29.12.2020: Application Note - Lipid bilayer recordings of KcsA channels reconstituted in proteoliposomes
Lipid bilayer recordings of KcsA channels reconstituted in proteoliposomes
Solvent-free planar lipid bilayers were formed in an automated manner using suction to attract a giant unilamellar vesicle (GUV) to the patch clamp chip which subsequently bursts across the aperture. Incubation of GUV's with purified KcsA channel protein yielded proteoliposomes. These proteoliposomes allow for immediate recording of channel activity after GUV sealing. The rapid formation of protein-containing planar lipid bilayers is of potential use for the efficient electrophysiological characterization of KcsA as shown here and also other ion channel proteins of interest.