Le site Bellaciao: coloré, multiple, ou le meilleur cotoie fort heureusement le pire, mélangé, bizarre, picabien et dadaîste, explorant toutes sortes de registres et de régimes rhétoriques, drole et polémiqueur, surréaliste: rencontre d'un parapluie et d'une machine à coudre sur une table de dissection, têtes de Lénine sur le clavier d'un piano Steinway ou Bosendorfer...
FR
ES
Senal en Vivo
VIDEO
RADIO
FRIENDS SITES
with Bellaciao
Bellaciao hosted by
To rebel is right, to disobey is a duty, to act is necessary !
Bellaciao  mobile version   |   Home  |   About us   |   Donation  |   Links  |   Contact  |   Search
Scientists a step nearer to creating artificial life

by : JoŽlle
Monday September 10, 2007 - 07:21

Scientists a step nearer to creating artificial life

New progress towards synthetic organism
Hope of fuels, drugs and ways to fight pollution

James Randerson, science correspondent

The Guardian
http://www.guardian.co.uk/science/2...
Thursday September 6 2007

To the untrained eye, the tiny, misshapen, fatty blobs on Giovanni Murtas’s microscope slide would not look very impressive. But when the Italian scientist saw their telltale green fluorescent glint he knew he had achieved something remarkable - and taken a vital step towards building a living organism from scratch.

The green glow was proof that his fragile creations were capable of making their own proteins, a crucial ability of all living things and vital for carrying out all other aspects of life.

Though only a first step, the discovery will hasten efforts by scientists to build the world’s first synthetic organism. It could also prove a significant development in the multibillion-dollar battle to exploit the technology for manufacturing commercially valuable chemicals such as drugs and biofuels or cleaning up pollution.

The achievement is a major advance for the new field of "synthetic biology". Its proponents hope to construct simple bespoke organisms with carefully chosen components. But some campaigners worry about the new technology’s unsettling potential and argue there should be a moratorium on the research until the ethical and technological implications have been discussed more widely.

One of the field’s leading lights is the controversial scientist Craig Venter, a beach bum turned scientific entrepreneur who is better known for sequencing the human genome and scouring the oceans for unknown genes on his luxury research yacht. The research institute he founded hopes to create an artificial "minimal organism". And he believes there is big money at stake.

In an interview with Newsweek magazine earlier this year, Dr Venter claimed that a fuel-producing microbe could become the first billion- or trillion-dollar organism. The institute has already patented a set of genes for creating such a stripped-down creature.

Ultimately, synthetic biologists hope to create the most efficient form of life possible, with the fewest genes needed to allow the organism to grow, replicate and proliferate. But researchers have approached the problem from two radically different directions. Dr Venter’s team is starting with one of the simplest forms of cellular life known to science - the bacterium Mycoplasma genitalium, which causes urinary tract infections. By stripping out each of its 482 genes and observing the effect on the organism they have calculated that a core of 381 are vital for life.

In contrast to this top-down approach, Dr Murtas, at the Enrico Fermi research centre at Roma Tre University in Italy, and Pier Luigi Luisi aim to build a living thing from the bottom up. "The bottom-up approach has the possibility of creating living systems from entirely non-living materials," said Tom Knight, an expert in synthetic biology at the Massachusetts Institute of Technology.

"That’s the real power of synthetic biology ... If you can take it apart into little bits and pieces and shuffle things around and put it back together and it still works, you can have much more confidence that you really understand what is going on."

The Italian team’s advance is to make simple cells which are essentially bags made up of a fatty membrane containing just 36 enzymes and purified ribosomes - microscopic components common to all cells which translate the genetic code into protein. The primitive cells are capable of manufacturing protein from one gene.

The team chose a fluorescent green protein found in jellyfish because it was easy to see, using a microscope, when the protein is being made. "We are trying to minimise any system we put in place for the cell," said Dr Murtas. "We can prove at this point that we can have protein synthesis with a minimum set of enzymes - 36 at the moment." He hopes the project will teach him about the earliest stirrings of life in Earth’s primeval slime some 3.5bn years ago.

"It’s impressive work," said Prof Knight. "Protein synthesis is a wonderful place to start, partly because it is so well understood and ... you can figure out what is going wrong relatively easily. But there is a lot more involved in making cells that are alive ... I think the bottom-up people have a long way to go."

Dr Murtas acknowledges that his bags of enzymes are a long way from a fully functioning cell, but it is an important proof of principle - being able to make proteins is key for the cell to acquire new functions. Giving it the ability to grow, divide, partition components into daughter cells correctly and replicate DNA will be a major challenge, though. The team will report the work in the journal Biochemical and Biophysical Research Communications.

Dr Murtas is now working on making cells which are capable of division - crucial if they are to be truly alive. As the membrane grows, the team hope it will reach a point where the cell becomes too big and so gives rise to a pair of daughter cells.

In June, Dr Venter’s research team announced that they had discovered how to carry out a "genome transplant". They showed they could move the genetic recipe of one species of Mycoplasma bacterium into another closely related species.



Leave a comment
Print this article





PEOPLE OF COLOR: THE NFL DOESN’T GIVE A DAMN ABOUT YOU
Tuesday 17 - 23:07
by David R. Hoffman, Legal Editor of Pravda.Report
TRUMP, JONES, THE NFL, AND THE NEW MCCARTHYISM
Tuesday 10 - 23:14
by David R. Hoffman, Legal Editor of Pravda.Report
Catalonia referendum: 90% voted for independence, say officials (video)
Monday 2 - 09:55
Catalonia referendum: ’Spanish authorities are the criminals’ (video)
Monday 2 - 09:47
If I was truly evil
Tuesday 12 - 14:22
Yves Bouvier Faces Swiss Tax Investigation
Saturday 9 - 03:27
by lishk
The Polisario front suspected of double-play around humanitarian aid hijacking
Friday 8 - 21:44
by NathanT
The Polisario front suspected of double-play around humanitarian aid hijacking
Friday 8 - 21:37
by Nathan Taylor
AMERICA’S JUDASES
Sunday 27 - 20:02
by David R. Hoffman, Legal Editor of Pravda.Report
What happend to Soraya and Hussein Khashoggi?
Friday 25 - 20:38
by Perseus
The falling Max Ehrich
Thursday 17 - 19:40
by celbbetty
DAMN THE NFL
Wednesday 16 - 01:44
by David R. Hoffman, Legal Editor of Pravda.Report
Overplaying your hand
Thursday 10 - 12:36
Gujarat Flood 2017 Devastation- Inevitable or Orchestrated in Dhanera ?
Thursday 3 - 06:19
by Dwarika Nath Rath
Multiple citizenship & Zionist subversion of America, Australia, India, Humanity
Wednesday 2 - 03:10
by Dr Gideon Polya
I’M AN IDIOT AND I VOTE
Thursday 27 - 23:23
by David R. Hoffman
The Top Ten Art Scandals That Have Rocked the World
Tuesday 18 - 15:48
by Curtis Judge
John Pilger slams Mainstream silence re Apartheid Israel crimes: Free Palestine
Thursday 13 - 02:43
by Dr Gideon Polya
RUSSIAN MAFIA – NOW IN DUBAI?
Monday 3 - 14:52
by James Dolay
THE NFL IS RACIST
Saturday 1 - 00:31
by David R. Hoffman, Legal Editor of Pravda.Report
Australian Finkel Review has dirty energy for 50 years & ignores 25 key issues
Monday 19 - 03:37
by Dr Gideon Polya
ENOUGH IS ENOUGH: JUSTICE FOR PHILANDO CASTILE
Sunday 18 - 01:03
by David R. Hoffman, Legal Editor of Pravda.Report
Find out what is true and false about climate change - Kenneth Pouchet
Friday 16 - 17:43
by Kenneth Pouchet
Freedom For Me, But Not You
Wednesday 31 - 02:17
by David R. Hoffman, Legal Editor of Pravda.Report
Post-Apartheid, non-racist, One State, democratic Palestine can happen tomorrow
Tuesday 30 - 08:21
by Dr Gideon Polya
A Review of Gilad Atzmon’s new book, “Being In Time: The Post-Political Manifes
Wednesday 17 - 21:23
by June Terpstra
Avoiding Another War in North Korea
Sunday 14 - 18:27
by William John Cox
Judah Ben Hur for President 2020
Saturday 13 - 16:15
by William Morgan
ARTICLES OF IMPEACHMENT FOR DONALD J. TRUMP
Saturday 13 - 02:33
by David R. Hoffman, Legal Editor of Pravda.Report
As War Party shadow boxes, its agenda surges unopposed
Friday 12 - 14:28
by Daniel Patrick Welch
Yves Bouvier caught in a real estate bankruptcy
Thursday 11 - 20:19
by Pierre Gove
Book: This Is How The State Fucks Your Mind
Tuesday 9 - 19:16
by OAF
ISRAEL’S 1967 ATTACK ON INTELLIGENCE SHIP U.S.S. LIBERTY - THE ONLY MYSTERY
Thursday 20 - 20:06
by JOHN CHUCKMAN
Denmark eaten down to the bone, what’s next?
Wednesday 19 - 16:22
by Henrik Petersen
A Financial Toll Tax: Transform, Not Reform, the U.S. Tax System
Monday 17 - 22:55
by William John Cox
COMPLETE DEGRADATION OF A SELF-STYLED GREAT NATION
Saturday 8 - 16:35
by JOHN CHUCKMAN
ATTACKING PEOPLE WITH FLEETS OF MISSILES BEFORE YOU HAVE ANY FACTS
Friday 7 - 20:34
by JOHN CHUCKMAN
Syrian rebels used Sarin nerve gas, not Assad’s regime: U.N. official
Thursday 6 - 23:09
by Shaun Waterman
TRUMP’S FRIGHTENING TURNAROUND ON SYRIA – A STRONG SIGNAL ABOUT WHO REALLY RUNS
Thursday 6 - 17:22
by JOHN CHUCKMAN
AMERICA’S POLITICS WITHOUT MEANING - THE FUNDAMENTAL QUESTIONS ABOUT THE COUNTRY
Thursday 30 - 17:37
by JOHN CHUCKMAN

home | webmaster



Follow-up of the site's activity
RSS Bellaciao En


rss FR / rss IT / rss ES



Bellaciao hosted by DRI

Organize, agitate, educate, must be our war cry. Susan B. Anthony
Facebook Twitter Google+
DAZIBAO
I, European citizen, won’t let refugees be rejected in my name
Thursday 10 March
©Olivier Jobard/Myop I, European citizen, won’t let refugees be rejected in my name THE RIGHT TO ASYLUM IS A RIGHT In the phrase ę right to asylum Ľ, every word matters. Under the law, every person who is persecuted because of his or her political opinions or because of his or her identity, every person that is endangered by violence, war or misery has a RIGHT to seek asylum in another country The aim of this petition is to collect (...)
read more...
Neo-Nazis and far-right protesters in Ukraine 3 live-stream
Friday 24 January
2 comments
The far-right in Ukraine are acting as the vanguard of a protest movement that is being reported as pro-democracy. The situation on the ground is not as simple as pro-EU and trade versus pro-Putin and Russian hegemony in the region. When US Senator John McCain dined with Ukraine’s opposition leaders in December, he shared a table and later a stage with the leader of the extreme far-right Svoboda party Oleh Tyahnybok. This is Oleh Tyahnybok, he has claimed a "Moscow-Jewish mafia" (...)
read more...
Hugo Chavez is dead (video live)
Wednesday 6 March
by : Collective BELLACIAO
1 comment
President Hugo Chavez companeros venezueliano died after a long battle with cancer.
read more...
International initiative to stop the war in Syria Yes to democracy, no to foreign intervention!
Thursday 13 December
Your support here: http://www.peaceinsyria.org/support.php We, the undersigned, who are part of an international civil society increasingly worried about the awful bloodshed of the Syrian people, are supporting a political initiative based on the results of a fact-finding mission which some of our colleagues undertook to Beirut and Damascus in September 2012. This initiative consists in calling for a delegation of highranking personalities and public figures to go to Syria in order to (...)
read more...
THE KU KLUX KLAN ONCE AGAIN CONTROLS INDIANA
Monday 12 November
by : David R. Hoffman, Legal Editor of Pravda.Ru
7 comments
At first glance, the results of America’s 2012 election appear to be a triumph for social, racial, and economic justice and progress in the United States: California voters passed a proposition requiring the rich to shoulder their fair share of the tax burden; Two states, Colorado and Washington, legalized the recreational use of marijuana, while Massachusetts approved the use of marijuana for medical purposes; Washington and two other states, Maine and Maryland, legalized same-sex (...)
read more...
I’VE DECIDED TO "WASTE" MY VOTE
Sunday 28 October
by : David R. Hoffman, Legal Editor of Pravda.Ru
In a 2004 episode of Comedy Central’s animated series South Park, an election was held to determine whether the new mascot for the town’s elementary school would be a “giant douche” or a “turd sandwich.” Confronted with these two equally unpalatable choices, one child, Stan Marsh, refused to vote at all, which resulted in his ostracization and subsequent banishment from the town. Although this satirical vulgarity was intended as a commentary on the two (...)
read more...
HIGHER EDUCATION IN AMERICA: DREAM OR NIGHTMARE? PART IV
Friday 28 September
by : David R. Hoffman, Legal Editor of Pravda.Ru
PART I PART II PART III If there is one major inconsistency in life, it is that young people who know little more than family, friends and school are suddenly, at the age of eighteen, supposed to decide what they want to do for the rest of their lives. Unfortunately, because of their limited life experiences, the illusions they have about certain occupations do not always comport to the realities. I discovered this the first time I went to college. About a year into my studies, I (...)
read more...
HIGHER EDUCATION IN AMERICA: DREAM OR NIGHTMARE? PART III
Friday 28 September
by : David R. Hoffman, Legal Editor of Pravda.Ru
PART I PART II PART IV Disillusioned with the machinations of so-called “traditional” colleges, I became an adjunct instructor at several “for-profit” colleges. Thanks largely to the power and pervasiveness of the Internet, “for-profit” colleges (hereinafter for-profits) have become a growing phenomenon in America. They have also been the subject of much political debate and the focus of a Frontline special entitled College Inc. Unlike traditional (...)
read more...
HIGHER EDUCATION IN AMERICA: DREAM OR NIGHTMARE? PART II
Friday 28 September
by : David R. Hoffman, Legal Editor of Pravda.Ru
PART I PART III PART IV Several years ago, a young lady came into the college where I was teaching to inquire about a full-time instructor’s position in the sociology department. She was advised that only adjunct positions were available. Her response was, “No thanks. Once an adjunct, always an adjunct.” Her words still echo in my mind. Even as colleges and universities raise their tuition costs, they are relying more and more on adjunct instructors. Adjuncts are (...)
read more...
HIGHER EDUCATION IN AMERICA: DREAM OR NIGHTMARE? PART I
Friday 28 September
by : David R. Hoffman, Legal Editor of Pravda.Ru
PART II PART III PART IV When The Bill of Rights was added to the United States Constitution over two hundred years ago, Americans were blessed with many rights considered to be “fundamental.” One conspicuously missing, however, was the right to an education. This was not surprising given the tenor of the times. America was primarily an agrarian culture, and education, especially higher education, was viewed as a privilege reserved for the children of the rich and (...)
read more...
ONE SOLITARY LIFE, PART TWO
Monday 30 July
by : David R. Hoffman, Legal Editor of Pravda.Ru
3 comments
If there is one universal question that haunts all human beings at some point in their lives, it is, “Why do we die?” Death, after all, is the great illogic. It ultimately claims all, the rich and the poor, the mighty and the small, the good and the evil. Death also has the capability to make most human pursuits—such as the quest for wealth, fame and power—vacuous and fleeting. Given this reality, I have often wondered why so many people are still willing to (...)
read more...
HOW MUCH CORRUPTION CAN DEMOCRACY ENDURE?
Thursday 28 June
by : David R. Hoffman, Legal Editor of Pravda.Ru
6 comments
How much corruption can a “democracy” endure before it ceases to be a democracy? If five venal, mendacious, duplicitous, amoral, biased and (dare I say it) satanic Supreme Court “justices”—John Roberts, Samuel Alito, Antonin Scalia, Clarence Thomas and Anthony Kennedy—have their way, America will soon find out. In several previous articles for Pravda.Ru, I have consistently warned how the Supreme Court’s 2010 Citizens United decision is one of the (...)
read more...
DEMOCRACY IN THE HANDS OF IDIOTS, PART TWO
Tuesday 12 June
by : David R. Hoffman, Legal Editor of Pravda.Ru
1 comment
Imagine, if you will, that the United States government passes a law banning advertisers from sponsoring commercials on Rush Limbaugh’s radio show or Rupert Murdoch’s Fox (Faux) “News” Network. On one hand, there would be two decided advantages to this ban: The National IQ would undoubtedly increase several percentage points, and manipulative pseudo-journalists would no longer be able to appeal to the basest instincts in human nature for ratings and profit while (...)
read more...
DEMOCRACY IN THE HANDS OF IDIOTS
Thursday 7 June
by : David R. Hoffman, Pravda.Ru Legal Editor
4 comments
LIVE, from the State that brought you Senator Joseph McCarthy, Wisconsin voters now proudly present, fresh from his recall election victory, Governor Scott Walker! At first glance, it is almost unfathomable that anyone with a modicum of intelligence would have voted to retain Scott Walker as Wisconsin’s governor. This, after all, is a man who openly declared he is trying to destroy the rights of workers through a “divide and conquer” strategy; who received 61% of the (...)
read more...
PEOPLE WITHOUT SOULS
Tuesday 13 March
by : David R. Hoffman, Legal Editor of Pravda.Ru
2 comments
A question I’ve frequently been asked since I began writing for Pravda.Ru in 2003 is, “Why did you become disillusioned with the practice of law?” This question is understandable, particularly since, in most people’s minds, being an attorney is synonymous with wealth and political power. I’ve always been reluctant to answer this question for fear it will discourage conscientious and ethical people from pursuing careers in the legal profession—a (...)
read more...