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Science

Scientists Confirmed a New DNA Structure Inside Human Cells (sciencealert.com) 36

Trax3001BBS quotes Science Alert: For the first time, scientists have identified the existence of a new DNA structure never before seen in living cells. The discovery of what's described as a "twisted knot" of DNA in living cells confirms our complex genetic code is crafted with more intricate symmetry than just the double helix structure everybody associates with DNA -- and the forms these molecular variants take affect how our biology functions...

"It seems likely that they are there to help switch genes on or off," according to Garvan's Mahdi Zeraati, the first author of the new study, "and to affect whether a gene is actively read or not."

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Scientists Confirmed a New DNA Structure Inside Human Cells

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  • Thanks, /. (Score:5, Interesting)

    by GerryGilmore ( 663905 ) on Saturday April 28, 2018 @06:46PM (#56521141)
    This is exactly the type of article that keeps you my home page, despite the cesspool the comments section can become when social/cultural issues are involved.
    Here, pure-ass geekdom. Ahhhh....
  • Interchange (Score:5, Funny)

    by arth1 ( 260657 ) on Saturday April 28, 2018 @06:49PM (#56521155) Homepage Journal

    - Hey, little piece of DNA, can you tell us what you're for?
    - I'm a frayed knot...

  • It's obviously the documentation. The reason it hasn't been found until now is because nobody was looking for it.

  • ... an impedance matching stub for an implanted mind control receiver.

  • Not Symmetric (Score:5, Insightful)

    by DERoss ( 1919496 ) on Saturday April 28, 2018 @08:42PM (#56521541)

    The article says: "a "twisted knot" of DNA in living cells confirms our complex genetic code is crafted with more intricate symmetry". Knots are never symmetric. They are either right-handed or left-handed.

    • The article says: "a "twisted knot" of DNA in living cells confirms our complex genetic code is crafted with more intricate symmetry". Knots are never symmetric. They are either right-handed or left-handed.

      Right - they should have said "more intricate geometry".

    • I guess you never knotted to strings together ...

    • by Whibla ( 210729 )

      Knots are never symmetric. They are either right-handed or left-handed.

      Rotational symmetry is still symmetry. This knot [wikipedia.org], like many, more complicated others, has rotational symmetry.

      As another poster has already pointed out the second statement above is also incorrect. This page [wikipedia.org] gives more information regarding symmetry / handedness in knots.

  • Slashdot is full of stale perspectives. It's a collection of has-beens and Russian bots.

    In Russia, DNA tangles YOU!

    This is called itrDNA - "Interfering Tangled Russian DNA". The effect was uncovered by measuring expression levels of the YUGE gene. See the companion papers "Long Term Silencing of MULLER With An siRNA Expression Vector" and "YUGE Is Regulated By Russians" in Nature Genetics.

    Short version is that YUGE is influenced by the "Russian" interference. The itrDNA upregulates the production of an siRNA (YUGE) that specifically "colludes" with a not-fully-understood protein called FAKE.

Logic is the chastity belt of the mind!

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