infected," Adamala said.

    In the worst-case scenario, a mirror bacteria
    would multiply endlessly, unfettered. It would
    take over its hosts and eventually kill them.
    It would destroy crops. It would have no
    predators. It would overwhelm entire
    ecosystems, swapping out portions of our
    natural world for a new mirror world.
    ...

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Mark Isaak@21:1/5 to Pro Plyd on Sun Dec 22 18:25:35 2024
    On 12/21/24 9:26 PM, Pro Plyd wrote:

    Great idea for a sci fi story. Like Andromeda Strain.

    Or

    https://en.wikipedia.org/wiki/Ice-nine

    https://en.wikipedia.org/wiki/Polywater

    Other related links here

    <https://news.google.com/stories/ CAAqNggKIjBDQklTSGpvSmMzUnZjbmt0TXpZd1NoRUtEd2lwZ0xqeURCRWhCb2xna2Ewck9DZ0FQAQ?hl=en-US&gl=US&ceid=US%3Aen>

    https://www.yahoo.com/news/scientist-working-create-mirror- life-013650643.html
    Updated December 20, 2024

    A scientist working to create 'mirror life'
    discovered it could be 'a perfect bioweapon.'
    She's asking other researchers to stop.

    * A mirror microorganism could end up being a
    major pathogen since immune systems wouldn't
    notice it.

    * Mirror-image biology inverts a fundamental
    property of life on Earth: which way molecules
    point.

    ...
    Mirror biology takes a fundamental rule of
    life on Earth, called chirality, and flips it.

    Chirality is the simple fact that molecules —
    like sugars and amino acids — point in one of
    two directions. They are either right-handed
    or left-handed.

    For some reason, though, life uses only one
    chiral form of each molecule. DNA, for example,
    uses only right-handed sugars for its backbone.
    That's why it twists to the right.

    In mirror biology, scientists aim to create
    living cells where all the chirality is flipped.
    Where natural life uses a right-handed peptide
    to build proteins, mirror life would use the
    same peptide in its left-handed form.
    ...
    A mirror pathogen "doesn't interact with the
    host," Adamala said. "It just uses it as a warm
    incubator with a lot of nutrients."

    If a mirror bacteria escaped the lab, it could
    cause slow, persistent infections that couldn't
    be treated with antibiotics (because those,
    too, rely on chirality).

    Because they wouldn't face immune resistance,
    mirror bacteria wouldn't need to specialize in
    infecting corn, or goats, or birds.

    "It would be a disease of anything that lives
    that can be infected," Adamala said.

    In the worst-case scenario, a mirror bacteria
    would multiply endlessly, unfettered. It would
    take over its hosts and eventually kill them.
    It would destroy crops. It would have no
    predators. It would overwhelm entire
    ecosystems, swapping out portions of our
    natural world for a new mirror world.
    ...

    Possibly that's what happened, and we are living in the result.

    --
    Mark Isaak
    "Wisdom begins when you discover the difference between 'That
    doesn't make sense' and 'I don't understand.'" - Mary Doria Russell

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)