Tuesday, April 12, 2011

crystal structure

Representative crystal structures for A-, B- and Z-DNA. The nucleotides are colourcoded (cytosine in orange, guanine in cyan, thymine in green, and adenine in yellow) and a ribbon is superposed on the backbones, connecting the phosphorus atoms. A and B-DNA are both right handed, nearly uniform double helical structures, while Z-DN.



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