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Related Concept Videos

Ligand-Gated Ion Channel Receptor: Gating Mechanism01:30

Ligand-Gated Ion Channel Receptor: Gating Mechanism

Ligand-gated ion channels are transmembrane proteins that play a vital role in intercellular communication and functions of the nervous system. They allow the influx of ions across the membrane once the neurotransmitter binds, allowing the subsequent transmission of electrical excitation across the neurons. Other ligand-gated ion channels, like the γ-aminobutyric acid (GABA) receptor, permit anions like chloride into the cells on the binding of the GABA molecule. Their entry into the cell...
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Neurons communicate with one another by passing on their electrical signals to other neurons. A synapse is the location where two neurons meet to exchange signals. At the synapse, the neuron that sends the signal is called the presynaptic cell, while the neuron that receives the message is called the postsynaptic cell. Note that most neurons can be both presynaptic and postsynaptic, as they both transmit and receive information.
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The Equilibrium Binding Constant and Binding Strength

The equilibrium binding constant (Kb) quantifies the strength of a protein-ligand interaction. Kb can be calculated as follows when the reaction is at equilibrium:
The Equilibrium Binding Constant and Binding Strength02:18

The Equilibrium Binding Constant and Binding Strength

The equilibrium binding constant (Kb) quantifies the strength of a protein-ligand interaction. Kb can be calculated as follows when the reaction is at equilibrium:
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Neurochemical transmission, the conduction of electrical impulses between neurons mediated by neurotransmitters, plays a vital role in various physiological processes. Autonomic drugs exert their effects by modulating neurotransmission within the autonomic nervous system. For instance, drugs such as hemicholinium block the precursor uptake necessary for synthesizing acetylcholine, an essential autonomic neurotransmitter. Following synthesis, neurotransmitters are stored in vesicles. Metyrosine...
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Ligand-gated Ion Channels

Ligand-gated ion channels are transmembrane proteins with a channel for ions to pass through and a binding site for a ligand. The channel opens only when a ligand attaches to the binding site.
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Ligand-gated ion channels fall into three subfamilies. The 'Cys-loop' includes the nicotinic acetylcholine receptors, γ-aminobutyric acid (GABA), glycine, and 5-hydroxytryptamine receptors. The second one is the 'Pore-loop' channels that include the...

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Related Experiment Video

Updated: Jun 24, 2026

BS3 Chemical Crosslinking Assay: Evaluating the Effect of Chronic Stress on Cell Surface GABAA Receptor Presentation in the Rodent Brain
05:17

BS3 Chemical Crosslinking Assay: Evaluating the Effect of Chronic Stress on Cell Surface GABAA Receptor Presentation in the Rodent Brain

Published on: May 26, 2023

Neuroscience: toward unbinding the binding problem.

David Whitney1

  • 1The Department of Psychology, and The Center for Mind and Brain, University of California, Davis, CA 95618, USA. dwhitney@ucdavis.edu

Current Biology : CB
|March 27, 2009
PubMed
Summary
This summary is machine-generated.

The brain solves the binding problem by integrating sensory information. Advances in psychophysics and fMRI analysis are key to understanding this complex neural process.

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Psychophysics

Background:

  • The neural mechanisms underlying perceptual binding remain largely unknown.
  • Understanding how the brain integrates disparate sensory inputs into a unified perception is a fundamental challenge in neuroscience.

Discussion:

  • Recent psychophysical studies explore the subjective experience of binding.
  • Novel functional magnetic resonance imaging (fMRI) analysis techniques offer new ways to investigate neural correlates of binding.

Key Insights:

  • The convergence of psychophysics and advanced fMRI analysis is crucial for progress.
  • These interdisciplinary approaches are beginning to illuminate the brain's solution to the binding problem.

Outlook:

  • Future research will likely leverage these combined methodologies to further unravel perceptual integration.
  • Continued development in neuroimaging and psychophysical paradigms promises deeper insights into conscious experience.