Functional GPCR Assays for Drug Discovery

Accelerate GPCR Screening, Profiling, and Mechanism-of-Action Studies with Functional GPCR Assays

Gain comprehensive insight into on-target efficacy, off-target activity, and ligand-biased signaling with Eurofins Discovery’s GPCR functional assay solutions. Our scalable cellular assays support early discovery through lead optimization with rapid turnaround times and high-throughput screening capabilities.

gpcrMAX Target Distribution by GPCR Family

Why Choose Eurofins Discovery for Your Functional GPCR Research?

  • Broad GPCR coverage across hundreds of validated targets
  • Multiple functional readouts, including β-arrestin recruitment, cAMP, calcium mobilization, IP1 accumulation, internalization, and more
  • Flexible assay formats for agonist, antagonist, PAM, and NAM evaluation
  • Compatible with diverse modalities, including small molecules, biologics, peptides, conjugates, PROTAC®s, and controlled substances
  • High-throughput screening and profiling capabilities for large compound libraries
  • Custom assay development tailored to your program’s needs
  • Expedited turnaround options available for select assays
GPCR Functional Assay Panels
Service Panel Description # Targets # Assays Assay Mode Functional Readouts
gpcrMAX Broad GPCR profiling 168 336 AG, AN β-arrestin recruitment
orphanMAX Orphan GPCR screening and deorphanization 73 73 AG β-arrestin recruitment, deorphanization
Chemokine Chemokine receptor profiling 19 38 AG, AN β-arrestin recruitment, ligand bias characterization
obesityLITE Obesity and metabolic receptor screening 13 25 AG, AN β-arrestin recruitment, second messenger signaling, dimerization
Peptide Hormone Class B Class B GPCR screening 20 20 AG Second messenger signaling
gpcrBIAS Ligand bias characterization Choice of >150 Choice of >150 AG, AN β-arrestin recruitment, second messenger signaling, internalization
GPCR Solutions “a la carte”
Please inquire
Tailored target and assay selection Custom Custom AG, AN, PAM, NAM β-arrestin recruitment and second messenger assays including cAMP modulation, calcium mobilization, IP1, internalization

AG = Agonist, AN = Antagonist, PAM = Positive Allosteric Modulator, NAM = Negative Allosteric Modulator, SP = Single Point, DRC = Dose Response Curve

GPCR Functional Assays
Assay Type Number of Assays Assay Modes Available Applications
β-arrestin recruitment > 336 Agonist, Antagonist, PAM and NAM modes
Some assays offered in Inverse Agonist mode
Ligand bias analysis, antagonist screening, and profiling of GPCRs including orphan receptors.
cAMP > 390 Agonist, Antagonist, PAM and NAM modes Cell-based cAMP assays to monitor GPCR function following small molecule or biologic binding.
Calcium Mobilization >200 Agonist, Antagonist and PAM modes Fluorescent dye-based assays to measure calcium mobilization in cell lines as a direct indication of GPCR or ion channel activation or inhibition.
Internalization > 298 Agonist, Antagonist and PAM modes
Assays measure total internalization or activated internalization
Measures GPCR internalization, desensitization, recycling, and novel compound pharmacology without imaging or antibodies.
IP1 Accumulation >200 Agonist and Antagonist modes Investigates IP-1 and Ca2+ GPCR-related pathways (Gq and Gα15).
Pharmacotrafficking 7 Agonist mode Identifies pharmacochaperones that stabilize and correct disease-relevant mutant GPCRs, ion channels, and transporters.
GTPgammaS functional 95 Agonist, inverse agonist & antagonist modes Evaluates early GPCR activation and distinguishes agonists, antagonists, inverse agonists, and allosteric modulators.
Human β-Cell Glucose-Stimulated Insulin Secretion (GSIS) 3 Agonist and Antagonist modes Evaluates glucose-stimulated insulin secretion, receptor activation, and cAMP signaling in human pancreatic β-cells.
Custom Assays available: For EFC, please inquire. For TR-FRET/HTRF, please inquire.
Key Areas

G-protein Coupled Receptors (GPCRs) play an important role in disease pathogenesis and constitute the largest family of transmembrane proteins in the human genome, making them one of the most attractive therapeutic target classes.

Meet the challenges of today's hit finding programs with Eurofins' GPCR comprehensive service offering and expertise

Features