Much of the DNA that makes up our genomes can be traced back to strange rogue sequences known as transposable elements, or jumping genes, which are largely idle in mammals. But Johns Hopkins researchers report they have identified ...
Biotechnology
Jan 3, 2013
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Current thinking on how the Toxoplasma gondii parasite invades its host is incorrect, according to a study published today in Nature Methods describing a new technique to knock out genes. The findings could have implications ...
Cell & Microbiology
Dec 23, 2012
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Long ago, when life on our planet was in its infancy, a group of small single-celled algae floating in the vast prehistoric ocean swam freely by beating whip-like tails, called flagella. It's a relatively unremarkable tale, ...
Cell & Microbiology
Dec 11, 2012
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(Phys.org)—As the cold and flu season makes its annual visit, a team of researchers, using Argonne's Advanced Photon Source, continue to complete a detailed map of the human adenovirus—one of several viruses responsible ...
Analytical Chemistry
Oct 22, 2012
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Around 71 per cent of the Earth's surface is made up of salt-water oceans - that's 98 per cent of all water. The ecosystems that exist beneath their surface are diverse and vibrant. Their sheer scale, however, means that ...
Cell & Microbiology
Oct 15, 2012
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Scientists have discovered an unusual symbiosis between tiny single-celled algae and highly specialized bacteria. Their partnership plays an important role in marine ecosystems, fertilizing the oceans by taking nitrogen from ...
Cell & Microbiology
Sep 20, 2012
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(Phys.org)—Researchers Patricia A. Champion and Matthew Champion from the University of Notre Dame's Eck Institute for Global Health have developed a method to directly detect bacterial protein secretion, which could provide ...
Biochemistry
Sep 18, 2012
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Researchers at Montana State University have found a method for creating more robust, temperature-tolerant enzymes that can be used as tools in the process of genetic manipulation.
Biotechnology
Sep 7, 2012
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When an invading bacterium or virus starts rummaging through the contents of a cell nucleus, using proteins like tiny hands to rearrange the host's DNA strands, it can alter the host's biological course. The invading proteins ...
General Physics
Aug 30, 2012
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Scientists have discovered that poxviruses, which are responsible for smallpox and other diseases, can adapt to defeat different host antiviral defenses by quickly and temporarily producing multiple copies of a gene that ...
Cell & Microbiology
Aug 16, 2012
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