Related Experiment Video
Updated: May 31, 2025

09:53
Real-time In Vitro Monitoring of Odorant Receptor Activation by an Odorant in the Vapor Phase
Published on: April 23, 2019
7.0K
Deciphering olfactory receptor binding mechanisms: a structural and dynamic perspective on olfactory receptors.
Jingtao Wang1,2, Qidong Zhang2, Wu Fan2
1College of Chemistry, Zhengzhou University, Zhengzhou, Henan, China.
Frontiers in Molecular Biosciences
|January 23, 2025
Summary
This review explores how odor molecules bind to olfactory receptors (GPCRs) using structural biology and molecular dynamics simulations. Understanding these binding mechanisms offers new insights into smell perception and future research directions.
Area of Science:
- Olfactory receptor research
- Structural biology
- Computational chemistry
Background:
- Olfactory receptors (GPCRs) research began in the 1950s, initially relying on behavioral studies and gene expression analysis.
- Historical studies of olfactory receptors were limited to behavioral observations and gene/protein expression analysis in model organisms.
Purpose of the Study:
- To analyze research on odor molecule-olfactory receptor binding mechanisms.
- To provide a comprehensive review from structural biology and molecular dynamics simulation perspectives.
- To offer an outlook on future research in olfactory receptor sensory mechanisms.
Main Methods:
- Cryo-electron microscopy for determining olfactory receptor structures.
- Molecular dynamics simulations for predicting and exploring odorant binding.
- Review of existing scientific literature on olfactory receptor binding.
Main Results:
- Cryo-electron microscopy has enabled detailed structural analysis of insect and human olfactory receptors.
- Molecular dynamics simulations facilitate the prediction and exploration of odorant-receptor interactions.
- Structural and simulation approaches provide new insights into olfactory receptor binding mechanisms.
Conclusions:
- Structural biology and molecular dynamics simulations are key to understanding olfactory receptor function.
- Advances in these techniques offer unprecedented insights into the sense of smell.
- Future research will likely focus on refining these methods for deeper understanding and novel applications.
Related Concept Videos
G-protein Coupled Receptors
115.2K
G-protein coupled receptors are ligand binding receptors that indirectly affect changes in the cell. The actual receptor is a single polypeptide that transverses the cell membrane seven times creating intracellular and extracellular loops. The extracellular loops create a ligand specific pocket which binds to neurotransmitters or hormones. The intracellular loops holds onto the G-protein.
115.2K
G Protein-coupled Receptors
11.2K
G Protein-Coupled Receptors or GPCRs are membrane-bound receptors that transiently associate with heterotrimeric G proteins and induce an appropriate response to sensory stimuli such as light, odors, hormones, cytokines, or neurotransmitters.
GPCRs are also called heptahelical, 7TM, or serpentine receptors, and consist of seven (H1-H7) transmembrane alpha-helices that span the bilayer to form a cylindrical core. The transmembrane helices are connected by three extracellular loops and three...
GPCRs are also called heptahelical, 7TM, or serpentine receptors, and consist of seven (H1-H7) transmembrane alpha-helices that span the bilayer to form a cylindrical core. The transmembrane helices are connected by three extracellular loops and three...
11.2K
G-Protein Gated Ion Channels
4.5K
GPCRs are primarily responsible for our sense of smell, taste, and vision. The binding of a sensory stimulus activates GPCR to stimulate effector proteins, many of which are ion channels in the sensory organs. GPCRs modulate the opening and closing of the target ion channels either directly by binding them, or by releasing second messengers that activate these channels. As ions move across the membrane, the membrane potential is altered, which induces an appropriate response.
Sensory...
Sensory...
4.5K
Introduction to Special Senses
5.5K
Sensory receptors play an integral part in comprehending our external and internal environments. They receive diverse stimuli, converting them into the nervous system's electrochemical signals. This conversion occurs as the stimulus alters the sensory neuron's cell membrane potential, instigating the generation of an action potential. This action potential is subsequently transmitted to the central nervous system (CNS), which integrates with other sensory data or higher cognitive...
5.5K
Tactile and Chemical Senses
278
Tactile senses encompass touch, temperature, and pain, each mediated by specific receptors. Touch receptors detect mechanical energy or pressure against the skin. Sensory fibers from these receptors enter the spinal cord and relay information to the brain stem. Here, most fibers cross over to the opposite side of the brain. The touch information then moves to the thalamus, which projects a map of the body's surface onto the somatosensory areas of the parietal lobes in the cerebral cortex.
278
Ligand Binding Sites
12.7K
Proteins are dynamic macromolecules that carry out a wide variety of essential processes; however, the activities of most proteins depend on their interactions with other molecules or ions, known as ligands.
Protein-ligand interactions are quite specific; even though numerous potential ligands surround a cellular protein at any given time, only a particular ligand can bind to that protein. Moreover, a ligand binds only to a dedicated area on the surface of the protein, known as the...
Protein-ligand interactions are quite specific; even though numerous potential ligands surround a cellular protein at any given time, only a particular ligand can bind to that protein. Moreover, a ligand binds only to a dedicated area on the surface of the protein, known as the...
12.7K

