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DNA used for crystallization and view of crosslink. (a) DNA sequence used for crystallization. The consensus sequence is boxed and crosslinked bases are in red. (b) Simulated annealing composite omit 2Fo−Fc map contoured at 1.0 σ (left) 1.3 σ (right) at the area of crosslinking. DNA consensus sequence atoms are colored red. Protein atoms are colored in green (structure 1, left) or light green (structure 2, right) (DeLano, 2002).
