Voltage clamp fluorometry has become a powerful tool to compare partial reactions of P-type ATPases such as the Na(+),K(+)-ATPase and H(+),K(+)-ATPase with conformational dynamics of these ion pumps. Here, we describe the methodology to heterologously express membrane proteins in X. laevis oocytes and site-specifically label these proteins with one or more fluorophores. Fluorescence changes are measured simultaneously with current measurements under two-electrode voltage clamp conditions.
Robert E Dempski. Voltage Clamp Fluorometry of P-Type ATPases. Methods in molecular biology (Clifton, N.J.). 2016;1377:281-91
PMID: 26695040
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