[The effect of ionizing radiation on the regulation of the Na,K-ATPase activity of the kidney by univalent cations].
The effect of ionizing radiation of 0.206 C/kg on the kinetics of activation of rat kidney Na,K-ATPase preparation by Na and K ions was studied as an index of possible qualitative and quantitative changes in the properties of the enzyme. Ionizing radiation was shown not only to increase the enzyme activity but also to change the optimal rate of ATP hydrolysis by Na,K-ATPase and to induce some differences in the shape of the curve for Na,K-ATPase dependence upon Na-sodium//potassium ion ratio in the incubation medium.
Shainskaia
A M
AM
Annenkova
S V
SV
Egorova
E G
EG
Dboretskiĭ
A I
AI
D000818:Animals; D004789:Enzyme Activation / Q000528:radiation effects; D007477:Ions; D007668:Kidney / Q000201:enzymology*; D011188:Potassium / Q000502:physiology; D011833:Radiation Injuries, Experimental / Q000201:enzymology*; D051381:Rats; D011919:Rats, Inbred Strains; D012964:Sodium / Q000502:physiology; D000254:Sodium-Potassium-Exchanging ATPase / Q000378:metabolism*
D007477:Ions; D012964:Sodium; D000254:Sodium-Potassium-Exchanging ATPase; D011188:Potassium
Vliianie ioniziruiushcheĭ radiatsii na reguliatsiiu aktivnosti Na,K-ATFazy pochek odnovalentnymi kationami.