Cadus Pharmaceutical Corp.

Cadus Technologies, Inc.

Lauren Silverman

Kirill Ostanin

Mary Cismowski

The present invention makes available a rapid, reproducible, robust assay system for screening and identifying pharmaceutically effective compounds that specifically interact with and modulate the activity of a cellular protein, e.g., a receptor or ion channel. The subject assay enables rapid screening of large numbers of compounds to identify those which act as an agonist or antagonist to the bioactivity of the cellular protein. In this system, the cell is treated with a compound, and functional interaction of this compound with a cellular receptor yields a detectable signal, which can be specifically measured. The subject assays include methods of identifying compounds which specifically modulate, for example, heterologous receptors coupled to the pheromone response pathway in yeast. The subject assays are particularly amenable to the identification of specific agonists and antagonists of G protein-coupled receptors.

Cell surface proteins and use thereof as indicators of activation of cellular signal transduction pathways

The invention provides yeast cells which comprise a mutation in an endogenous yeast stp22 gene and which express a heterologous G protein coupled receptor. The instant yeast cells display enhanced sensitivity to ligand induced stimulation of heterologous G protein coupled receptors and, therefore, show improved properties in drug screening assays.

Yeast cells having mutations in stp22 and uses therefor

The invention provides isolated yeast cells which comprise a mutation in an endogenous yeast CAV1 gene, which exhibit increased signaling via the pheromone response pathway. In a preferred embodiment, the cav1 mutant yeast cells of the invention also express a heterologous G protein coupled receptor that functionally couples to the pheromone response pathway. The instant yeast cells display enhanced sensitivity to ligand induced stimulation of heterologous G protein coupled receptors and, therefore, show improved properties in drug screening assays.

Growing community of inventors

Ossining, NY, United States of America

Lauren Silverman