Endothelial K(+) channel lacks the Ca(2+) sensitivity-regulating beta subunit.

@article{Papassotiriou2000EndothelialKC,
  title={Endothelial K(+) channel lacks the Ca(2+) sensitivity-regulating beta subunit.},
  author={Jana Papassotiriou and R. Koehler and Jean Prenen and Hans Krause and Muhammad Akbar and Jan Eggermont and Martin Paul and Armin Distler and Bernd Nilius and James Hoyer},
  journal={FASEB journal : official publication of the Federation of American Societies for Experimental Biology},
  year={2000},
  volume={14 7},
  pages={885-94}
}
Hyperpolarizing large-conductance, Ca(2+)-activated K(+) channels (BK) are important modulators of vascular smooth muscle and endothelial cell function. In vascular smooth muscle cells, BK are composed of pore-forming alpha subunits and modulatory beta subunits. However, expression, composition, and function of BK subunits in endothelium have not been studied so far. In patch-clamp experiments we identified BK (283 pS) in intact endothelium of porcine aortic tissue slices. The BK opener DHS-I… CONTINUE READING
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