Potassium channel mutants of the yeast Saccharomyces...

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving nucleic acid

Reexamination Certificate

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C435S007200, C435S007310

Reexamination Certificate

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07429449

ABSTRACT:
The invention relates to processes for identifying inhibitors and activators of eukaryotic potassium channels, in which a mutatedS. cerevisiaecell is used whose endogenous potassium channels TRK1, TRK2 and TOK1 are not expressed functionally, but which expresses heterologously a eukaryotic potassium channel to be studied. Other subject matters of the invention are mutatedS. cerevisiaecells which do not express TRK1, TRK2 and TOK1, and the preparation and use of these mutatedS. cerevisiaecells.

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