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Related Experiment Video

Updated: Jun 19, 2026

Visualizing the Conformational Dynamics of Membrane Receptors Using Single-Molecule FRET

Visualizing the Conformational Dynamics of Membrane Receptors Using Single-Molecule FRET

Published on: August 17, 2022

A binding question: the evolution of the receptor concept.

Andreas-Holger Maehle¹

¹Centre for the History of Medicine and Disease, Wolfson Research Institute, Durham University, Queen's Campus, Stockton TS176BH, United Kingdom. a.h.maehle@durham.ac.uk

|October 20, 2009

Summary

The concept of specific cell receptors, proteins binding to drugs or hormones, is now fundamental in medicine. However, widespread acceptance of these drug-specific receptors only occurred relatively recently, despite early theories.

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Area of Science:

Pharmacology
Cell Biology
Medicinal Chemistry

Background:

The existence of specific receptors on or within cells is a foundational concept in modern pharmacology and medicine.
Receptors are defined as proteins that bind specifically to drugs, hormones, or chemical messengers, mediating physiological effects.
Despite their current acceptance, the notion of drug-specific receptors faced significant skepticism until the mid-20th century.

Observation:

The idea of specific cellular binding sites for external agents has historical roots.
Considerable scientific debate and doubt regarding the existence of these specific receptors persisted into the 1960s.
The widespread acceptance of the receptor concept was a gradual process, not immediate.

Findings:

The emergence and evolution of the receptor concept were marked by periods of skepticism and debate.
The establishment of the receptor theory required substantial evidence and conceptual shifts within the scientific community.
Understanding the historical trajectory reveals the challenges in scientific paradigm shifts.

Implications:

The historical acceptance of the receptor concept highlights the dynamic nature of scientific understanding.
Recognizing the evolution of this concept is crucial for appreciating current pharmacological principles.
The journey to establish the receptor theory underscores the importance of rigorous scientific inquiry and evidence-based acceptance.