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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

Scheme 2.

Scheme 2

Structures of (A) Z3dU, 5-(3-Aminopropyl)-2′-deoxyuridine, (B) 7-Deaza-dG, and (C) 7-Deaza-dG and Z3dU-Modified Duplexes (X = Z3dU, and Z = 7-deaza-dG)a

a The nucleotides of one duplex strand are labeled from 1 to 12, and nucleotides of the complementary strand are labeled from 13 to 24.