Luciferase complementation based-detection of G-protein-coupled receptor activity

Area of Science:

• Biochemistry and Molecular Biology
• Pharmacology
• Biotechnology

Background:

• Protein complementation assays (PCA) are versatile tools in pharmacology for studying protein interactions and signaling pathways.
• Detecting G protein-coupled receptor (GPCR) activity is crucial for drug discovery and screening.
• The engineered luciferase NanoLuc offers potential for developing novel PCA-based assays.

Purpose of the Study:

• To identify a novel split site for the NanoLuc luciferase.
• To demonstrate the utility of a NanoLuc-based PCA for detecting GPCR activity.
• To explore the application of this novel PCA in pharmacological screening systems.

Main Methods:

• Identification of a new NanoLuc split site.
• Construction of fusion proteins incorporating split NanoLuc fragments.
• Validation of the NanoLuc PCA system using GPCR activity detection.

Main Results:

• A novel split site for NanoLuc was successfully identified.
• The split NanoLuc construct effectively detected GPCR activity.
• The developed PCA system showed applicability in various pharmacological screening contexts.

Conclusions:

• The novel split NanoLuc construct provides a new platform for PCA development.
• This system enhances capabilities for drug screening targeting GPCRs.
• The NanoLuc PCA offers a versatile tool for diverse pharmacological research applications.