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[Low-molecular cytolysins and trypsin inhibitors from sea anemone Radianthus macrodactylus. Isolation and partial characterization]. 1998

T A Zykova, and M M Monastyrnaia, and O V Apalikova, and T V Shvets, and E P Kozlovskaia
Pacific Institute of Bioorganic Chemistry, Far-Eastern Division, Russian Academy of Sciences, Vladivostok, Russia. emma@piboc.marine.su

Two low-molecular cytolytic toxins (RmI and RmII) and four trypsin inhibitors were isolated from the aqueous extract of sea anemone Radianthus macrodactylus. The method of isolation involved precipitation with acetone, gel filtration on acrylex P-4, ion-exchange chromatography on CM-32 cellulose, affinity chromatography on trypsin-binding sepharose 4B, ion exchange chromatography on an Ultrapore TSK CM-3SW column, and reversed phase HPLC on a Silasorb C18 column. RmI, RmII, and JnI inhibitor displayed molecular masses 5100, 6100, and 7100 Da, respectively, when subjected to SDS-PAGE. The isoelectric points were 9.2 and 9.3 for RmI and RmII, respectively. The amino acid composition and N-terminal amino acid residue (glycine) were determined for RmI, RmII, and JnI. Both proteins were nontoxic to mice and crabs. Hemolytic activity was determined to be 25 and 20 HU/mg for RmI and RmII, respectively, and their action on erythrocyte membrane was not inhibited by exogenous sphingomyelin. RmI and RmII exhibited antihistamine activity.

UI MeSH Term Description Entries
D007525 Isoelectric Focusing Electrophoresis in which a pH gradient is established in a gel medium and proteins migrate until they reach the site (or focus) at which the pH is equal to their isoelectric point. Electrofocusing,Focusing, Isoelectric
D008297 Male Males
D008970 Molecular Weight The sum of the weight of all the atoms in a molecule. Molecular Weights,Weight, Molecular,Weights, Molecular
D002846 Chromatography, Affinity A chromatographic technique that utilizes the ability of biological molecules, often ANTIBODIES, to bind to certain ligands specifically and reversibly. It is used in protein biochemistry. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Chromatography, Bioaffinity,Immunochromatography,Affinity Chromatography,Bioaffinity Chromatography
D002850 Chromatography, Gel Chromatography on non-ionic gels without regard to the mechanism of solute discrimination. Chromatography, Exclusion,Chromatography, Gel Permeation,Chromatography, Molecular Sieve,Gel Filtration,Gel Filtration Chromatography,Chromatography, Size Exclusion,Exclusion Chromatography,Gel Chromatography,Gel Permeation Chromatography,Molecular Sieve Chromatography,Chromatography, Gel Filtration,Exclusion Chromatography, Size,Filtration Chromatography, Gel,Filtration, Gel,Sieve Chromatography, Molecular,Size Exclusion Chromatography
D002851 Chromatography, High Pressure Liquid Liquid chromatographic techniques which feature high inlet pressures, high sensitivity, and high speed. Chromatography, High Performance Liquid,Chromatography, High Speed Liquid,Chromatography, Liquid, High Pressure,HPLC,High Performance Liquid Chromatography,High-Performance Liquid Chromatography,UPLC,Ultra Performance Liquid Chromatography,Chromatography, High-Performance Liquid,High-Performance Liquid Chromatographies,Liquid Chromatography, High-Performance
D002852 Chromatography, Ion Exchange Separation technique in which the stationary phase consists of ion exchange resins. The resins contain loosely held small ions that easily exchange places with other small ions of like charge present in solutions washed over the resins. Chromatography, Ion-Exchange,Ion-Exchange Chromatography,Chromatographies, Ion Exchange,Chromatographies, Ion-Exchange,Ion Exchange Chromatographies,Ion Exchange Chromatography,Ion-Exchange Chromatographies
D003386 Brachyura An infraorder of chiefly marine, largely carnivorous CRUSTACEA, in the order DECAPODA, including the genera Cancer, Uca, and Callinectes. Blue Crab,Callinectes sapidus,Carcinus maenas,Crab, Blue,Crab, Common Shore,Crab, Green,Crabs, Short-Tailed,Crabs, True,Green Crab,Uca,Common Shore Crab,European Shore Crab,Blue Crabs,Brachyuras,Carcinus maena,Common Shore Crabs,Crab, European Shore,Crab, Short-Tailed,Crab, True,Crabs, Blue,Crabs, Common Shore,Crabs, Green,Crabs, Short Tailed,Green Crabs,Shore Crab, Common,Shore Crab, European,Shore Crabs, Common,Short-Tailed Crab,Short-Tailed Crabs,True Crab,True Crabs,Ucas,maenas, Carcinus
D003603 Cytotoxins Substances that are toxic to cells; they may be involved in immunity or may be contained in venoms. These are distinguished from CYTOSTATIC AGENTS in degree of effect. Some of them are used as CYTOTOXIC ANTIBIOTICS. The mechanism of action of many of these are as ALKYLATING AGENTS or MITOSIS MODULATORS. Cytolysins,Cytotoxic Agent,Cytotoxic Agents,Cytotoxin,Agent, Cytotoxic
D004591 Electrophoresis, Polyacrylamide Gel Electrophoresis in which a polyacrylamide gel is used as the diffusion medium. Polyacrylamide Gel Electrophoresis,SDS-PAGE,Sodium Dodecyl Sulfate-PAGE,Gel Electrophoresis, Polyacrylamide,SDS PAGE,Sodium Dodecyl Sulfate PAGE,Sodium Dodecyl Sulfate-PAGEs

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