波谱学杂志 ›› 1998, Vol. 15 ›› Issue (2): 117-122.

• 研究论文 • 上一篇    下一篇

低聚核苷酸d(GGTATACC)21H和13C NMR研究

阎江丽1,2, 张友杰2, 袁汉珍1, 毛希安1, 沈联芳1   

  1. 1 中国科学院武汉物理与数学研究所波谱与原子分子物理国家重点实验室, 武汉 430071;
    2 华中师范大学分析测试中心, 武汉 430079
  • 收稿日期:1997-12-24 出版日期:1998-04-05 发布日期:2018-01-13
  • 作者简介:阎江丽女,34岁,博士,副教授
  • 基金资助:
    国家自然科学基金资助项目,批准号39270208

1H AND 13C NMR STUDY OF DEOXYOLIGONUCLEOTIDE d(GGTATACC)2 IN SOLUTION

Yan Jiangli1,2, Zhang Youjie2, Yuan Hanzhen1, Mao Xi-an1, Shen Lianfang1   

  1. 1 State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, The Chinese Academy of Sciences, Wuhan 430071;
    2 Center for Analysis and Testing, Central China Normal University, Wuhan 430079
  • Received:1997-12-24 Online:1998-04-05 Published:2018-01-13

摘要: 通过综合分析2D 1H NOE谱(混合时间100ms),13C-1H异核多量子化学位移相关谱和1H双量子滤波化学位移相关谱归属了低聚脱氧核糖核酸片断d(GGTATACC)2 1H和13C的化学位移.该8聚核苷酸在溶液中为双螺旋B型结构,各碱基相对于糖环呈反式构象,糖环本身则均以C2'-endo构象为主.

关键词: d(GGTATACC)2, 1H化学位移, 13C 化学位移, NOESY, HMQC

Abstract: Deoxyoligo nucleotide d(GGTATACC)2 was studied by two dimensional NMR techniques. Its proton and 13C chemical shifts were assigned by 2D proton NOE spectrum and 13C-1H heteronuclear multiquantum chemical shift correlated spectrum (HMQC) combined with double quantum filtered chemical shift correlated spectrum (DQFCOSY). The sugar puckers of the eight residues of this helix octamer were determined to be dominantly C2'-endo forms with anti glycosidic conformations.

Key words: d(GGTATACC)2, 1H and 13C chemical shifts, NOESY, HMQC