News tagged with double helix structure

Base-pairing protects DNA from UV damage

Ludwig Maximilian University of Munich researchers have discovered a further function of the base-pairing that holds the two strands of the DNA double helix together: it plays a crucial role in protecting ...

Sep 19, 2014
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DNA double helix measurements

Researchers at the National Physical Laboratory (NPL) and the London Centre for Nanotechnology (LCN) have determined the structure of DNA from measurements on a single molecule using atomic force microscopy ...

May 15, 2014
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Histone exchanger comes into focus

The packaging of a gene has a major impact on its functional state and must be precisely controlled. A novel blend of methods has unveiled the architecture of a large protein complex that modulates DNA packing, ...

Sep 16, 2013
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1-D to 3-D genomics

(Phys.org) —Since his recent selection as an Alfred P. Sloan Research Fellow, Remo Rohs continues to demonstrate the research and creativity necessary to become a leader in the scientific community.

Jun 11, 2013
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Letter from DNA discoverer to be auctioned in NYC

(AP)—Sixty years ago this month, scientist Francis Crick wrote a letter to his 12-year-old son saying he and a colleague had discovered something "very beautiful"—the structure of DNA.

Mar 24, 2013
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'Quadruple helix' DNA discovered in human cells

In 1953, Cambridge researchers Watson and Crick published a paper describing the interweaving 'double helix' DNA structure - the chemical code for all life. Now, in the year of that scientific landmark's 60th Anniversary, ...

Jan 20, 2013
4.5 / 5 (58) 18 | with audio podcast

Novel DNA architecture for nanotechnology

The DNA structure as revealed by Watson and Crick is pivotal to the stability and replication of the DNA double helix. Replacement of the DNA base-pairs with other molecular entities is providing new functions ...

Oct 04, 2012
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Chemists do a double take on the double helix

(Phys.org) -- When most people think of a double helix, they think of DNA structure — a now familiar image thanks to Watson and Crick’s landmark 1953 discovery of the double-stranded molecules of ...

Aug 16, 2012
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Unraveling the DNA stretching mystery

(PhysOrg.com) -- Using a new experimental test structure, biophysicists at JILA have unraveled part of a 15-year mystery in the mechanics of DNA -- just how the molecule manages to suddenly extend to almost ...

Jan 20, 2011
4.7 / 5 (3) 0 | with audio podcast

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
5 / 5 (5) 2 | with audio podcast