Changes of alanine-sodium co-transport during maturation of Xenopus laevis oocytes.

@article{Jung1983ChangesOA,
  title={Changes of alanine-sodium co-transport during maturation of Xenopus laevis oocytes.},
  author={Dieter Jung and Hans P. Richter},
  journal={Cell biology international reports},
  year={1983},
  volume={7 9},
  pages={697-707}
}
Maturation of full grown Xenopus oocytes is associated with a decrease of their capacity to transport amino acids and nucleosides. Nevertheless, the transport continues at a reduced rate until the time of metaphase arrest when the oocytes are ready for shedding. We have found that the L-alanine transport in unfertilized, shed oocytes is a saturable process which is Na+-dependent. The stoichiometrical ratio between sodium and alanine is 2:1. Comparison with the alanine uptake in full grown… CONTINUE READING