News tagged with dna double helix
Enzyme corrects more than one million faults in DNA replication
Scientists from the Medical Research Council (MRC) Institute of Genetics and Molecular Medicine (IGMM) at the University of Edinburgh have discovered an enzyme that corrects the most common mistake in mammalian DNA.
May 10, 2012 |
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A needle in a haystack: How does a broken DNA molecule get repaired?
Scientists from the Kavli Institute of Nanoscience at Delft University of Technology have discovered a key element in the mechanism of DNA repair. When the DNA double helix breaks, the broken end goes searching for the similar ...
May 03, 2012 |
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Study reveals how protein machinery binds and wraps DNA to start replication
(PhysOrg.com) -- Before any cell - healthy or cancerous - can divide, it has to replicate its DNA. So scientists who want to know how normal cells work - and perhaps how to stop abnormal ones - are keen to ...
Mar 06, 2012 |
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New molecule has potential to help treat genetic diseases and HIV
(PhysOrg.com) -- Chemists at The University of Texas at Austin have created a molecule that's so good at tangling itself inside the double helix of a DNA sequence that it can stay there for up to 16 days before ...
Feb 13, 2012 |
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Study shows how DNA finds its match
It's been more than 50 years since James Watson and Francis Crick showed that DNA is a double helix of two strands that complement each other. But how does a short piece of DNA find its match, out of the millions ...
Feb 08, 2012 |
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Explosive composite based on nanoparticles and DNA could be an energy source for embedded microsystems
A solid explosive with an energy density equivalent to that of nitroglycerine: this is the composite material produced by researchers at the Laboratoire d'Analyse et d'Architecture des Systemes (CNRS) in Toulouse, France, ...
Nanotechnology / Nanomaterials
Nov 03, 2011 |
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Neutron scattering confirms DNA is as stretchy as nylon
(PhysOrg.com) -- Neutron scientists at the Institut Laue-Langevin (ILL, France) have measured how fast sound travels along DNA to determine its ‘stiffness’. These findings help to explain how DNA folds, coils and ...
Sep 08, 2011 |
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Using DNA in fight against illegal logging
Advances in DNA 'fingerprinting' and other genetic techniques led by Adelaide researchers are making it harder for illegal loggers to get away with destroying protected rainforests.
Jun 30, 2011 |
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DNA falls apart when you pull it
DNA falls apart when you pull it with a tiny force: the two strands that constitute a DNA molecule disconnect. Peter Gross of VU University Amsterdam has shown this in his PhD research project. With this research, ...
May 20, 2011 |
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Water molecules characterize the structure of DNA genetic material
Water molecules surround the genetic material DNA in a very specific way. German scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) have discovered that, on the one hand, the texture of this hydration ...
Apr 26, 2011 |
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DNA nanoparticles to carry drugs and gene therapy
(PhysOrg.com) -- DNA isn't just for genetics anymore. Cornell researchers are using synthetic DNA to make nanoparticles, dubbed DNAsomes, that can deliver drugs and genetic therapy to the insides of cells.
Nanotechnology / Bio & Medicine
Apr 22, 2011 |
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Want to silence a gene? Pull here
(PhysOrg.com) -- Simply stretching DNA can silence a gene, scientists at the UA have discovered. The finding could point to a previously unknown gene control mechanism.
Mar 21, 2011 |
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Scientists show how men amp up their X chromosome
What makes a man? His clothes? His car? His choice of scotch? The real answer, says Brown University biologist Erica Larschan, is the newly understood activity of a protein complex that, like a genetic power tool, gives enzymes ...
Mar 02, 2011 |
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DNA caught rock 'n rollin' (w/ Video)
(PhysOrg.com) -- DNA, that marvelous, twisty molecule of life, has an alter ego, research at the University of Michigan and the University of California, Irvine reveals.
Jan 26, 2011 |
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Researchers use nanoscale transistors to study single-molecule interactions
An interdisciplinary team from Columbia University that includes electrical engineers from Columbia's Engineering School, together with researchers from the University's departments of Physics and Chemistry, has figured ...
Jan 24, 2011 |
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