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Four New DNA Letters Double Life’s Alphabet
Scientific American ^ | February 22, 2019 | Matthew Warren, Nature magazine

Posted on 02/27/2019 5:29:17 PM PST by Tolerance Sucks Rocks

click here to read article


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To: LibertyOh

We have a committee at my University that is in charge of reviewing this type of research. This $hit scares the poo out of me, for good reason.


41 posted on 02/27/2019 9:45:38 PM PST by Do the math (Do the math./)
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To: MortMan; Fungi

Synthetic can mean unnatural, or merely unnaturally produced.

Commercial M-S-M is synthesized by a patented process, but it is chemically identical to naturally-derived M-S-M.


42 posted on 02/27/2019 11:29:42 PM PST by YogicCowboy ("I am not entirely on anyone's side, because no one is entirely on mine." - J. R. R. Tolkien)
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To: Tolerance Sucks Rocks

I’m hoping this doesn’t lead to monsters. It sounds like this could lead to monsters. I’m not a big fan of monsters.


43 posted on 02/28/2019 12:20:03 AM PST by catbertz
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To: Tolerance Sucks Rocks

1/2 man, 1/2 bear, and 1/2 pig. Manbearpig.


44 posted on 02/28/2019 12:55:20 AM PST by jim_trent
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To: Fungi

Re: “Why do you need synthetic base pairs?”

Because all the natural base pairs eventually try to kill you!


45 posted on 02/28/2019 12:56:16 AM PST by zeestephen
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To: LukeL

Many proteins are helped along by chaperone proteins that help them to fold properly. The chaperones are usually of the heat shock protein (hsp) class.

Misfolding of proteins happens frequently. Those proteins are recognized early on by other proteins that target the misfolded proteins for destruction. Prions are misfolded proteins that elude the destruction process. As a result, they build up slowly and eventually cause problems.


46 posted on 02/28/2019 4:04:33 AM PST by exDemMom (Current visual of the hole the US continues to dig itself into: http://www.usdebtclock.org/)
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To: LukeL

Current belief is that a prion is a misfolded protein like structure which causes disease...but a misfolded protein is not necessarily a prion.


47 posted on 02/28/2019 4:07:50 AM PST by Getready (Wisdom is more valuable than gold and diamonds, and harder to find.5)
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To: Tolerance Sucks Rocks
Well, it’s actually seven letters.

Um, don’t you mean five letters, G, A, T, C, and U?

48 posted on 02/28/2019 4:10:28 AM PST by exDemMom (Current visual of the hole the US continues to dig itself into: http://www.usdebtclock.org/)
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To: grey_whiskers

The interactions of proteins with nucleic acids are varied and complex. If the alternate bases were bound to phosphorylated ribose or dideoxyribose, no doubt some of the proteins would interact without a problem. But I think there would have to be a huge effort to make a system where these new bases could be used to code for proteins or functional RNAs. To make functional novel biomolecules is not currently possible, I think, since we still have such a long way to go to tie structure to function to the point that we could design new functional molecules de novo.

I do see some potential here, for example to create functional bacteria that can only grow using the artificial bases, which do not have the ability to synthesize those bases. They could be used to produce drugs or break down toxins, with far less concern that they could escape into the environment.


49 posted on 02/28/2019 4:25:35 AM PST by exDemMom (Current visual of the hole the US continues to dig itself into: http://www.usdebtclock.org/)
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To: Tolerance Sucks Rocks

One wonders if these guys can even keep a straight face.

“...there is nothing particularly ‘magic’ or special about those four chemicals that evolved on Earth...Benner first created ‘unnatural’ bases in the 1980s.”


50 posted on 02/28/2019 4:35:27 AM PST by 21twelve (!)
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To: Tolerance Sucks Rocks

This is the first step toward the Zombie Apocalypse.


51 posted on 02/28/2019 4:39:09 AM PST by NorthMountain (... the right of the peopIe to keep and bear arms shall not be infringed)
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To: exDemMom

Another issue then is one of binding energies and relative affinities, to ensure error-free coding.
Oh yes, and chirality.


52 posted on 02/28/2019 5:23:07 AM PST by grey_whiskers (The opinions are solely those of the author and are subject to change with out notice.)
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To: exDemMom

Another issue then is one of binding energies and relative affinities, to ensure error-free coding.
Oh yes, and chirality.


53 posted on 02/28/2019 5:23:11 AM PST by grey_whiskers (The opinions are solely those of the author and are subject to change with out notice.)
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To: StayAt HomeMother; Ernest_at_the_Beach; 1ofmanyfree; 21twelve; 24Karet; 2ndDivisionVet; 31R1O; ...
Thanks Tolerance Sucks Rocks.

54 posted on 03/02/2019 2:58:24 PM PST by SunkenCiv (and btw -- https://www.gofundme.com/for-rotator-cuff-repair-surgery)
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To: hoagy62; gattaca

That’s going to play hell with the movie “GATTACA”.

Gattaca will have to change Freeper names.


55 posted on 03/02/2019 7:01:50 PM PST by Redcitizen
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To: Redcitizen

LOL


56 posted on 03/03/2019 12:38:54 AM PST by gattaca ("Government's first duty is to protect the people, not run their lives." Ronald Reagan)
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To: Tolerance Sucks Rocks

If there are mystery strands of genetic DNA, Ancient Aliens theorists say Yes, they are from extraterrestrials.

‘cue up the Michael Tsooucalos picture.


57 posted on 03/09/2019 2:24:11 PM PST by wildbill
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To: exDemMom; Stosh

No. Please read Stosh’s #21, and you’ll see what I meant.


58 posted on 03/10/2019 1:34:54 AM PST by Tolerance Sucks Rocks (Modern feminism: ALL MEN BAD!!!)
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To: Tolerance Sucks Rocks

I do not count nucleotides that have only been produced in a lab as part of the nucleic acid alphabet.

We have been using inosine in DNA sequencing for decades to help with “reading” difficult regions (for instance, those with a high GC content). But I do not know anyone who counts inosine as one of the nucleic acid letters.

While the artificial nucleotides might have utility in research, since they do not have biological function (at least within the DNA/RNA systems), they should not count as letters.


59 posted on 03/10/2019 7:01:27 AM PDT by exDemMom (Current visual of the hole the US continues to dig itself into: http://www.usdebtclock.org/)
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