News tagged with dna structures
Discarded data may hold the key to a sharper view of molecules
(Phys.org) -- There's nothing like a new pair of eyeglasses to bring fine details into sharp relief. For scientists who study the large molecules of life from proteins to DNA, the equivalent of new lenses have come in the ...
May 24, 2012 |
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Origami: Not just for paper anymore
While the primary job of DNA in cells is to carry genetic information from one generation to the next, some scientists also see the highly stable and programmable molecule as an ideal building material for ...
Nanotechnology / Nanomaterials
Apr 27, 2011 |
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Researchers suspend, image single DNA molecules
(PhysOrg.com) -- Studying chemical modifications in the chromosomes of cells is akin to searching for changes in coiled spaghetti. Scientists at Cornell have figured out how to stretch out tangled strands ...
Chemistry / Analytical Chemistry
Oct 31, 2011 |
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Scientists find the structure of a key 'gene silencer' protein
Scientists at The Scripps Research Institute have determined the three-dimensional atomic structure of a human protein that is centrally involved in regulating the activities of cells. Knowing the precise ...
Apr 26, 2012 |
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DNA and the 'magic rings' trick
(PhysOrg.com) -- A new study from UC Davis shows how, like a conjuring trick with interlocking rings, two interlocked pieces of DNA are separated after DNA is copied or repaired. The finding was published online Oct. 10 in ...
Oct 11, 2010 |
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DNA motor programmed to navigate a network of tracks
Expanding on previous work with engines traveling on straight tracks, a team of researchers at Kyoto University and the University of Oxford have successfully used DNA building blocks to construct a motor ...
Nanotechnology / Bio & Medicine
Jan 22, 2012 |
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Genetic study unravels ancient links between African and European populations
Large numbers of people moved between Africa and Europe during recent and well-documented time periods such as the Roman Empire, the Arab conquest, and the slave trade, and genetic evidence of these migrations lives on in ...
Mar 26, 2012 |
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Genetic mechanics: First-ever 3-D images of DNA damage sensor create
Everything — from noxious chemicals found in cigarette smoke or car exhaust, to ultraviolet radiation from the sun, to even something as benign as oxygen — is working overtime to damage DNA. Fortunately, ...
Feb 27, 2012 |
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Chemists Reach from the Molecular to the Real World with Creation of 3-D DNA Crystals
(PhysOrg.com) -- New York University chemists have created three-dimensional DNA structures, a breakthrough bridging the molecular world to the world where we live. The work, reported in the latest issue of ...
Sep 02, 2009 |
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Good parents are predictable -- at least when it comes to corn
In order to breed new varieties of corn with a higher yield faster than ever before, researchers at the University of Hohenheim in Stuttgart, Germany, and other institutions are relying on a trick: early selection of the ...
Jan 15, 2012 |
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Zinc-finger proteins act as site-specific adapters for DNA-origami structures
(PhysOrg.com) -- DNA is not merely a carrier of genetic information; DNA is a useful building material for nanoscale structures. In a way similar to origami, the Japanese art of paper folding, a long single ...
Feb 02, 2012 |
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Tailored optical material from DNA: Nano spiral staircases modify light
In the human body genetic information is encoded in double-stranded deoxyribonucleic acid building blocks, the so-called DNA. Using artificial DNA molecules, an international team of scientists headed by the ...
Nanotechnology / Nanomaterials
Mar 14, 2012 |
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Researchers generate first complete 3-D structures of bacterial chromosome
A team of researchers at the University of Massachusetts Medical School, Harvard Medical School, Stanford University and the Prince Felipe Research Centre in Spain have deciphered the complete three-dimensional structure ...
Oct 21, 2011 |
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Antarctic lake home to diverse community of viruses
(PhysOrg.com) -- A study of the genetic structure of viruses in an Antarctic lake has revealed an astonishing genetic richness in the large number of viral families discovered.
Nov 11, 2009 |
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Covering the bases: Quantum effect may hold promise for low-cost DNA sequencing, sensor applications
A ghostly property of matter, called quantum tunneling, may aid the quest for accurate, low-cost genomic sequencing, according to a new paper in Nature Nanotechnology Letters by Stuart Lindsay and his collab ...
Nanotechnology / Bio & Medicine
Mar 22, 2009 |
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