News tagged with messenger
Cells defend themselves from viruses, bacteria with armor of protein errors
Nov 25, 2009 |
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When cells are confronted with an invading virus or bacteria or exposed to an irritating chemical, they protect themselves by going off their DNA recipe and inserting the wrong amino acid into new proteins to defend them ...
New understanding about mechanism for cell death after stroke leads to possible therapy
Nov 22, 2009 |
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Scientists at the Brain Research Centre, a partnership of the University of British Columbia Faculty of Medicine and Vancouver Coastal Health Research Institute, have uncovered new information about the mechanism by which ...
Atomic-level Snapshot Catches Protein Motor in Action (w/ Video)
Nov 20, 2009 |
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(PhysOrg.com) -- The atomic-level action of a remarkable class of ring-shaped protein motors has been uncovered by researchers with the Lawrence Berkeley National Laboratory using a state-of-the-art protein ...
'Cross-talk' mechanism contributes to colorectal cancer
Nov 13, 2009 |
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Researchers at the University of Wisconsin-Madison School of Medicine and Public Health have identified a molecular mechanism that allows two powerful signaling pathways to interact and begin a process leading to colorectal ...
Explained: RNA interference
Nov 12, 2009 |
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Every high school biology student learns the basics of how genes are expressed: DNA, the cell’s master information keeper, is copied into messenger RNA, which carries protein-building instructions to the ribosome, ...
Microsoft websites top spots in September: comScore
Nov 07, 2009 |
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Industry tracker comScore on Friday released a study showing that Internet users in September spent more time at Microsoft websites that at any other online properties.
Two-pronged protein attack could be source of SARS virulence
Oct 29, 2009 |
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Ever since the previously unknown SARS virus emerged from southern China in 2003, University of Texas Medical Branch at Galveston virologists have focused on finding the source of the pathogen's virulence — its ability to ...
Getting on 'the GABA receptor shuttle' to treat anxiety disorders
Medicine & Health / Psychology & Psychiatry
Oct 22, 2009 |
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There are increasingly precise molecular insights into ways that stress exposure leads to fear and through which fear extinction resolves these fear states. Extinction is generally regarded as new inhibitory learning, but ...
New research shows how mobile DNA survives -- and thrives -- in plants, animals
Oct 21, 2009 |
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(PhysOrg.com) -- Bits of movable DNA called transposable elements or TEs fill up the genomes of plants and animals, but it has remained unclear how a genome can survive a rapid burst of hundreds, even thousands of new TE ...
Interoperability overdue for instant messaging
Oct 15, 2009 |
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You would think it was crazy if your cell phone could call only people with phones on the same network. But we put up with that absurd situation when it comes to instant messaging -- and have for years. Worse, there's little ...
Silence of the genes
Oct 13, 2009 |
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The molecular architecture of a protein complex that helps determine the fate of human cells has been imaged for the first time by researchers with the U.S. Department of Energy's Lawrence Berkeley National ...
MESSENGER Spacecraft Flies by Mercury
Space & Earth / Space Exploration
Sep 30, 2009 |
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Shortly before 5:55 p.m. EDT, MESSENGER skimmed 228 kilometers (141 miles) above the surface of Mercury in its third and final flyby of the planet.
Space scientists set for final spacecraft flyby of Mercury
Space & Earth / Space Exploration
Sep 28, 2009 |
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NASA's MESSENGER spacecraft, which is toting an $8.7 million University of Colorado at Boulder instrument, will make its third and final flyby of Mercury on Sept. 29 -- a clever gravity-assist maneuver that ...
MESSENGER Spacecraft Prepares for Final Pass by Mercury
Space & Earth / Space Exploration
Sep 23, 2009 |
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(PhysOrg.com) -- NASA's Mercury Surface, Space Environment, Geochemistry, and Ranging spacecraft known as MESSENGER will fly by Mercury for the third and final time on Sept. 29. The spacecraft will pass less ...
Free online activity explains MESSENGER spacecraft's Mercury flyby on Sept. 29
Space & Earth / Space Exploration
Sep 21, 2009 |
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(PhysOrg.com) -- NASA's MESSENGER spacecraft will fly past the planet Mercury on Sept. 29, and a free online simulator created by staff at Montana State University's Burns Technology Center helps explain how ...
