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. Author manuscript; available in PMC: 2013 Sep 17.
Published in final edited form as: Methods. 2012 Apr 16;57(1):25–39. doi: 10.1016/j.ymeth.2012.04.005

Fig. 1.

Fig. 1

Left – 2-quartet G-DNA stem with anti-parallel down-down-up-up (from bottom left counterclockwise) 5′-GpG-3′ strand orientation and with anti-syn bases in 5′-3′ direction in all strands. The structure is colored by atom types with the integral bound K+ ion shown with a van der Waals sphere. Right – side view.