As the body creates antibodies to fight invaders, a three-protein DNA repair complex called MRN is crucial for a normal gene-shuffling process to proceed properly, University of Michigan research shows.
Cell & Microbiology
Aug 5, 2009
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An iconic photograph (http://img.timeinc.net/time/80days/images/530228.jpg) of Nobel laureates Drs. Francis Crick and James Watson show the pair discussing with a rigid model of the famous double helix.
Cell & Microbiology
Jul 13, 2009
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(PhysOrg.com) -- In late April 2009, a team of MBARI researchers tested the world's only deep-sea robotic DNA lab beneath the waters of Monterey Bay.
Environment
May 7, 2009
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When cells decide to make proteins, key building blocks of all organisms, they need to know where to start reading the instructions for assembling them.
Biochemistry
May 1, 2009
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For two decades, researchers have been using a growing volume of genetic data to debate whether ancestors of Native Americans emigrated to the New World in one wave or successive waves, or from one ancestral Asian population ...
Evolution
Apr 29, 2009
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The parasite Trypanosoma brucei, which causes African sleeping sickness, is like a thief donning a disguise. Every time the host's immune cells get close to destroying the parasite, it escapes detection by rearranging its ...
Cell & Microbiology
Apr 15, 2009
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(PhysOrg.com) -- In a new study, researchers at the University of Illinois have identified and visualized the signaling pathways in protein-RNA complexes that help set the genetic code in all organisms. The genetic code allows ...
Biochemistry
Apr 14, 2009
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The construction of complex man-made objects--a car, for example, or even a pizza--almost invariably entails what are known as "top-down" processes, in which the structure and order of the thing being built is imposed from ...
Biotechnology
Apr 8, 2009
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(PhysOrg.com) -- Researchers at Uppsala University and Harvard University have collaboratively developed a new theoretical model to explain how proteins can rapidly find specific DNA sequences, even though there are many ...
General Physics
Mar 16, 2009
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(PhysOrg.com) -- After being recognized and initially processed by the cellular machinery, the broken chromosome is extensively scanned for homology and the break itself is later tethered to the nuclear envelope. Thus the ...
Feb 13, 2009
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