[Changes of liposomes electrophoretic mobility under the effect of ribonuclease and cytochrome c]. / Izmenenie elektroforeticheskoi podvizhnosti liposom pod vliianiem ribonukleasy i tsitokhroma c.

The effect of ribonuclease and cytochrome c on electrophoretic mobility of liposomes composed of phosphatidylcholine and diphosphatidylglycerol has been studied. zeta-Potential of lipid vesicles was found to decrease in the presence of proteins. Parameters of proteins binding to phospholipids were evaluated from the changes of surface charge density of model membranes. The constants of protein association with phospholipids were calculated to be about 4 x 10(4) M-1 for ribonuclease and about 5.4 x 10(4) M-1 for cytochrome c.

[Effect of membranotropic agents on the activity of microsomal oxidoreductases]. / Vliianie membranotropnykh agentov na aktivnost' oksidoreduktaz mikrosom.

The effect of triton X-100 and glutaraldehyde on the functioning of microsomal oxidoreductases has been investigated. Triton X-100 was found to increase the enzymes activity. The decrease of oxidoreductases activity was observed in the presence of glutaraldehyde.

[Effect of ionizing radiation on the activity of microsomal oxidoreductases]. / Vliianie ioniziruiushchei radiatsii na aktivnost' mikrosomal'nykh oksidoreduktaz.

The effect of electrons with energy 5 MeV on the functional state of rabbit liver microsome oxidoreductases has been investigated. Decrease in enzyme activity upon irradiation with a dose of 10 kGy was found. The possible mechanisms of the effects observed are discussed.

[Effect of radiation on the electrophoretic mobility of erythrocytes]. / Vliianie radiatsii na élektroforeticheskuiu podvizhnost' éritrotsitov.

Electrons with energy 5 MeV have been studied for their effect on the electrokinetic properties of erythrocytes. The electrophoretic mobility of the cells was shown to decrease under the effect of radiation. It is supposed that the effect observed is determined by the structural changes of the membrane proteins.