Inhibition of venom phospholipases A2 by manoalide and manoalogue. Stoichiometry of incorporation.
نویسندگان
چکیده
منابع مشابه
Cobra venom phospholipase A2 inhibition by manoalide. A novel type of phospholipase inhibitor.
Manoalide, an unusual nonsteroidal sesterterpenoid recently isolated from sponge, antagonizes phorbol-induced inflammation but not that induced by arachidonic acid, suggesting that manoalide acts prior to the cyclooxygenase step in prostaglandin synthesis, possibly by inhibiting phospholipase A2. We have now studied the inhibitory effect of manoalide on a homogeneous preparation of phospholipas...
متن کاملMolecular model of the interaction of bee venom phospholipase A2 with manoalide.
A molecular model of the interaction between manoalide (MLD) and bee venom phospholipase A2 (bv-PLA2) has been derived making use of a combination of computational methods. MLD was built in its open form and simulated by using molecular dynamics techniques. It is shown that the polar part of the molecule, which is thought to be the reactive region, is endowed with considerable conformational fl...
متن کاملActivation of J77A.1 Macrophages by Three Phospholipases A2 Isolated from Bothrops atrox Snake Venom
In the present study, we investigated the in vitro effects of two basic myotoxic phospholipases A2 (PLA2), BaTX-I, a catalytically inactive Lys-49 variant, and BaTX-II, a catalytically active Asp-49, and of one acidic myotoxic PLA2, BaPLA2, a catalytically active Asp-49, isolated from Bothrops atrox snake venom, on the activation of J774A.1 macrophages. At noncytotoxic concentrations, the toxin...
متن کاملInhibition of beta-bungarotoxin action by bee venom phospholipase A2.
(3-Bungarotoxin ((3-BuTX) induces twitching of innervated frog muscle and subsequently blocks transm itter release from motor nerve endings. These actions of P-BuTX are prevented if the nerve-muscle junctions are pretreated with a low concentration of phospholipase A2 from bee venom. When the Ca2+ in the external fluid is replaced by Sr2+, the phospho lipase activity of P-BuTX is negligible an...
متن کاملsecond language acquisition of telicity and aspect by persian learners of english
این تحقیق از دو قسمت اصلی تشکیل شده است: در قسمت اول فراگیری ختمیت به ویژه درک و تولید اینگونه جملات توسط فراگیران ایرانی زبان انگلیسی مورد بررسی قرار گرفته است. قضاوت تعدادی انگلیسی زبان بر روی این جملات نیز هدفی دیگر بود که در این رساله بررسی شده است. از موضوعات دیگر تفاوت بین نشانه های ختمیت در زبان انگلیسی و فارسی و تاثیر زبان اول فراگیران در درک و تولید اینگونه جملات است. در قسمت دوم استفا...
15 صفحه اولذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1991
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)55330-8