FIGURE 5.
Uptake of 45Ca2+ into DOPC vesicles. A, percentage of maximal uptake at pH 7.6 (dashed line) and 9.0 (full line). B, a comparison of Ca2+ uptake (μm Ca2+/mg lipid/ml) and ATPase activity (μmol ATP/mg lipid) at pH 7.6.
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