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. Author manuscript; available in PMC: 2009 Aug 21.
Published in final edited form as: Biochemistry. 2008 Jun 13;47(27):7147–7157. doi: 10.1021/bi800375m

Figure 3.

Figure 3

Sum electron density contoured at the 1.5σ level (green meshwork) around modified duplexes (A) DDDZ10 and (B) DDD2+Z10 and (C) the 7-deaza-dG · dC base pair with Watson-Crick geometry.