- page settings
- showhide sidebar
- showhide empty fields
- layout
- (too narrow)
- open all
- close all
- Page Content
- Overview
- External Links
- History
- Referenced
- Tools
- Tree Display
- My WormBase
- My Favorites
- My Library
- Recent Activity
- Comments (0)
history logging is off
Tree Display
My Favorites
My Library
Comments on Yuan A et al. (2003) Neuron "The sodium-activated potassium channel is encoded by a member of the Slo gene family." (0)
Overview
Yuan A, Santi CM, Wei A, Wang ZW, Pollak K, Nonet M, Kaczmarek L, Crowder CM, & Salkoff L (2003). The sodium-activated potassium channel is encoded by a member of the Slo gene family. Neuron, 37, 765-73. doi:10.1016/S0896-6273(03)00096-5
Na+-activated potassium channels (K-Na) have been identified in cardiomyocytes and neurons where they may provide protection against ischemia. We now report that K-Na is encoded by the rSlo2 gene (also called Slack), the mammalian ortholog of slo-2 in C. elegans. rSlo2, heterologously expressed, shares many properties of native K-Na including activation by intracellular Na+, high conductance, and prominent subconductance states. In addition to activation by Na+, we report that rSLO-2 channels are cooperatively activated by intracellular Cl-, similar to C. elegans SLO-2 channels. Since intracellular Na+ and Cl- both rise in oxygen-deprived cells, coactivation may more effectively trigger the activity of rSLO-2 channels in ischemia. In C. elegans, mutational and physiological analysis revealed that the SLO-2 current is a major component of the delayed rectifier. We demonstrate in C. elegans that slo-2 mutants are hypersensitive to hypoxia, suggesting a conserved role for the slo-2 gene
Authors: Yuan A, Santi CM, Wei A, Wang ZW, Pollak K, Nonet M, Kaczmarek L, Crowder CM, Salkoff L