News tagged with polymerase
H1N1 influenza adopted novel strategy to move from birds to humans
Dec 08, 2009 |
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(PhysOrg.com) -- The 2009 H1N1 influenza virus used a new strategy to cross from birds into humans, a warning that it has more than one trick up its sleeve to jump the species barrier and become virulent.
Understanding DNA Repair and Cancer
Dec 03, 2009 |
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(PhysOrg.com) -- A protein that plays a key role in copying DNA also plays a vital role in repairing breaks in it, UC Davis scientists have found. The work is helping researchers understand how cancer cells can resist radiation ...
'Sloppier copier' surprisingly efficient
Jul 15, 2009 |
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The "sloppier copier" discovered by USC biologists is also the best sixth man in the DNA repair game, an article in the journal Nature shows.
Gene transcribing machine takes halting, backsliding trip along the DNA
Jul 30, 2009 |
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(PhysOrg.com) -- The body's nanomachines that read our genes don't run as smoothly as previously thought, according to a new study by University of California, Berkeley, scientists.
A Real Dracula Story
Aug 27, 2009 |
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Research, discovery and publishing in a prestigious journal are not as easy as 1-2-3. However, an outstanding mentor and a well-equipped lab made this feat possible for doctoral student Fei Jiang.
Survival of the healthiest: Selective eradication of malignant cells
Nov 05, 2009 |
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The ultimate goal in cancer research, a treatment that kills cancer cells whilst leaving healthy cells untouched, is brought nearer by the success of a new therapeutic approach. The potential therapy, published in BioMed ...
Monitoring Cancer Cell Changes With Quantum Dots
Nanotechnology / Bio & Medicine
Jul 23, 2009 |
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One of the earliest events that changes a normal cell into a malignant one is known as deoxyribonucleic acid (DNA) hypermethylation, a biochemical alteration that inactivates critical tumor-suppressor genes. A team of investigators ...
Faster, more cost-effective DNA test for crime scenes, disease diagnosis
Chemistry / Analytical Chemistry
Jul 08, 2009 |
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Scientists in Japan are reporting development of a faster, less expensive version of the fabled polymerase chain reaction (PCR) a DNA test widely used in criminal investigations, disease diagnosis, biological ...
New piece found in the puzzle of epigenetics
Jun 16, 2009 |
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For many years scientists have known that the numerous biological functions of an organism are not regulated solely by the DNA sequence of its genes: Superordinate regulatory mechanisms exist that contribute to determining ...
Researchers Reveal Structure of Key Genetic Proofreading Protein
Jun 05, 2009 |
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(PhysOrg.com) -- Nature might abhor a vacuum, but it loves a backup plan. In living organisms, physiological systems are kept under tight control by hierarchies of organic safety catches and emergency releases, ...
One secret to how TB sticks with you
Jul 09, 2009 |
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Mycobacterium tuberculosis is arguably the world's most successful infectious agent because it knows how to avoid elimination by slowing its own growth to a crawl. Now, a report in the July 10 issue of the journal Cell, ...
Molecular typesetting -- proofreading without a proofreader
Jun 23, 2009 |
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Researchers at the Universities of Leeds and Bristol (UK) have developed a model of how errors are corrected whilst proteins are being built.
Researchers study virus with unusual properties
Biology /
Dec 08, 2008 |
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(PhysOrg.com) -- A team of researchers from Penn State University and the University of Chicago has uncovered clues that may explain how and why a particular virus, called N4, injects an unusual substance ...
Catching a killer one spore at a time
Oct 19, 2009 |
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A workshop at the Smithsonian Tropical Research Institute in Panama has dramatically improved the ability of conservationists and regulatory agencies to monitor the spread of chytridiomycosis—one of the deadliest ...
A better test to detect DNA for diagnosing diease, investigating crimes
Aug 26, 2009 |
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Researchers in Singapore are reporting development of a new electronic sensor that shows promise as a faster, less expensive, and more practical alternative than tests now used to detect DNA. Such tests are ...
