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Updated: May 21, 2026

Reconstitution of a Kv Channel into Lipid Membranes for Structural and Functional Studies
Published on: July 13, 2013
Expression, purification and functional reconstitution of slack sodium-activated potassium channels
Yangyang Yan1, Youshan Yang, Shumin Bian
1Department of Cellular and Molecular Physiology, Yale University, New Haven, CT 06520-8026, USA.
Abstract:
The slack (slo2.2) gene codes for a potassium-channel α-subunit of the 6TM voltage-gated channel family. Expression of slack results in Na(+)-activated potassium channel activity in various cell types. We describe the purification and reconstitution of Slack protein and show that the Slack α-subunit alone is sufficient for potassium channel activity activated by sodium ions as assayed in planar bilayer membranes and in membrane vesicles.
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