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. Author manuscript; available in PMC: 2011 Jun 1.
Published in final edited form as: Curr Opin Struct Biol. 2010 Apr 8;20(3):262–275. doi: 10.1016/j.sbi.2010.03.001

Figure 3.

Figure 3

Figure 3

The versatile nature of DNA duplexes. (a) The Hoogsteen duplex [d(ATATATCT)]2 [38] (2qs6). (b) The symmetrical four-stranded motif formed by two octamers d(TCGTTGCT) and held together by minor groove C:G:G:C tetrads [42•] (2k8z).