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Related Concept Videos

The Role of Ion Channels in Neuronal Computation01:19

The Role of Ion Channels in Neuronal Computation

A postsynaptic neuron usually receives numerous impulses from several other presynaptic neurons. The axon hillock of the postsynaptic neuron integrates all these signals and determines the likelihood of firing an action potential.
Sometimes a single EPSP is strong enough to induce an action potential in the postsynaptic neuron. However, multiple presynaptic inputs must often create EPSPs around the same time for the postsynaptic neuron to be sufficiently depolarized to fire an action potential.
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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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Cytoskeletal Accessory Proteins

The cytoskeleton is an essential cell component that plays several structural and functional roles. However, the filaments that make up the cytoskeleton cannot function independently and depend on the accessory or ancillary proteins to effectively carry out their function. Accessory proteins associate with cytoskeletal filaments and their monomers, aiding filament formation and function. They also help in the cross-communication among cytoskeletal filaments. Cytoskeletal accessory proteins are...
Chemical Synapses01:26

Chemical Synapses

Chemical synapses are specialized sites between two neurons or between a neuron and a non-neuronal cell like a muscle, glandular or sensory cell.
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Related Experiment Video

Updated: May 18, 2026

Inhibitory Synapse Formation in a Co-culture Model Incorporating GABAergic Medium Spiny Neurons and HEK293 Cells Stably Expressing GABAA Receptors
07:51

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Published on: November 14, 2014

Dancing partners at the synapse: auxiliary subunits that shape kainate receptor function.

Bryan A Copits1, Geoffrey T Swanson

  • 1Department of Molecular Pharmacology and Biological Chemistry, Northwestern University Feinberg School of Medicine, Chicago, Illinois 60611, USA.

Nature Reviews. Neuroscience
|September 6, 2012
PubMed
Summary

Kainate receptors modulate synaptic transmission. The auxiliary subunits, neuropilin and tolloid-like 1 (NETO1) and NETO2, explain their slow kinetics and localization.

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Last Updated: May 18, 2026

Inhibitory Synapse Formation in a Co-culture Model Incorporating GABAergic Medium Spiny Neurons and HEK293 Cells Stably Expressing GABAA Receptors
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Area of Science:

  • Neuroscience
  • Molecular Biology
  • Receptor Pharmacology

Background:

  • Kainate receptors are ionotropic glutamate receptors crucial for synaptic modulation.
  • Their slow kinetic properties in neurons have been difficult to explain using recombinant receptors.

Purpose of the Study:

  • To investigate the role of auxiliary subunits in shaping kainate receptor function.
  • To reconcile the biophysical properties of neuronal kainate receptors with recombinant models.

Main Methods:

  • Identification and characterization of auxiliary kainate receptor subunits.
  • Biophysical analysis of recombinant kainate receptors in the presence of auxiliary subunits.
  • Investigation of synaptic localization of kainate receptors.

Main Results:

  • Neuropilin and tolloid-like 1 (NETO1) and NETO2 proteins identified as key auxiliary subunits.
  • NETO1 and NETO2 significantly influence the kinetic properties of kainate receptors.
  • These subunits also affect the synaptic localization of kainate receptors.

Conclusions:

  • NETO1 and NETO2 are essential for the distinct physiological roles of neuronal kainate receptors.
  • Auxiliary subunits provide a molecular explanation for the slow kinetics of kainate receptors.
  • Understanding these interactions is key to kainate receptor pharmacology and function.