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Two Distinct Populations of Calcium Channels in a Clonal Line of Pituitary Cells
Abstract
The whole-cell variant of the patch clamp technique was used to study calcium channels in GH3 cells. Two distinct populations of calcium channels, first recognized from their closing kinetics, were observed. The slowly closing channels are activated in a relatively negative voltage range and are inactivated within 100 milliseconds. They conduct barium and calcium about equally well. The fast closing channels are activated at more positive voltages, are not inactivated during a 100-millisecond pulse, conduct barium in preference to calcium, and are activated slightly more rapidly than the slowly closing channels.
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Cited by
Multiple types of neuronal calcium channels and their selective modulation
Tsien, R. W., Lipscombe, D., Madison, D. V., Bley, K. R., & Fox, A. P. (1988) · Trends in Neurosciences · doi:10.1016/0166-2236(88)90194-4 · Cited by 1,381
Tsunoo, A., Yoshii, M., & Narahashi, T. (1986) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.83.24.9832 · Cited by 218
Evolution of voltage-gated ion channels at the emergence of Metazoa
Moran, Y., Barzilai, M. G., Liebeskind, B. J., & Zakon, H. H. (2015) · Journal of Experimental Biology · doi:10.1242/jeb.110270 · Cited by 139
González‐Rodríguez, P., Falcón, D., Castro, M. J., Ureña, J., López‐Barneo, J., & Castellano, A. (2015) · The Journal of Physiology · doi:10.1113/jp271053 · Cited by 26
Metadata
- Authors
- Armstrong, C. M., & Matteson, D. R.
- Venue
- Science
- Published
- 1985-01-04
- Volume
- 227
- Issue
- 4682
- Pages
- 65-67
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W1988323645
- Cited by
- 321
- References
- 0
- FWCI
- 17.36
- Type
- journal article
- Language
- en
- Open access
- closed
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- Armstrong, C. M., & Matteson, D. R. (1985). Two Distinct Populations of Calcium Channels in a Clonal Line of Pituitary Cells. Science. https://doi.org/10.1126/science.2578071
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