Feher J J
Biophys J. 1984 Jun;45(6):1125-33. doi: 10.1016/S0006-3495(84)84260-5.
The relation between unidirectional calcium and nucleotide fluxes was examined for different ATPase reaction schemes of the sarcoplasmic reticulum. The schemes considered differed in the order of sorption and desorption of calcium, ATP, and ADP. The results suggest that the theoretical relation between calcium and nucleotide fluxes depends on the reaction scheme and that experimental measurements can distinguish among them. The results obtained are generally valid and do not depend on assumptions of equilibrium or pseudoequilibrium between intermediate states of the pump.
针对肌浆网不同的ATP酶反应模式,研究了单向钙通量与核苷酸通量之间的关系。所考虑的反应模式在钙、ATP和ADP的吸附和解吸顺序上有所不同。结果表明,钙通量与核苷酸通量之间的理论关系取决于反应模式,并且实验测量可以区分这些模式。所获得的结果普遍有效,且不依赖于泵中间状态之间平衡或准平衡的假设。