News tagged with messenger
Transcription factors guide differences in human and chimp brain function
Dec 07, 2009 |
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Humans share at least 97 percent of their genes with chimpanzees, but, as a new study of transcription factors makes clear, what you have in your genome may be less important than how you use it.
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 ...
Model suggests how life's code emerged from primordial soup
Aug 07, 2009 |
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(PhysOrg.com) -- In 1953, Stanley Miller filled two flasks with chemicals assumed to be present on the primitive Earth, connected the flasks with rubber tubes and introduced some electrical sparks as a stand-in for lightning. ...
Magnetic Tornadoes Could Liberate Mercury's Tenuous Atmosphere
Space & Earth / Space Exploration
Jun 02, 2009 |
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(PhysOrg.com) -- As the closest planet to the sun, Mercury is scorching hot, with daytime temperatures of more than 800 degrees Fahrenheit (approximately 450 degrees Celsius). It is also the smallest rocky ...
Magnesium detected in MESSENGER flyby of Mercury (w/Video)
Space & Earth / Space Exploration
Apr 30, 2009 |
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NASA's MESSENGER spacecraft served up another curveball to a University of Colorado at Boulder team after a second flyby of the hot inner planet Oct. 6 detected magnesium -- an element created inside exploding ...
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, ...
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 ...
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.
Deficits in brain's reward system observed in ADHD patients
Medicine & Health / Neuroscience
Sep 08, 2009 |
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A brain-imaging study conducted at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory provides the first definitive evidence that patients suffering from attention deficit hyperactivity disorder (ADHD) have ...
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 ...
Genomic study yields plausible cause of colony collapse disorder
Aug 24, 2009 |
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Researchers report this week that they have found a surprising but reliable marker of colony collapse disorder, a baffling malady that in 2007-2008 killed off more than a third of commercial honey bees in ...
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 ...
