| 二维核磁共振谱测定植物新环肽-太子参环肽A和B中氨基酸序列 |
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| 引用本文： | 谭宁华,王德祖.二维核磁共振谱测定植物新环肽-太子参环肽A和B中氨基酸序列[J].波谱学杂志,1993,10(1):69-74. |
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| 作者姓名： | 谭宁华 王德祖 |
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| 作者单位： | 1. 中国药科大学植物化学室, 南京 210009;2. 中国科学院昆明植物所 植物化学开放实验室, 昆明 650204 |
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| 基金项目： | 中国科学院昆明植物所植物化学开放实验室资助项目 |
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| 摘 要： | 在植物新环肽太子参环肽A(HA)和B(HB)]的结构研究中,应用COLOC谱较成功地解决了其氨基酸序列。结果表明当J值选择在6Hz-15Hz时,COLOC谱能满意地给出氮上含有活泼氢的氨基酸序列。
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| 关 键 词： | 二维核磁共振 COLOC 氨基酸序列测定 太子参环肽 |
| 收稿时间： | 1992-06-09 |
DETERMINATION OF AMINO ACID SEQUENCES OF TWO NEW CYCLOPEPTIDES BY 2D NMR |
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| Tan Ninghua,Wang Dezu,Zhang Hongjie Chen Changxiang,Zhou Jun and Zhao Shouxun.DETERMINATION OF AMINO ACID SEQUENCES OF TWO NEW CYCLOPEPTIDES BY 2D NMR[J].Chinese Journal of Magnetic Resonance,1993,10(1):69-74. |
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| Authors: | Tan Ninghua Wang Dezu Zhang Hongjie Chen Changxiang Zhou Jun and Zhao Shouxun |
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| Institution: | 1. Department of Phyrochemistr China Pharmaceutical University, Nanjing, 210009;2. Laboratory of Phytochcmistry, Kunming Institute of Botany, Academia Sinica, Kunming, 650204 |
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| Abstract: | By combination of several NMR techniques (including 1H-1H、1H-13C COSY、RELAY, and COLOC), the spin systems and sequences of amino acid residues of heterophyllin A and B, two new cyclopeptides which were isolated from Pseudostellaria heterophylla, have been successfully elucidated. The results indicated the sequences of amino acids with NH can be satisfactorily determined by COLOC when the nJ(XH) were 6Hz to 15Hz. |
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| Keywords: | 2D NMR COLOC Determination of sequences of amino acids Cyclopeptides Heterophyllin A Heterophyllin B |
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