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Latest DNA Stories

2014-05-02 10:06:07

Enzyme's double-edged sword may soon be sheathed Johns Hopkins biochemists have figured out what is needed to activate and sustain the virus-fighting activity of an enzyme found in CD4+ T cells, the human immune cells infected by HIV. The discovery could launch a more effective strategy for preventing the spread of HIV in the body with drugs targeting this enzyme, they say. A summary of their work was published online on April 21 in the journal Proceedings of the National Academy of...

Genetics Sat-Nav Tool Helps You Track Ancestry Even Farther
2014-05-01 09:48:42

Brett Smith for redOrbit.com - Your Universe Online While previous genetic research efforts have been able to identify a person’s ancestral origins within around 430 miles, a new system devised at the University of Sheffield in the United Kingdom can zero in on a person’s origin down to a particular village or island. According to a new report in the journal Nature Communications, the Sheffield researchers were able to develop a system called Geographic Population Structure (GPS)...

2014-04-28 10:17:33

A next-generation genome editing system developed by Massachusetts General Hospital (MGH) investigators substantially decreases the risk of producing unwanted, off-target gene mutations. In a paper receiving online publication in Nature Biotechnology, the researchers report a new CRISPR-based RNA-guided nuclease technology that uses two guide RNAs, significantly reducing the chance of cutting through DNA strands at mismatched sites. "This system combines the ease of use of the widely...

2014-04-28 10:11:32

Large sections of the genome that were once referred to as “junk” DNA have been linked to human heart failure, according to research from Washington University School of Medicine in St. Louis. So-called junk DNA was long thought to have no important role in heredity or disease because it doesn’t code for proteins. But emerging research in recent years has revealed that many of these sections of the genome produce RNA molecules that, despite not being proteins, still have important...

2014-04-25 10:07:07

Scientists discover that modifications to the RNA of the powerhouses in each of your body's countless cells might be influencing your fitness Although our chromosomes are relatively stable within our lifetimes, the genetic material found in our mitochondria is highly variable across individuals and may impact upon human health, say researchers at the University of Montreal and its affiliated CHU Sainte-Justine Hospital. Genomes are changing, not just from generation to generation, but even...

2014-04-25 09:39:51

Just a few grams of the new substance are enough to tag the entire olive oil production of Italy. If counterfeiting were suspected, the particles added at the place of origin could be extracted from the oil and analysed, enabling a definitive identification of the producer. "The method is equivalent to a label that cannot be removed," says Robert Grass, lecturer in the Department of Chemistry and Applied Biosciences at ETH Zurich. The worldwide need for anti-counterfeiting labels for food...

Cloaked DNA Nanodevices Survive Pilot Mission
2014-04-23 08:13:46

[ Watch The Video: Virus-Inspired DNA Nanodevices ] Wyss Institute for Biologically Inspired Engineering at Harvard Successful foray opens door to virus-like DNA nanodevices that could diagnose diseased tissues and manufacture drugs to treat them It's a familiar trope in science fiction: In enemy territory, activate your cloaking device. And real-world viruses use similar tactics to make themselves invisible to the immune system. Now scientists at Harvard's Wyss Institute for...

2014-04-22 23:10:27

Increasing applications of nucleic acid based-tests in molecular diagnostics are expected to drive the demand of nucleic acid purification products market in the coming few years. http://www.marketsandmarkets.com/Market-Reports/nucleic-acid-isolation-purification-market-229978287.html (PRWEB) April 22, 2014 The “Nucleic Acid Isolation and Purification Market by Technology (Column based, Reagent based, Magnetic bead based), Consumables & Instruments, by Application (Plasmid DNA...

2014-04-21 08:25:04

FAIRFIELD, Ohio, April 21, 2014 /PRNewswire/ -- Peter Vitulli, President and CEO of DNA Diagnostics Center (DDC), one of the world's largest commercial DNA testing labs, announced today that the following DDC employees have been promoted from within: Jerry Watkins is Executive Vice President & Chief Operating Officer; Kathy Leis is Vice President of Lab Operations; David Silver is Vice President of Marketing; Dan Leigh is Vice President of International Sales - based in the UK;...

2014-04-18 15:41:30

Researchers propose classification system revolutionizing communication of chromosomal abnormalities for research and clinical settings When talking about genetic abnormalities at the DNA level that occur when chromosomes swap, delete or add parts, there is an evolving communication gap both in the science and medical worlds, leading to inconsistencies in clinical and research reports. Now a study by researchers at Brigham and Women's Hospital (BWH) proposes a new classification system...


Latest DNA Reference Libraries

Brief Introduction To DNA Probes
2014-01-12 00:00:00

DNA probes help scientists to detect a specific gene in a long DNA sequence. According to Dr. Michael A. Pfaller, DNA probes are “single-stranded pieces of nucleic acid, labeled with a specific tracer (isotope, enzyme, or chromophore), that will hydrogen bond (hybridize) with complementary single-stranded pieces of DNA (or RNA) under the appropriate conditions of pH, temperature, and iconic strength.” The Foundation for Genomics and Population Health website has a helpful video about...

72_d9bf429528baf03b239fde81507185e6
2011-04-14 15:10:21

Bacillus subtilis, also known as hay bacillus or grass bacillus, is a Gram-positive, catalase-positive bacterium commonly found in soil. It is rod-shaped and a member of the genus Bacillus. It also has the ability to form a tough, protective endospore, allowing the organism to tolerate extreme environmental conditions. B. subtilis has historically been classified as an obligate aerobe, though recent research has proven this to not be strictly correct. It is not a human pathogen although...

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Word of the Day
sough
  • A murmuring sound; a rushing or whistling sound, like that of the wind; a deep sigh.
  • A gentle breeze; a waft; a breath.
  • Any rumor that engages general attention.
  • A cant or whining mode of speaking, especially in preaching or praying; the chant or recitative characteristic of the old Presbyterians in Scotland.
  • To make a rushing, whistling, or sighing sound; emit a hollow murmur; murmur or sigh like the wind.
  • To breathe in or as in sleep.
  • To utter in a whining or monotonous tone.
According to the OED, from the 16th century, this word is 'almost exclusively Scots and northern dialect until adopted in general literary use in the 19th.'
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