News tagged with dna structures

Special chromosomal structures control key genes

Within almost every human cell is a nucleus six microns in diameter—about one 300th of a human hair's width—that is filled with roughly three meters of DNA. As the instructions for all cell processes, the DNA must be ...

Oct 09, 2014
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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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To watch DNA unwrap, blank out the proteins

Biophysics is a science of shapes – the shapes of molecules like DNA as they wrap and unwrap around protein cores, for instance. Cornell researchers have unveiled a new method for observing such processes ...

Aug 12, 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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Fluorescent jungle gyms made of DNA

(Phys.org) —The 1966 movie Fantastic Voyage presented a vision of the future that includes tiny machines gliding through the body and repairing injuries. Almost 50 years later, scientists are figuring out ...

Mar 17, 2014
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Untying DNA knots

Structural biologists at the Friedrich Miescher Institute for Biomedical Research have resolved the 3D structure of a protein machine that plays an important part in the maintenance of genomic stability. ...

Feb 21, 2014
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How do bacteria repair damage from the sun?

(Phys.org) —From bacteria to plants to humans, all organisms have mechanisms that they use to repair DNA damaged by ultraviolet (UV) light. This fundamental maintenance function is critical to our health ...

Jan 24, 2014
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