2WQ7:
reference: DNA (6-4) Photolyases Reduce Dewar Isomers for Isomerization into (6-4) Lesions., Glas AF, Kaya E, Schneider S, Heil K, Fazio D, Maul MJ, Carell T, J Am Chem Soc. 2010 Feb 18. PMID: 20166732

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