Ca2+-activated K+channels contribute to the resting potential of vascular myocytes. Ca2+-sensitivity is increased by intracellular Mg2+-ions

Tetraethylammonium ion sensitivity of a

Tetraethylammonium ion sensitivity of a 35-pS Ca2+-activated K+channel in GH3cells that is activated by thyrotropin-releasing hormone

✍ Daniel G. Lang; Aileen K. Ritchie 📂 Article 📅 1990 🏛 Springer 🌐 English ⚖ 784 KB

Single Ca2(+)-activated K+ channels were studied in membrane patches from the GH3 anterior pituitary cell line. We have previously demonstrated the coexistence of large-conductance and small-conductance (280 pS and 11 pS in symmetrical 150 mM K+, respectively) Ca2(+)-activated K+ channels in this ce