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Scientists create first semi-synthetic organism with 'alien' DNA

 
grimloche
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05/09/2014 03:21 PM
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Scientists create first semi-synthetic organism with 'alien' DNA
The researchers believe the breakthrough is the first step towards creating new microbial life-forms with novel industrial or medical properties resulting from a potentially massive expansion of genetic information.

The semi-synthetic microbe, a genetically modified E. coli bacterium, has been endowed with an extra artificial piece of DNA with an expanded genetic alphabet – instead of the usual four “letters” of the alphabet its DNA molecule has six.


“Life on earth in all its diversity is encoded by only two pairs of DNA bases, A-T and C-G, and what we’ve made is an organism that stably contains those two plus a third, unnatural pair of bases,” said Professor Floyd Romesberg of the Scripps Research Institute in La Jolla, California.

“This shows that other solutions to storing information are possible and, of course, takes us closer to an expanded-DNA biology that will have many exciting applications, from new medicines to new kinds of nanotechnology,” Professor Romesberg said.

“In principle, we could encode new proteins made from new, unnatural amino acids, which would give us greater power than ever to tailor protein therapeutics and diagnostics and laboratory reagents to have desired functions,” Professor Romesberg said.

“Other applications, such as nanomaterials, are also possible,” he added.



[link to www.independent.co.uk]
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05/09/2014 03:22 PM
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Re: Scientists create first semi-synthetic organism with 'alien' DNA
Out with the old, in with the new...





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