Aplysiasecosterols B and C: two new 9,11-secosteroids with a cis-fused 1,4-quinone structure from the sea hare Aplysia kurodai
نویسندگان
چکیده
منابع مشابه
Structure of β-1,4-mannanase from the common sea hare Aplysia kurodai at 1.05 Å resolution.
β-1,4-Mannanase (EC 3.2.1.78) catalyzes the hydrolysis of β-1,4-glycosidic bonds within mannan, a major constituent group of the hemicelluloses. Bivalves and gastropods possess β-1,4-mannanase and may degrade mannan in seaweed and/or phytoplankton to obtain carbon and energy using the secreted enzymes in their digestive systems. In the present study, the crystal structure of AkMan, a gastropod ...
متن کاملComprehensive enzymatic analysis of the amylolytic system in the digestive fluid of the sea hare, Aplysia kurodai: Unique properties of two α-amylases and two α-glucosidases
Sea lettuce (Ulva pertusa) is a nuisance species of green algae that is found all over the world. East-Asian species of the marine gastropod, the sea hare Aplysia kurodai, shows a clear feeding preference for sea lettuce. Compared with cellulose, sea lettuce contains a higher amount of starch as a storage polysaccharide. However, the entire amylolytic system in the digestive fluid of A. kurodai...
متن کاملNew Cytotoxic and Antibacterial Compounds Isolated from the Sea Hare, Aplysia kurodai
The extract of the sea hare, Aplysia kurodai, showed cytotoxicity against HeLa cells and antibacterial activity against Staphylococcus aureus. Bioassay-guided purification afforded four active compounds, which were identified to be laurinterol, laurinterol acetate, debromolaurinterol, and debromolaurinterol acetate by spectroscopic analysis. Although the acetates were derived from laurinterol a...
متن کاملComprehensive Enzymatic Analysis of the Cellulolytic System in Digestive Fluid of the Sea Hare Aplysia kurodai. Efficient Glucose Release from Sea Lettuce by Synergistic Action of 45 kDa Endoglucanase and 210 kDa ß-Glucosidase
Although many endo-ß-1,4-glucanases have been isolated in invertebrates, their cellulolytic systems are not fully understood. In particular, gastropod feeding on seaweed is considered an excellent model system for production of bioethanol and renewable bioenergy from third-generation feedstocks (microalgae and seaweeds). In this study, enzymes involved in the conversion of cellulose and other p...
متن کاملParguerol and Isoparguerol Isolated from the Sea Hare, Aplysia kurodai, Induce Neurite Outgrowth in PC-12 Cells
The extract of the sea hare, Aplysia kurodai, showed neurotrophic activity toward rat pheochromocytoma (PC-12) cells. Bioassay-guided purification afforded two active compounds, which were subsequently identified to be parguerol and isoparguerol by spectroscopic analysis. It was found that both parguerol and isoparguerol induced neurite outgrowth in PC-12 cells at concentrations of 25 and 50 μM...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2017