Related Experiment Video
Updated: Jan 29, 2026

Quantifying Agonist Activity at G Protein-coupled Receptors
Published on: December 26, 2011
Can Adding Constitutive Receptor Activity Redefine Biased Signaling Quantification?
Bin Zhou1, David A Hall2, Jesús Giraldo1
1Laboratory of Molecular Neuropharmacology and Bioinformatics, Unitat de Bioestadística and Institut de Neurociències, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain; Instituto de Salud Carlos III, Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Spain; Unitat de Neurociència Traslacional, Parc Taulí Hospital Universitari, Institut d'Investigació i Innovació Parc Taulí (I3PT), Institut de Neurociències, Universitat Autònoma de Barcelona, Spain.
Abstract:
Biased signaling, the differential activation of distinct signaling pathways, is currently at the center of pharmacology. Reliable characterization of biased ligands requires robust scales applicable to all ligand classes: agonists, neutral antagonists, and inverse agonists. To this end, constitutive receptor activity should be included in the models.
Related Concept Videos
Confirmation Biases
Signal Sequences and Sorting Receptors
Hindsight Biases
Insulin: The Receptor and Signaling Pathways
Bias
In statistics, a sampling bias is created when a sample is collected from a population, and some members of the population are not as likely to be chosen as others (remember, each member...
Constitutional Isomers of Alkanes
The linear isomer of an alkane is prefixed by the term “n”; hence a linear isomer of pentane is known as n-pentane. Based on the type of branching, some of the...

