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The form of double-stranded DNA stable under dehydrated conditions, found in crystals and solutions with higher salt concentrations or alcohol in the solute. It has a more compact helix than B-DNA with a deep, narrow major groove, a wide, shallow minor groove, and a hollow center. DNA:RNA complexes and double-stranded RNAs also take this form.
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RDF/XMLCreated 2006-01-19, last modified 2014-02-18