News tagged with messenger

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Cells defend themselves from viruses, bacteria with armor of protein errors

Biology / Cell & Microbiology

created Nov 25, 2009 | popularity 5 / 5 (7) | comments 1

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 ...


MESSENGER team releases first global map of mercury

MESSENGER team releases first global map of mercury

Space & Earth / Space Exploration

created Dec 15, 2009 | popularity 5 / 5 (6) | comments 0

(PhysOrg.com) -- NASA's MESSENGER mission team and cartographic experts from the U. S. Geological Survey have created a critical tool for planning the first orbital observations of the planet Mercury - a global ...


Molecular freight: Synthetic nanoscale transport system modeled on nature

Chemistry / Biochemistry

created Dec 21, 2009 | popularity 5 / 5 (3) | comments 0

(PhysOrg.com) -- Just like our roads, there is a lot of traffic within the cells in our bodies, because cell components, messenger molecules, and enzymes must also be brought to the right places in the cell. One of these ...


Transcription factors guide differences in human and chimp brain function

Transcription factors guide differences in human and chimp brain function

Biology / Cell & Microbiology

created Dec 07, 2009 | popularity 5 / 5 (2) | comments 0

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.


New understanding about mechanism for cell death after stroke leads to possible therapy

Medicine & Health / Research

created Nov 22, 2009 | popularity not rated yet | comments 0

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 ...