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| Wired Science Reveals Secret Codes in Craig Venter's Artificial Genome |
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posted by williampiv
on Tuesday January 29, @12:29PM
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Wired Science has ferreted out the secret amino acid messages contained in "watermarks" that were embedded in the world's first manmade bacterial genome, announced last week by the J. Craig Venter Institute.
As Andy Pollack paraphrased Venter in the New York Times, "These watermarks, Dr. Venter noted, contain coded messages. Sleuths would have to determine the amino acid sequence coded for by the watermarks to decipher the message." Functionally, the watermarks distinguish the synthetic genome from its natural counterpart. The Genbank sequence for the modified Mycoplasma synthetic genome contains five of these watermarks, and speculation has flown about what they were, as Venter refused to disclose them to press.
In response to a phone call from Wired Science, David Wheeler and Tao Tao of the NCBI checked into the genetic sequence submitted by Venter's Institute and found the watermarks hidden in plain sight. For the first time, we reveal the five coded messages that will go down in history as embedded in the first synthetic genome ever created after the jump.
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| Viruses are engineered to attack bacteria |
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| Team builds viruses to combat harmful 'biofilms' |
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posted by williampiv
on Friday January 04, @11:12AM
from the Synthetic-Bio-ALERT dept.
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In one of the first potential applications of synthetic biology, an emerging field that aims to design and build useful biomolecular systems, researchers from MIT and Boston University are engineering viruses to attack and destroy the surface "biofilms" that harbor harmful bacteria in the body and on industrial and medical devices.
They have already successfully demonstrated one such virus, and thanks to a "plug and play" library of "parts" believe that many more could be custom-designed to target different species or strains of bacteria.
The work, reported in the July 3 Proceedings of the National Academy of Sciences, helps vault synthetic biology from an abstract science to one that has proven practical applications. "Our results show we can do simple things with synthetic biology that have potentially useful results," says first author Timothy Lu, a doctoral student in the Harvard-MIT Division of Health Sciences and Technology.
Bacterial biofilms can form almost anywhere, even on your teeth if you don't brush for a day or two. When they accumulate in hard to reach places such as the insides of food processing machines or medical catheters, however, they become persistent sources of infection.
These bacteria excrete a variety of proteins, polysaccharides, and nucleic acids that together with other accumulating materials form an extracellular matrix, or in Lu's words, a "slimy layer," that encases the bacteria. Traditional remedies such as antibiotics are not as effective on these bacterial biofilms as they are on free-floating bacteria. In some cases, antibiotics even encourage bacterial biofilms to form.
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| A Citizen Jury for Science |
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posted by williampiv
on Friday January 04, @11:11AM
from the Synthetic-Bio-ALERT dept.
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If we really want to engage the public with science, why not let them judge it?
This idea came up in conversation with Pat Mooney of the ETC Group in regards to an article I'm writing about the regulation of synthetic biology -- not just the "Will it kill us all?" angle, but how regulators and the public can shape this emerging field in a way that ensures its benefits to society.
Pat mentioned something I'd not heard about before: two years ago, the UK convened juries on nanotechnology. They brought together randomly picked people to grill nanotech researchers about what they were doing, how they were doing it, and what it all meant.
The scientists were initially skeptical, and understandably so. If I were a nanotech researcher at the time, I would have worried that discussions would be hijacked by overblown Gray Goo-type fears. But the conversations ended up being quite productive.
Scientists reassured the public that they wouldn't accidentally ruin the world. The public encouraged scientists and the government to take precautionary safety measures, and -- just as important -- to think about what sort of projects deserved high-priority funding, and how to make sure that the products would be accessible and affordable. The suggestions they made weren't legally binding, but they helped inform how nanotech research in the UK was conducted and guided.
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| Will Synthetic Biology Catch Government By Surprise? |
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posted by williampiv
on Friday January 04, @11:05AM
from the Synthetic-Bio-ALERT dept.
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Synthetic Biology - the emerging science of creating genomes, cellular components and even whole cellular organisms from scratch -- confronts regulators with some tricky problems. At the moment, the research and its products aren't exactly unregulated -- the NIH has rules for conducting biotech research, the FDA would still evaluate a drug made by synthetic organism, the EPA would oversee the potential release of synthetic organisms into the environment -- but it's not entirely clear whether synthetic biology could pose new, unexpected challenges.
As an analogy, take nanotechnology: on the nano scale, materials take on new, sometimes quantum physical properties, meaning they could pose unexpected health risks. Likewise, a genome built from scratch (and perhaps with new building blocks, beyond A, C, T and G) could be harder to evaluate than a well-known bacteria with a single gene tweak.
On the other hand, maybe current regulations are perfectly sufficient. The important thing is that regulators think about this now, because the field is exploding -- and, if a quick round of press office calls is anything to judge by, they're not. Press officers at the EPA, FDA and US Patent Office all had to ask what synthetic biology is. (The NIH officers weren't in the office, but the agency has at least hosted talks on possible bioterror applications. That's only a small aspect of synthetic biology regulation, but it's a start.)
Not that this means people at the various agencies haven't thought about synthetic biology (and the press people were very helpful about looking to see.) But at the very least there aren't any formal programs to consider regulatory approaches. This is troublesome in every case, but particularly so at the Patent Office, where an overly-broad approach to intellectual property -- for example, granting exclusive patents not just on a technique for building a genome that performs some function, but on the very idea of building a genome to do that function -- could stunt research.
I'm currently awaiting some calls back. Hopefully they'll tell me that, yes, they really have thought about all this....
Original Story Here.
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| We’re a step closer to creating a synthetic form of life |
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| DOE Invests $125 Million in Synthetic Life to Develop Biofuels |
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| MSU student team in competition with genetic engineering |
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posted by williampiv
on Friday January 04, @11:02AM
from the Synthetic-Bio-ALERT dept.
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Last year, nine graduate and undergraduate students genetically engineered E.-coli bacteria to glow green in the presence of hydrogen, providing a safe way to measure the hydrogen available in hard to probe places like fuel cells. They entered this new design in the International Genetically Engineered Machine, or iGEM, competition held at the Massachusetts Institute of Technology.
This year, the team is preparing another entry in the exclusive competition, which will be held in November. They are studying the pathway of lipid production with the ultimate goal of designing machines that can cause plants to produce more or less oil. If successful, this technique could develop alternative plants for energy production. Earlier this month, they received the DNA package from MIT with which they’ll do their work.
Victor Ho, a doctoral student in biochemistry, said the team is working to design a way to shorten the time needed to analyze whether a particular genetic process has occurred.
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| Taking on God with a DIY virus |
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posted by williampiv
on Friday January 04, @11:01AM
from the Synthetic-Bio-ALERT dept.
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For the first time, God has competition." This worrying warning was issued this month by a US technology watchdog known as the ETC Group. Its aim is to alert the world to the imminent creation of "the world's first-ever human-made species".
In the laboratories of the Venter Institute, in Rockville, Maryland, scientists have made the first steps towards building a lifeform from scratch. Welcome to the world of synthetic biology, where entirely new species of viruses or bacteria are designed and created in order to perform useful functions - for example to convert plant matter to fuel or to digest pollution. The aim is to select desirable genes from existing species and string them together to create artificial cells.
The race is now on to create the world's first entirely synthetic organism, and it appears that the Venter Institute - named after Craig Venter, the bio-entrepreneur who mapped the human genome using his own DNA as the template - is leading the way.
The institute has filed an application for worldwide patents on what it believes are the 381 essential genes needed to make an organism.
This "mycoplasma laboratorium" has not yet been created, but already the ETC group has coined a catchy moniker for it. "Goodbye Dolly... Hello Synthia," exclaimed their press release, calling for the patent applications to be rejected on several grounds.
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| Scientists Transplant Genome of Bacteria |
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posted by williampiv
on Friday January 04, @11:00AM
from the Synthetic-Bio-ALERT dept.
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Scientists at the institute directed by J. Craig Venter, a pioneer in sequencing the human genome, are reporting that they have successfully transplanted the genome of one species of bacteria into another, an achievement they see as a major step toward creating synthetic forms of life.
Other scientists who did not participate in the research praised the achievement, published yesterday on the Web site of the journal Science. But some expressed skepticism that it was as significant as Dr. Venter said.
His goal is to make cells that might take carbon dioxide out of the atmosphere and produce methane, used as a feedstock for other fuels. Such an achievement might reduce dependency on fossil fuels and strike a blow at global warming.
“We look forward to having the first fuels from synthetic biology certainly within the decade and possibly in half that time,” he said.
Richard Ebright, a molecular biologist at Rutgers University, said the transplantation technique, which leads to the transferred genome’s taking over the host cell, was “a landmark accomplishment.”
More Here.
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