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Fragments bound to L.naiffi uracil-DNA glycosylase: 4-morpholinopyridine (left upper), DMSO and 5-chloro-2-methoxybenzoic acid (right upper), DMSO and 8-hydroxyquinoline-2-carboxylic acid (left lower), and 1H-imidazole-4-carbothioamide (lower right).
