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Related Concept Videos

MAPK Signaling Cascades01:07

MAPK Signaling Cascades

Mitogen-activated protein kinase, or MAPK pathway, activates three sequential kinases to regulate cellular responses such as proliferation, differentiation, survival, and apoptosis. The canonical MAPK pathway starts with a mitogen or growth factor binding to an RTK. The activated RTKs stimulate Ras, which recruits Raf or MAP3 Kinase (MAPKKK), the first kinase of the MAPK signaling cascade. Raf further phosphorylates and activates MEK or MAP2 Kinases (MAPKK), which in turn phosphorylates MAP...
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Cyclic Adenosine Monophosphate (cAMP) is an essential second messenger that activates protein kinase A (PKA) and regulates various biological processes. A single epinephrine molecule binds to GPCR and activates several heterotrimeric G proteins, each stimulating multiple adenylyl cyclase, amplifying the signal, and synthesizing large numbers of cAMP molecules. Small changes in cAMP concentration affect PKA activity. The binding of four cAMP molecules induces a conformational change in PKA,...
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Related Experiment Video

Updated: May 23, 2026

TRAP-rc, Translating Ribosome Affinity Purification from Rare Cell Populations of Drosophila Embryos
10:26

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Published on: September 10, 2015

New insights into TRAP1 pathway.

Danilo Swann Matassa1, Maria Rosaria Amoroso, Francesca Maddalena

  • 1Department of Biochemistry and Medical Biotechnologies, University of Naples Federico II, Via Pansini 5, Naples 80131, Italy.

American Journal of Cancer Research
|March 21, 2012
PubMed
Summary

Tumor Necrosis Factor Receptor-Associated Protein 1 (TRAP1) is a mitochondrial chaperone protecting cells from stress. Recent findings reveal its complex roles in endoplasmic reticulum stress, calcium homeostasis, and potential for personalized cancer therapies.

Keywords:
HSP90TRAP1apoptosiscancerdrug resistanceendoplasmic reticulummitochondriastress

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Telomerase Activity in the Various Regions of Mouse Brain: Non-Radioactive Telomerase Repeat Amplification Protocol (TRAP) Assay
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Published on: September 2, 2014

Area of Science:

  • Mitochondrial biology
  • Cellular stress response
  • Molecular chaperones

Background:

  • Tumor Necrosis Factor Receptor-Associated Protein 1 (TRAP1) is a mitochondrial heat shock protein.
  • TRAP1 regulates mitochondrial integrity and protects against DNA damage and apoptosis.
  • Emerging research highlights novel client proteins and diverse subcellular functions of TRAP1.

Purpose of the Study:

  • To review the multifaceted roles of TRAP1 in cellular protection.
  • To emphasize recent discoveries regarding TRAP1's involvement in Endoplasmic Reticulum stress and calcium homeostasis.
  • To propose a preliminary "TRAP1 signature" and discuss future research directions.

Main Methods:

  • Literature review of recent studies on TRAP1.
  • Analysis of TRAP1's interactions with client proteins like cyclophilin D and Sorcin.
  • Discussion of TRAP1's subcellular localization and functional implications.

Main Results:

  • TRAP1 plays a cytoprotective role against various stress inducers.
  • TRAP1 regulates Endoplasmic Reticulum stress and protein quality control.
  • TRAP1 influences calcium homeostasis via its client protein Sorcin.

Conclusions:

  • TRAP1 exhibits complex, multi-localized functions beyond mitochondrial integrity.
  • Understanding TRAP1's mechanisms can inform personalized anticancer treatments.
  • Targeting TRAP1 pathways offers potential for improved antitumor activity and drug resistance reversal.