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Related Concept Videos

Cotranslational Protein Translocation01:20

Cotranslational Protein Translocation

Translocation of proteins across membranes is an ancient process that occurs even in bacteria and archaebacteria. In fact, the components of the translocation machinery are still conserved between prokaryotes and eukaryotes.
Sec61 channel partners for cotranslational translocation
During cotranslational translocation, the Sec61 channel partners with the signal recognition particle (SRP), the signal recognition particle receptor (SR), and the ribosomes to transport the nascent polypeptide chain...
Protein Translocation Machinery on the ER Membrane01:28

Protein Translocation Machinery on the ER Membrane

The translocon complex situated on the ER membrane is the main gateway for the protein secretory pathway. It facilitates the transport of nascent peptides into the ER lumen and their insertion into the ER membrane.
Sec61 protein conducting channel
In eukaryotes, the translocon complex comprises a core heterotrimeric translocator channel called the Sec61 complex. This channel includes three transmembrane proteins, Sec61α, Sec61β, and Sec61γ, and is the largest subunit of the translocon complex.
Phosphoinositides and PIPs01:42

Phosphoinositides and PIPs

Phosphoinositides are a group of phospholipids containing a glycerol backbone with two fatty acid chains and a phosphate attached to a myoinositol sugar ring. The inositol head group extends into the cytoplasm, where it is modified by adding phosphate groups to form phosphatidylinositol phosphates or PIPs.
Different phosphoinositides are synthesized and recruited on the cytosolic face of the plasma membrane. The localization of specific phosphoinositides concentrated in separate membrane...
Introduction to Membrane Traffic01:44

Introduction to Membrane Traffic

The ER, Golgi apparatus, endosomes, and lysosomes work in tandem to modify, sort, and package proteins and lipids. An integrated membrane trafficking network facilitates the back and forth shuttling of molecules within different organelles in the same cell or across the cell membrane.
The transport of soluble and membrane proteins is mediated by transport vesicles that collect cargo from one cellular compartment and deliver it to another by fusing with the target organelle membrane. The Rab...
Intracellular Signaling Affects Focal Adhesions01:17

Intracellular Signaling Affects Focal Adhesions

Integrins act both as extracellular input receivers and as intracellular processing activators. As their name suggests, integrins are entirely integrated into the membrane structure. Their hydrophobic membrane-spanning regions interact with the phospholipid bilayer's hydrophobic region. These membrane receptors provide extracellular attachment sites for effectors like hormones and growth factors. They activate intracellular response cascades when their effectors are bound and active.
Some...
Rab Cascades01:25

Rab Cascades

Rab GTPases act in a regulated cascade during membrane fusion, helping the lipid bilayers mix. The Rab family of proteins are active when bound to GTP, and inactive when bound to GDP. Hence, they act as guanine nucleotide-dependent molecular switches. Rab-GTP recognizes and binds to long or short-range tethering proteins to capture the target vesicle. These tethers coordinate with SNAREs on the vesicle and the target membrane to assemble the trans SNARE complex that locks the mixing bilayers.

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Related Experiment Video

Updated: Jul 19, 2026

Image-Based Methods to Study Membrane Trafficking Events in Stomatal Lineage Cells
11:31

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Published on: May 12, 2023

Kainate receptor-interacting proteins and membrane trafficking.

F Coussen1, C Mulle

  • 1CNRS UMR 5091, Laboratoire Physiologie Cellulaire de la Synapse, Bordeaux Neuroscience Institute, University of Bordeaux, 33077 Bordeaux Cedex, France.

Biochemical Society Transactions
|October 21, 2006
PubMed
Summary

Kainate receptors

Area of Science:

  • Neuroscience
  • Molecular Biology
  • Cell Biology

Background:

  • Kainate receptors exhibit significant diversity through subunits and splice variants.
  • The C-terminal cytoplasmic tail of kainate receptors is crucial for protein interactions.
  • Understanding kainate receptor trafficking is key to neuronal function.

Purpose of the Study:

  • To review the regulation of kainate receptor trafficking.
  • To identify and characterize protein partners involved in kainate receptor trafficking.
  • To elucidate the functional significance of kainate receptor subunit and splice variant diversity.

Main Methods:

  • Literature review of studies on kainate receptor trafficking.
  • Analysis of protein-protein interactions at the C-terminal tail.

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Last Updated: Jul 19, 2026

Image-Based Methods to Study Membrane Trafficking Events in Stomatal Lineage Cells
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  • Functional characterization of interacting partners.
  • Main Results:

    • Kainate receptor trafficking is regulated by interactions with specific protein partners.
    • Distinct subsets of protein partners mediate differential trafficking to neuronal compartments.
    • The diversity of kainate receptor subunits and splice variants influences their interactions and localization.

    Conclusions:

    • Protein interactions with the C-terminal tail are critical for kainate receptor trafficking.
    • Targeting these interactions offers potential for modulating neuronal function.
    • Further research into kainate receptor-interacting partners will advance our understanding of synaptic plasticity and neurological disorders.