The so-called immune receptor Rx, conferring the resistance of some potato cultivars against potato virus X, does recognise the viruses in the cytoplasm, but – unexpectedly – its presence in the nucleus is also ...
Plants & Animals
Jan 4, 2011
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The cell signaling pathway known as Wnt, commonly activated in cancers, causes internal membranes within a healthy cell to imprison an enzyme that is vital in degrading proteins, preventing the enzyme from doing its job and ...
Cell & Microbiology
Dec 23, 2010
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Researchers at the University of Georgia have discovered a central switch that controls whether cells move or remain stationary. The misregulation of this switch may play a role in the increased movement of tumor cells and ...
Cell & Microbiology
Dec 7, 2010
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A new study reveals that two enzymes help immune cells deploy pathogen-killing traps by unraveling and using the chromatin (DNA and its associated proteins) contained in the cells' nuclei to form defensive webs. The study ...
Cell & Microbiology
Oct 25, 2010
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Scientists from The Scripps Research Institute have solved a long-standing mystery of how cells conduct "quality control" to eliminate the toxic effects of a certain kind of error in protein production. The findings may lead ...
Cell & Microbiology
Sep 12, 2010
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(PhysOrg.com) -- UC Berkeley researchers Karsten Weis, Jan Liphardt, and colleagues have used fluorescent probes called quantum dots to determine which molecules get into the nucleus via its nano-pores and which get kicked ...
Bio & Medicine
Sep 2, 2010
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(PhysOrg.com) -- For the first time, it's possible to experimentally capture a global snapshot of the conformation of thousands of RNA molecules in a cell. The finding is important because this scrappy little sister of DNA ...
Biotechnology
Sep 1, 2010
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Researchers at The Pennsylvania State University College of Medicine, Hershey, Pennsylvania have discovered that the Opioid Growth Factor (OGF, [Met5]-enkephalin) and its receptor, OGFr, a clinically important system with ...
Cell & Microbiology
Aug 23, 2010
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When searching for long-lost treasure, sometimes all you need is a good flashlight.
Cell & Microbiology
Jul 22, 2010
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Scientists are reporting discovery of a way to help proteins such as the new generation of protein-based drugs -- sometimes heralded as tomorrow's potential "miracle cures" -- get past the biochemical "Entrance Forbidden" ...
Biochemistry
Jul 14, 2010
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