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Sodium-dependent and sodium-independent phosphate uptake by full-grown, prophase-arrested oocytes of Xenopus laevis before and after progesterone-induced maturation

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Eckard,  Peter
Department of Cell Physiology, Max Planck Institute of Biophysics, Max Planck Society;

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Passow,  Hermann
Department of Cell Physiology, Max Planck Institute of Biophysics, Max Planck Society;

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Citation

Eckard, P., & Passow, H. (1987). Sodium-dependent and sodium-independent phosphate uptake by full-grown, prophase-arrested oocytes of Xenopus laevis before and after progesterone-induced maturation. Cell Biology International Reports, 11(5), 349-358. doi:10.1016/0309-1651(87)90001-4.


Cite as: https://hdl.handle.net/21.11116/0000-0008-D3E2-A
Abstract
The uptake of inorganic phosphate by full-grown, prophase-arrested oocytes occurs by two essentially independent transport systems, which accomplish the delivery of extracellular phosphate into two different cellular compartments. One transport system is sodium-dependent, the other is sodium-independent. Both systems can be inhibited by sulfhydryl reagents and the sodium-dependent system becomes inhibited during progesterone-induced oocyte maturation.