Related Experiment Video

Updated: May 21, 2026

A TIRF Microscopy Technique for Real-time, Simultaneous Imaging of the TCR and its Associated Signaling Proteins
16:10

A TIRF Microscopy Technique for Real-time, Simultaneous Imaging of the TCR and its Associated Signaling Proteins

Published on: March 22, 2012

TCR Signaling Emerges from the Sum of Many Parts

Michael S Kuhns1, Mark M Davis

  • 1Department of Immunobiology, The University of Arizona College of Medicine Tucson, AZ, USA.

Frontiers in Immunology
|June 28, 2012
PubMed

Insights

T cell receptor (TCR) signaling begins with molecular architecture that relays information from the TCR-pMHC interface to CD3 molecules. This process brings kinases together to initiate and sustain signaling, as detailed by recent advances.

Area of Science:

  • Immunology
  • Molecular Biology
  • Cell Signaling

Background:

  • T cell receptor (TCR) signaling is crucial for adaptive immunity.
  • Understanding the initial molecular events is key to deciphering T cell activation.

Purpose of the Study:

  • To elucidate the molecular architecture and interactions initiating T cell receptor signaling.
  • To review recent advances in understanding TCR-CD3 complex assembly and function.

Main Methods:

  • Review of recent literature on TCR signaling.
  • Analysis of molecular mechanisms underlying TCR-pMHC interaction and downstream signaling.

Main Results:

  • The molecular machinery must effectively relay signals from the TCR-pMHC interface to CD3 signaling substrates.
  • Proximity of kinases to substrates is essential for initiating and sustaining signaling cascades.

Conclusions:

  • Recent advances have significantly improved our understanding of the complex machinery governing TCR signaling initiation.
  • The precise spatial organization of signaling components is critical for T cell activation.
Keywords:
CD3TCRco-receptorcomplexmulti-molecular machinerytriggering

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