[The action of sodium and potassium ions on the H+-ATPase activity of Escherichia coli K12 (lambda) membranes].
The dependence of activity of H+-ATPase membranes of Escherichia coli K12 (lambda) grown anaerobically of potassium and sodium ions has been studied. The addition of K+ or Na+ to the reaction mixture causes an increase of H+-ATPase activity. The effect depended on conditions and keeping time of the preparation of membranes. The sensitivity of enzyme to potassium and sodium decreased with the rise of temperature from -20 degrees C to -4 degrees C and an increase of keeping time.
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D000693:Anaerobiosis / Q000187:drug effects; D002462:Cell Membrane / Q000187:drug effects / Q000201:enzymology; D004024:Dicyclohexylcarbodiimide / Q000494:pharmacology; D004926:Escherichia coli / Q000187:drug effects* / Q000201:enzymology; D011188:Potassium / Q000494:pharmacology*; D006180:Proton-Translocating ATPases / Q000378:metabolism*; D012964:Sodium / Q000494:pharmacology*; D013696:Temperature; D013997:Time Factors
D004024:Dicyclohexylcarbodiimide; D012964:Sodium; D006180:Proton-Translocating ATPases; D011188:Potassium
Deĭstvie ionov natriia i kaliia na aktivnost' H+-ATFazy membran Escherichia coli K12 (lambda).