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Posts Tagged ‘protein’

RNA World 2.0

08/04/2015 Σχολιάστε

    © KEVIN HAND

 

Most scientists believe that ribonucleic acid played a key role in the origin of life on Earth, but the versatile molecule isn’t the whole story.

By Jef Akst | March 1, 2014

The ubiquity and diverse functionality of ribonucleic acid (RNA) in today’s world suggest that the information polymer could well have been the leading player early on in the establishment of life on Earth, and, in theory, it’s a logical basis for primitive life. One can readily imagine that RNA, as a catalytic molecule capable of serving as a template for its own replication, might have reproduced itself and grown exponentially in the primordial environment. Perhaps such an RNA-based proto–life-form even replicated with an appropriate level of fidelity to allow natural selection to begin directing its evolution.

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Watch Proteins Do the Jitterbug

17/09/2014 Σχολιάστε

THE CROWDED CELL A jumble of proteins inside the cell, visualized in a scientific animation. Credit Harvard University, XVIVO Scientific Animation

Carl Zimmer, The New York Times, 10.4.2014

If you could shrink down to the size of a molecule and fly into a cell, what would you see?

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The Nobel Prize in Chemistry 2012

10/10/2012 Σχολιάστε
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Wedernikow Boris, Amsterdam at Night

 
Robert J. Lefkowitz, Brian K. Kobilka
The Nobel Prize in Chemistry 2012
Robert J. Lefkowitz
Brian K. Kobilka

10 October 2012

The Royal Swedish Academy of Sciences has decided to award the Nobel Prize in Chemistry for 2012 to

Robert J. Lefkowitz
Howard Hughes Medical Institute and Duke University Medical Center, Durham, NC, USA

and

Brian K. Kobilka
Stanford University School of Medicine, Stanford, CA, USA

"for studies of G-protein–coupled receptors"

Smart receptors on cell surfaces
 

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