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:8/20/2014)... A new gene therapy developed by researchers at ... shown to protect mice from a life-threatening heart condition ... new therapeutic avenue," said Yi Lai, Ph.D., the leading ... the MU School of Medicine,s Department of Molecular Microbiology ... we hope this could lead to a treatment for ...
(Date:8/20/2014)... researchers have developed methods for electronically manipulating the flight ... moths use to control those muscles. The work opens ... "biobots," for use in emergency response. , "In the ... control the movement of moths for use in applications ... Bozkurt, an assistant professor of electrical and computer engineering ...
(Date:8/20/2014)... and POINT ROBERTS, Washington , ... Play a Key Role in Addressing Security Concerns in the ... a global news source covering leading sectors including biometrics, issues ... market. Jason Peaslee , Managing Partner at ... and Gino Pereira , CEO of NXT-ID, Inc. (OTCBB: ...
Breaking Biology News(10 mins):Gene therapy protects mice from lethal heart condition, MU researchers find 2Research paves way for development of cyborg moth 'biobots' 2Digital Wallets for a Digital World - the Players and the Concerns for Consumer Adoption 2Digital Wallets for a Digital World - the Players and the Concerns for Consumer Adoption 3Digital Wallets for a Digital World - the Players and the Concerns for Consumer Adoption 4Digital Wallets for a Digital World - the Players and the Concerns for Consumer Adoption 5Digital Wallets for a Digital World - the Players and the Concerns for Consumer Adoption 6Digital Wallets for a Digital World - the Players and the Concerns for Consumer Adoption 7
... Researchers at the University of Illinois at Chicago College ... on the nervous system to create the devastation of Huntington,s ... Nature Neuroscience online. The researchers were able to ... called JNK3, which is expressed only in neurons and, further, ...
... soil microbe that uses chemical warfare to fight off ... of its arsenal, researchers report, making use of an ... known to do: break a non-activated carbon-carbon bond in ... in the journal Nature , provides the first ...
... play a role in growth of some types of ... cancer development, say researchers from the Lombardi Comprehensive Cancer ... findings, presented at the annual meeting of the Endocrine ... this protein, known as Stat5a, may be different in ...
Cached Biology News:Huntington's disease deciphered 2Huntington's disease deciphered 3Researchers describe 'implausible' chemistry that produces herbicidal compound 2Dual role in breast tissue for a protein involved in leukemia 2
(Date:8/19/2014)... 2014 A Geisinger researcher on a personal ... Centers for Disease Control and Prevention (CDC) award recognizing ... concern. Joseph Boscarino , Ph.D. MPH, ... team of researchers nominated for the Centers for Disease ... for Data Methods and Study Design. "Hepatitis ...
(Date:8/19/2014)... 2014 Research and Markets ... "Spectroscopy Equipment and Accessories - Global ... offering. This report analyzes ... Accessories in US$ Thousands by the following ... Spectrometers, NMR-EPR Spectrometers, Near Infrared (NIR) Spectrometers, ...
(Date:8/19/2014)... (PRWEB) August 19, 2014 Sales Horizons, ... of its online sales skills training course ... skills. , MedTech clinical staff spend the majority of ... hospital, standalone medical center, or physician practice – providing ... But why stop there? Sales Horizons believes clinical staff ...
(Date:8/18/2014)... WASHINGTON , Aug. 18, 2014   Sterne, ... law firm in Washington, DC , ... Inter Partes Review (IPR) with the U.S. ... Inc., a subsidiary of BioReference Laboratories, Inc. (Nasdaq: BRLI). ... co-owned, or licensed by Myriad Genetics, Inc. These patents ...
Breaking Biology Technology:Geisinger investigator nominated for federal award 2Geisinger investigator nominated for federal award 3Global Spectroscopy Equipment and Accessories - Strategic Business Report 2014 2Sales Horizons Launches a New Online Sales Training Course for MedTech Clinical Staff to Develop Their Sales Skills 2Sales Horizons Launches a New Online Sales Training Course for MedTech Clinical Staff to Develop Their Sales Skills 3Sterne Kessler Files 11 IPR Petitions On Behalf Of GeneDx, Inc., Subsidiary Of BioReference Laboratories, Inc. 2Sterne Kessler Files 11 IPR Petitions On Behalf Of GeneDx, Inc., Subsidiary Of BioReference Laboratories, Inc. 3
... , , , , Multiporator , , , , ... Transfection Protocol , Protocol No. 4308 915.024 11/2001 , ... , , , , , ... line), , , ...
... , , , , , , Multiporator / Electroporator 2510 , , , ... , Transformation Protocol , Protocol No. 4308 915.512 ... , , , , , , ... , Cell type , ...
... , , , , Multiporator , , , , , ... Transfection Protocol , Protocol No. 4308 915.022 11/1999 , ... , , , Cell line , ... Transfection with , Plasmid RSV/lacZ (in bidistilled H 2 O), ...
Cached Biology Technology:H73C11 2H73C11 3Escherichia coli DH5 2Escherichia coli DH5 3COS-7 2
... These handy dispensers save space and ... and other garb. They are the ... parts used in labs, processing and ... charges and the particles they attract. ...
... These handy dispensers save space and ... and other garb. They are the ... parts used in labs, processing and ... charges and the particles they attract. ...
... that it uses a deep-UV deuterium bulb, which ... with a shutter (controlled via a TTL signal ... Source produces a powerful, stable output from 215-400 ... source are available, providing a wavelength range of ...
... and mitochondrial membrane potential. The mitochondrial permeability ... the initiation of cellular apoptosis. This process ... the electrochemical gradient across the mitochondrial membrane, ... membrane potential (YD). Loss of mitochondrial YD ...
Biology Products: