News tagged with replication

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Two proteins act as molecular tailors in DNA repair

Medicine & Health / Research

created Nov 13, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- On average, our cells encounter a very lethal form of DNA damage 10 times a day. Lucky for us, we have the capacity to repair each and every one of them. New research now reveals exactly how two well-known ...


Scientists are first to observe the global motions of an enzyme copying DNA

Scientists Are First To Observe The Global Motions Of An Enzyme Copyinng DNA

Chemistry / Biochemistry

created Oct 27, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Scientists here have identified how the motions of an enzyme are related to correctly copying genetic instructions, setting the stage for studies that can uncover what happens when DNA copying ...


New study identifies how ebola virus avoids the immune system

New study identifies how ebola virus avoids the immune system

Medicine & Health / Research

created Jan 27, 2009 | popularity 4.5 / 5 (11) | comments 1

(PhysOrg.com) -- Researchers at the University of Pennsylvania School of Medicine have likely found one reason why the Ebola virus is such a powerful, deadly, and effective virus. Using a cell culture model ...


Scientists develop first examples of RNA that replicates itself indefinitely

Chemistry /

created Jan 09, 2009 | popularity 4.9 / 5 (12) | comments 24

Now, a pair of Scripps Research Institute scientists has taken a significant step toward answering that question. The scientists have synthesized for the first time RNA enzymes that can replicate themselves without the help ...


Scientists use math modeling to predict unknown biological mechanism of regulation

Scientists use math modeling to predict unknown biological mechanism of regulation

Biology / Biotechnology

created Oct 14, 2009 | popularity 4.5 / 5 (4) | comments 0

A team of scientists, led by a biomedical engineer at The University of Texas at Austin, have demonstrated - for the first time - that mathematical models created from data obtained by DNA microarrays, can ...


Scientists uncover function of potential cancer-causing gene product

Medicine & Health / Research

created Aug 09, 2009 | popularity not rated yet | comments 1

The Stowers Institute's Conaway Lab has uncovered a previously unknown function of a gene product called Amplified in Liver Cancer 1 (Alc1), which may play a role in the onset of cancer. The work was published yesterday by ...


Triple-combo drug shows promise against antiviral-resistant H1N1, researcher says (w/ Video)

Medicine & Health / Diseases

created Oct 27, 2009 | popularity not rated yet | comments 0

An experimental drug cocktail that includes three prescriptions now widely available offers the best hope in developing a single agent to treat drug-resistant H1N1 swine flu, says a virology researcher in the University of ...


UC San Diego engineer provides insights to decades-old DNA squabble

UCSD Engineer Provides Insights to Decades-Old DNA Squabble

Chemistry / Biochemistry

created Jul 31, 2009 | popularity 3.7 / 5 (3) | comments 0

(PhysOrg.com) -- A group of nanoengineers, biologists and physicists have used innovative approaches to deduce the internal structure of chromatin, a key player in DNA regulation, to reconcile a longstanding ...


Math model accurately mimics cell division in carbon-cycling bacterium

Biology / Cell & Microbiology

created Aug 14, 2009 | popularity not rated yet | comments 0

Scientists from the Department of Biological Sciences and the Virginia Bioinformatics Institute (VBI) at Virginia Tech have developed a quantitative, mathematical model of DNA replication and cell division for the bacterium ...


'Painter' supercomputer comes to life at Louisiana Tech

'Painter' supercomputer comes to life at Louisiana Tech

Electronics / Hardware

created Mar 26, 2009 | popularity 4.5 / 5 (6) | comments 2

The Louisiana Optical Network Initiative (LONI) gained another 4.77 teraflops of computing power recently with the activation of the "Painter" supercomputer housed in the Data Replication Center at Louisiana ...


Telomeres resemble DNA fragile sites

Handle with care: Telomeres resemble DNA fragile sites

Biology / Cell & Microbiology

created Jul 10, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Telomeres, the repetitive sequences of DNA at the ends of linear chromosomes, have an important function: They protect vulnerable chromosome ends from molecular attack. Researchers at Rockefeller ...


HIV pays a price for invisibility

Medicine & Health / HIV & AIDS

created Apr 13, 2009 | popularity 3.7 / 5 (3) | comments 1

Mutations that help HIV hide from the immune system undermine the virus's ability to replicate, show an international team of researchers in the April 13 issue of the Journal of Experimental Medicine. The study was publis ...


Professor sheds light on DNA mechanisms

Chemistry / Biochemistry

created Jul 17, 2009 | popularity 4.5 / 5 (2) | comments 0

By manipulating individual atoms in DNA and forming unique molecules, a Georgia State University researcher hopes to open new avenues in research towards better understanding the mechanisms of DNA replication and transcription, ...


Researchers uncover potential mechanisms to protect against genetic alterations, diseases

Medicine & Health / Genetics

created Aug 06, 2009 | popularity 4.5 / 5 (2) | comments 0

Peering into the DNA of tiny yeast, researchers at the Moores Cancer Center at the University of California, San Diego and the San Diego Branch of the Ludwig Institute for Cancer Research have pinpointed a large number of ...


Is this the beginning of the end of plant breeding?

Biology / Cell & Microbiology

created Jun 09, 2009 | popularity 4.3 / 5 (4) | comments 0

No human is a clone of their parents but the same cannot be said for other living things. While your DNA is a combination of half your mother and half your father, other species do things differently. The advantage of clonal ...