Structural properties of toxin II of sea anemone (Anemone sulcata) determined by laser raman spectroscopy
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control of the optical properties of nanoparticles by laser fields
در این پایان نامه، درهمتنیدگی بین یک سیستم نقطه کوانتومی دوگانه(مولکول نقطه کوانتومی) و میدان مورد مطالعه قرار گرفته است. از آنتروپی ون نیومن به عنوان ابزاری برای بررسی درهمتنیدگی بین اتم و میدان استفاده شده و تاثیر پارامترهای مختلف، نظیر تونل زنی(که توسط تغییر ولتاژ ایجاد می شود)، شدت میدان و نسبت دو گسیل خودبخودی بر رفتار درجه درهمتنیدگی سیستم بررسی شده اشت.با تغییر هر یک از این پارامترها، در...
15 صفحه اولStructural conservation of the pores of calcium-activated and voltage-gated potassium channels determined by a sea anemone toxin.
The structurally defined sea anemone peptide toxins ShK and BgK potently block the intermediate conductance, Ca(2+)-activated potassium channel IKCa1, a well recognized therapeutic target present in erythrocytes, human T-lymphocytes, and the colon. The well characterized voltage-gated Kv1.3 channel in human T-lymphocytes is also blocked by both peptides, although ShK has a approximately 1,000-f...
متن کامل1H-n.m.r. study of the solution properties and secondary structure of neurotoxin III from the sea anemone Anemonia sulcata.
The solution properties, secondary structure and global fold of the 27-residue polypeptide neurotoxin III (ATX III), from the sea anemone Anemonia sulcata, have been investigated using high-resolution 1H-n.m.r. spectroscopy. Studies of the concentration dependence of the n.m.r. spectrum indicate that the molecule self-associates in the millimolar concentration range useable for n.m.r. analysis,...
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An attempt has been made to identify electrical correlates of behaviour in Metridium senile (L.), a sea-anemone whose neuromuscular physiology and structure are already familiar (Parker, 1919; Hall &Pantin, 1937; Batham &Pantin, 1950a,b,c; 1951; 1954; Pantin, 1952, 19656; Batham, Pantin & Robson, i960; Robson, 1961; Ross, 19600,6). In a recent paper Josephson (1966) described electrical potenti...
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Equinatoxin II (Eqt-II) is a member of the actinoporins, a unique family of cytotoxins comprising 20 kDa pore-forming proteins isolated from sea anemones. Actinoporins bind preferentially to lipid membranes containing sphingomyelin, and create cationselective pores by oligomerization of three to four monomers. Previous studies have shown that regions of Eqt-II crucial for its cytolytic mechanis...
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ژورنال
عنوان ژورنال: FEBS Letters
سال: 1976
ISSN: 0014-5793
DOI: 10.1016/0014-5793(76)80269-4