Translocation of intracellularly stored calcium during the contraction–relaxation cycle in guinea pig taenia coli

@article{Sugi1977TranslocationOI,
  title={Translocation of intracellularly stored calcium during the contraction–relaxation cycle in guinea pig taenia coli},
  author={Haruo Sugi and Tateo Daimon},
  journal={Nature},
  year={1977},
  volume={269},
  pages={436-438}
}
ALTHOUGH it has been shown that, in vertebrate smooth muscles, cation binding sites are localised in some intracellular structures1–7, and that isolated microsomal fraction can accumulate Ca in the presence of ATP (refs 8–10), the role of the Ca-accumulating structures in the contraction–relaxation cycle is not firmly established. Using potassium pyroantimonate, which is known to penetrate intact cell membrane in the presence of osmium to produce an electron-opaque precipitate with… CONTINUE READING

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