realizes has specified input characteristic of function voltage clamp device voltage clamp assay cut open oocyte voltage clamp assay Gully Burns cut open oocyte voltage clamp assay COVG PMID:9711615 The cut-open oocyte Vaseline gap (COVG) voltage-clamp technique is designed to solve weaknesses in the two elextrode voltage clamp by maximizing the benefits of the Xenopus oocyte expression system by improving on clamp speed, signal-to-noise ratio, and ability to effectively perfuse the oocyte. In this way, it was possible to combine the most popular transient expression system, and the associated benefits of molecular cloning and site-directed mutagenesis, with the superior voltage-clamp properties of cut-open cell techniques. metadata complete