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Greenpeace USA

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Chemist Floyd Romesberg of the Scripps Research Institute in La Jolla, California, and his colleagues manipulated Escherichia coli bacterial cells to incorporate two types of foreign chemical bases, or letters, into their DNA. The cells then used that information to insert unnatural amino acids into a fluorescent protein.

These form pairs that hold together DNA’s double helix, and different three-letter sequences code for each of the 20 amino acids that make up the proteins in living cells.

The new work is the first to show that unnatural bases can be used to make proteins within a living cell. These “Funny” DNA letters, as Benner has called them, could replicate and make RNA and proteins in test-tube reactions.

To function in living cells the foreign base pairs need to sit alongside natural bases without disturbing the shape of DNA or disrupting essential tasks, such as the processes that faithfully copy DNA and transcribe it into messenger RNA-an intermediary molecule between DNA and proteins.

The ‘alien DNA’ was made of chemicals called dNaM and d5SICS. But the cells divided sluggishly, and tended to lose their foreign DNA over time.

In the latest research, reported in Nature on November 29, the team created healthy cells that can finally wield their foreign DNA. In separate experiments, the cells incorporated two unnatural amino acids into a protein that emits a soft, green glow.


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Post Author: Maria Temming

25 thoughts on “Greenpeace USA

    Barry Uberlis

    (January 23, 2018 - 8:19 pm)

    Stop crying, you want a country not dependent of foreign oil, where else you are going to find it.
    New technology is safer, more jobs.
    How many of you have been there or even heard about it before the snowflakes began beaching about it?

    Mark Bayne

    (January 23, 2018 - 8:19 pm)

    Land stolen under Obama is being returned to it’s rightful ownership. Sorry, that’s how it should be. Keep whining. Keep losing.

    Angelo Cacchione

    (January 23, 2018 - 8:19 pm)

    Just let him , with time or next president it will go back to normal , solar is getting cheaper by the year and with Tesla involved most will follow suit

    Joseph Argentiero

    (January 23, 2018 - 8:19 pm)

    This post mentioned every modern buzz word that is use today. Smells like liberalism at its finest.
    AKA, one sided view being shoveled down our throats.

    James Rodney

    (January 23, 2018 - 8:19 pm)

    Short term gains … anything for a “win”.

    Creating economic growth by destroying precious ecosystems is like lighting your house on fire because you are a little chilly. Sad.

    Jim Ellefson

    (January 23, 2018 - 8:19 pm)

    So this is a political page now. It’s supposed to be about science.
    I’m leaving this group if I see more of this. There are plenty of other groups that stick to their charter.

    Schalk Scheepers

    (January 23, 2018 - 8:19 pm)

    So not only don’t America believe in climate change, they embrace the further destruction of our planet. I say “America, cause the people voted for him”. Well done !!

    Linda Pickenpaugh

    (January 23, 2018 - 8:19 pm)

    He is returning those lands to the state and taking them out of federal hands.

    Molnár Gábor

    (January 23, 2018 - 8:19 pm)

    Sorry but nothing new in it… in the Us you just care about the profit…
    Man! Just look around…
    How can the government sad: the water from the rains is belongs to them…. in there you forget the nation is the government…. but you mixid up that thing… now everything means about the big companies….
    Oh and before you start to complain I would ask you: why are you woted for an idiot…

    Ameal Jones

    (January 23, 2018 - 8:19 pm)

    Can’t blame Obama, white folks been stealing land from all around the world. The white government officials and politicians sold America out during president Nixon, Carter, Johnson, Bush, bitch ass Reagan and Clinton

    Michael Willis

    (January 23, 2018 - 8:19 pm)

    I’d rather them drill on land than in the water

    Bobbi Ace

    (January 23, 2018 - 8:19 pm)

    The people of America don’t care that the cooperations are the ones running this country. They’re perfectly fine being used as a money signs and being confined to concrete walls and no trees. its cool we’ll get to a full concrete jungle one day, then we can shut up and be the zombies we need to be!!

    Patrick Sullivan

    (January 23, 2018 - 8:19 pm)

    Was part of the state. Again part of the state. Citizens of the state will take good care of it like they had before.

    Angelo Reyes

    (January 23, 2018 - 8:19 pm)

    Radical Liberal News

    David Hatton

    (January 23, 2018 - 8:19 pm)

    No, Trump is leaving it in the state hands were belongs, the fed is corrupt and are idiots. Leave public lands in the states hands Where are the people can control it.

    Guy La Pierre

    (January 23, 2018 - 8:19 pm)

    Let’s be practical – which Senator demanded this action in return for their vote supporting the Tax bill

    Cory Predmore

    (January 23, 2018 - 8:19 pm)

    Liberal crying post. I love it.
    Obama stole the land, Trump returned it to the people.

    Chance Coulombe

    (January 23, 2018 - 8:20 pm)

    sorry but unesed land does nothing for us. mine it drill it and make some money and jobs

    Rajeev Sachdev

    (January 23, 2018 - 8:20 pm)

    He probably plans to make a hotel there!

    Kevin Wright

    (January 23, 2018 - 8:20 pm)

    Trump is doing the right thing. Time to flush Agenda 21!

    Bob Ference

    (January 23, 2018 - 8:20 pm)

    If the government needs to take land…why not Detroit?

    Randall Cedeno

    (January 23, 2018 - 8:20 pm)

    These lands should stay protected.

    Jason Parks

    (January 23, 2018 - 8:20 pm)

    Viet Nguyen

    (January 23, 2018 - 8:20 pm)

    The big problem is not Trump. He’s just one tiny little man. The problem is that you Americans let him do it. He’s just a President, he’s not God

    Jimmy Ray Sabbath

    (January 23, 2018 - 8:20 pm)

    Stop lying to these folks.

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