Columbia University

Maria Hauge Pedersen

Jonathan A Javitch

The current invention is methods and assays for detecting and/or measuring the modification, i.e., activation or inhibition, of a receptor of interest, without the need to modify the receptor with a label or a tag. The invention uses proteins that move, translocate, are recruited and/or bind to the receptor of interest when the receptor is modified, and proteins in proximity to and/or in the same compartment as the receptor of interest. The proteins are attached or linked to polypeptides that result from the unique cleavage of a modifiedluciferase. When the proteins are in proximity allowing the unique polypeptides to recombine, a luminescent signal is generated. The invention also includes vector encoding these proteins, cells expressing these proteins, compositions, system and kits.

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Brooklyn, NY, United States of America

Maria Hauge Pedersen