The activation of sodium-plus-potassium ion-dependent adenosine triphosphatase from marine teleost gills by univalent cations.
The apparent affinity constants for the binding of Cs+, Rb+, K+, Li+, Tl+ and NH4+ to (Na+ + K+)-dependent adenosine triphosphatase from teleost gills were measured and the values discussed in terms of the ion-selectivity isotherm described by Eisenman & Krasne (1975) [in MTP International Review of Science: Biochemistry Series One (Fox, C.F., ed.), vol. 2, pp. 27--59, Butterworths University Park Press, Baltimore]. The ion selectivity of the present enzyme is remarkably similar to that from nerve and brain.
D000251:Adenosine Triphosphatases; D000818:Animals; D002414:Cations, Monovalent; D004524:Eels; D004789:Enzyme Activation; D005880:Gills / Q000201:enzymology; D011188:Potassium; D012964:Sodium
D002414:Cations, Monovalent; D012964:Sodium; D000251:Adenosine Triphosphatases; D011188:Potassium