observation of the Y19N2H and X7 N1H protons, respectively. A strong H8→H11 NOE and no 3J(13C→H) coupling for the 13C8–O–C11–H11 eliminated the tetrahydrofuran species derived from the (6S,8R,11S) 1,N2-dG adduct. The (6S,8R,11S) carbinolamine linkage and the HNE side chain were located in the minor groove. The X7N2 and Y19N2 atoms were in the gauche conformation with respect to the linkage, maintaining
Michael 将反式
4-羟基
壬烯醛 (HNE) 添加到脱氧
鸟苷中,在 DNA 中产生非对映体 1,N2-dG 加合物。当在 5'-CpG-3' 序列中与 dC 相对时,(6S,8R,11S) 非对映异构体形成 N2-dG:N2-dG 链间交联 [Wang, H.; 科泽科夫,身份证;哈里斯,TM;里佐,CJJ Am。
化学 Soc.2003, 125, 5687–5700]。我们在 5'-d(G1C2T3A4G5C6X7A8G9T10C11C12)-3'·5'-d(G13G14A15C16T17C18Y19C20T21A22G23C24)-3' [X7 是碳的交联或碳的 6 ,8R,11S) 1,N2-dG 加合物,Y19 是与交联的 C8 碳或 HNE 衍生的 (6S,8R,11S) 1,N2-dG 加合物的 γ-碳相邻的 dG ; 交联在 5'-CpG-3' 序列中]。在交联的 C8