Gap junctional conductance: comparison of sensitivities to H and Ca ions.
- 1 January 1982
- journal article
- research article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 79 (2), 441-445
- https://doi.org/10.1073/pnas.79.2.441
Abstract
One cytoplasmic aspect of the junctional membrane between coupled pairs of Fundulus heteroclitus blastomeres was perfused with solutions of known H+ and Ca2+ concentrations. Conductance of junctional membrane was decreased by either ion. The sensitivity to H+ was .apprx. 10,000 times greater than that to Ca2+. Apparently junctional conductance can be modulated by changes in H+ concentration near physiological pH but unphysiologically high concentrations of Ca2+, such as would be reached only on cell death, are required for comparable changes in junctional conductance.This publication has 23 references indexed in Scilit:
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