Navigation Links
Life secret exposed: Scientists unlock mystery of molecular machine
Date:2/19/2009

This release is available in French.

Montreal, February 19, 2009 A major mystery about the origins of life has been resolved. According to a study published in the journal Nature, two Universit de Montral scientists have proposed a new theory for how a universal molecular machine, the ribosome, managed to self-assemble as a critical step in the genesis of all life on Earth.

"While the ribosome is a complex structure it features a clear hierarchy that emerged based on basic chemical principles," says Sergey Steinberg, a Universit de Montral biochemistry professor who made his discovery with student Konstantin Bokov. "In the absence of such explanations, some people could imagine unseen forces at work when such complex structures emerge in nature."

What is a ribosome?

The ribosome is an enormous molecule responsible for translating the messages carried in the genetic code of all organisms into the workhorse molecules of the cell proteins that carry out all functions, including replicating the genome itself. As the world celebrates the bicentennial anniversary of the Father of Evolution, Charles Darwin, Prof. Steinberg's theory brings the scientific community even deeper into the study of the origins of life.

By examining the molecular self-organizing processes that preceded the living cell, the point where time begins for biologists, Prof. Steinberg goes further than Darwin and the many evolutionary biologists who followed could have imagined

By the standards of biological molecules, ribosomes are immense. Though visible only through lenses of the most powerful microscopes, comparing most other biological molecules to this behemoth is like comparing a tricycle to a jumbo jet. Having spent years gazing at the detailed structure of the ribosome, Prof. Steinberg pondered how such an immense and complex
'/>"/>

Contact: Sylvain-Jacques Desjardins
sylvain-jacques.desjardins@umontreal.ca
514-343-7593
University of Montreal
Source:Eurekalert

Page: 1 2

Related biology news :

1. Caltech researchers help unlock the secrets of gene regulatory networks
2. Scientists unlock possible aging secret in genetically altered fruit fly
3. DNA testing may unlock secrets of medieval manuscripts
4. Princeton-led team finds secret ingredient for the health of tropical rainforests
5. Expeditions reveal gulf of Californias deep sea secrets, as well as human imprints
6. Grays Paradox solved: Researchers discover secret of speedy dolphins
7. Uncovering secrets of life in the ocean
8. Caltech biologists spy on the secret inner life of a cell
9. Landmark study unlocks stem cell, DNA secrets to speed therapies
10. The making of Dig It! the Secrets of Soil exhibit
11. Human embryonic stem cell secretions minimized tissue injury after heart attack
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/31/2014)... new study of satellite data from the last 19 years ... sea-level around the coast of Antarctica to rise by 2cm ... the University of Southampton detected the rapid rise in sea-level ... than a million square kilometres. , The melting ... ice shelves has contributed an excess of around 350 gigatonnes ...
(Date:8/31/2014)... Over the past several decades, malaria diagnosis has changed very ... technician smears the blood across a glass slide, stains it ... the Plasmodium parasite, which causes the disease. This approach gives ... blood an important measure of disease severity but ... , A research team from the Singapore-MIT Alliance for Research ...
(Date:8/29/2014)... some surprising discoveries about the body,s initial responses ... the team found that specialized cells in the ... viral invasion and are the source of gut ... (IL-1β). , Though aimed at the presence ... epithelium that provides a barrier to protect the ...
Breaking Biology News(10 mins):A new way to diagnose malaria 2A new way to diagnose malaria 3The early cost of HIV 2
... of Iowa study suggests there are two root causes of ... findings, which already have sparked a clinical trial, may guide ... patients with CF. Almost half of patients with ... quarter will develop it in their teens. In addition to ...
... a global life sciences technology company specializing in clinical ... latest version of iMedNet ™ ... is a ground-breaking eClinical solution that makes electronic data ... research initiative...even very small studies of short duration.  This ...
... HOUSTON -- (Sept. 17, 2012) -- In the largest ... research institutions are embarking upon a five-year National Institutes ... and more effective by uncovering the exact causes of ... is a life-giver, but hemoglobin can become deadly when ...
Cached Biology News:Cystic fibrosis disrupts pancreas two ways in CF-related diabetes 2Cystic fibrosis disrupts pancreas two ways in CF-related diabetes 3MedNet Solutions Announces Latest Enhancements To Its iMedNet EDC eClinical Solution 2Rice to take part in $10.8 million study of hemoglobin toxicity 2Rice to take part in $10.8 million study of hemoglobin toxicity 3
(Date:8/28/2014)... 2014 Best Sanitizers, Inc., the first ... hand sanitizer, asks food processors and food handling professionals ... sanitizer they’re currently using to Best Sanitizers’ Alpet® ... critical to fighting cross-contamination and the spread of pathogens ... there are key criteria that make a hand sanitizer ...
(Date:8/28/2014)... , Aug. 28, 2014 /PRNewswire/ ... new market research report is ... Whole Exome Sequencing Market ... Preparation, Target Enrichment), by Services ... Synthesis), by Application (Cancer, Monogenic ...
(Date:8/28/2014)... (PRWEB) August 28, 2014 Sterlitech is ... polymeric membranes to its stable of products . ... molecular weight cut-offs and include membrane filters with surface ... increase in customer demand for our membrane process testing ... variety of flat sheet membranes,” explains Sterlitech President Mark ...
(Date:8/28/2014)... (PRWEB) August 28, 2014 A ... around the world is available from Strategic Consulting, ... companies. “ Industrial Microbiology Market Review, Fourth Edition: ... Market ” (IMMR—4) tracks and compares microbiology test ... North America, Europe and Asia, and forecasts future ...
Breaking Biology Technology:Food Processors and Food Handlers are Encouraged to Prepare for Fall Harvest by Evaluating Their Current Hand Sanitizer Using Nine Key Criteria 2Food Processors and Food Handlers are Encouraged to Prepare for Fall Harvest by Evaluating Their Current Hand Sanitizer Using Nine Key Criteria 3Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 2Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 3Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 4Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 5Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 6Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 7Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 8Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 9Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 10Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 11Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 12Whole Exome Sequencing Market by Product (Systems, Kits (Library Preparation, Target Enrichment), by Services (Sequencing), by Technology (Sequencing by Synthesis), by Application (Cancer, Monogenic disorders) - Global Forecast to 2018 13Sterlitech Corporation Enhances Its Selection of Flat Sheet Membrane Filters 22 Billion Industrial Microbiology Tests Conducted for Product Quality and Safety Worldwide 22 Billion Industrial Microbiology Tests Conducted for Product Quality and Safety Worldwide 3
... palm plantations will worsen the dual environmental crises of ... protected, warn scientists in the most comprehensive review of ... from the Zoological Society of London and University of ... the role of palm oil production in tropical deforestation ...
... Micromet, Inc.,(Nasdaq: MITI ) ("Micromet" or ... for the treatment of cancer,inflammation and autoimmune diseases, ... board of directors appointed Dr. Peter Johann, a,current ... member of the Company,s,audit committee. The appointment fills ...
... 15 Inverness Medical,Innovations, Inc. (Amex: IMA ), ... solutions, today declared a,dividend of $4.77 per share on ... dividend will be paid in shares of Series B,stock ... of (a) $4.77 divided by,(b) 97% of the average ...
Cached Biology Technology:Oil palm plantations are no substitute for tropical rainforests, a new study shows 2Oil palm plantations are no substitute for tropical rainforests, a new study shows 3Micromet, Inc. Fills Audit Committee Vacancy and Regains Compliance With NASDAQ Marketplace Rule 2Micromet, Inc. Fills Audit Committee Vacancy and Regains Compliance With NASDAQ Marketplace Rule 3Micromet, Inc. Fills Audit Committee Vacancy and Regains Compliance With NASDAQ Marketplace Rule 4Inverness Medical Innovations Declares Dividend on its Series B Convertible Perpetual Preferred Stock 2
Purified anti-LAT...
Nuclear/Cytosol Fractionation Kit Research Focus: other Storage Temperature: 4C Shipping Temperature: 4C...
Cytosol/Particulate Rapid Separation Kit Research Focus: other Storage Temperature: -20C Shipping Temperature: 4C...
Request Info...
Biology Products: