Stretch a DNA Loop, Turn Off Proteins

It may look like mistletoe wrapped around a flexible candy cane. But this molecular model shows how some proteins form loops in DNA when they chemically attach, or bind, at separate sites to the double-helical molecule that carries life’s genetic blueprint.

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<p><a href="http://www.physorg.com/news84556631.html">Stretch a DNA Loop, Turn Off Proteins</a></p> <p>It may look like mistletoe wrapped around a flexible candy cane. But this molecular model shows how some proteins form loops in DNA when they chemically attach, or bind, at separate sites to the double-helical molecule that carries life’s genetic blueprint. <br> <br></p>