Lower Homologues of Ahpatinin, Aspartic Protease Inhibitors, from a Marine <i>Streptomyces</i> sp.
-
- Yi Sun
- Laboratory of Aquatic Natural Products Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan
-
- Kentaro Takada
- Laboratory of Aquatic Natural Products Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan
-
- Yuichi Nogi
- Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Natsushima, Yokosuka, Kanagawa 237-0061, Japan
-
- Shigeru Okada
- Laboratory of Aquatic Natural Products Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan
-
- Shigeki Matsunaga
- Laboratory of Aquatic Natural Products Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Bunkyo-ku, Tokyo 113-8657, Japan
書誌事項
- 公開日
- 2014-06-24
- 資源種別
- journal article
- DOI
-
- 10.1021/np500337m
- 公開者
- American Chemical Society (ACS)
この論文をさがす
説明
Two linear peptides, ahpatinin Ac (1) and ahpatinin Pr (2), were isolated together with the known ahpatinin (i)Bu, pepstatin Ac, pepstatin Pr, and pepsinostreptin from a Streptomyces sp. derived from a deep-sea sediment. The structure of ahpatinin Pr (2) was assigned by interpretation of NMR data and HPLC analysis of the hydrolysate after converting to the DNP-L-Val derivative. During the LCMS analysis of the acid hydrolysate, products arising from the retro-aldol cleavage of the statine and Ahppa units in 2 were observed and could facilitate the determination of the absolute configuration of the statine class of nonproteinogenic amino acids. Both ahpatinin Ac (1) and ahpatinin Pr (2) potently inhibited pepsin and moderately inhibited cathepsin B.
収録刊行物
-
- Journal of Natural Products
-
Journal of Natural Products 77 (7), 1749-1752, 2014-06-24
American Chemical Society (ACS)
