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Calcineurin

Trevor P Creamer1

  • 1Center for Structural Biology, Department of Molecular & Cellular Biochemistry, 741 S. Limestone Street, Lexington, KY, 40536-0509, USA. Trevor.Creamer@uky.edu.

Cell Communication and Signaling : CCS
|August 30, 2020
PubMed

Insights

Calcineurin, a key enzyme in calcium signaling, is activated by calcium-bound calmodulin. This review details calcineurin activation mechanisms and identifies areas needing further research.

Area of Science:

  • Biochemistry
  • Cell Biology
  • Molecular Signaling

Background:

  • Calcineurin is a serine/threonine phosphatase central to calcium signaling pathways.
  • It regulates numerous substrates, including transcription factors, receptors, ion channels, and mitochondrial/microtubule-associated proteins.
  • Calcineurin's activation is triggered by increased intracellular calcium levels.

Purpose of the Study:

  • To review the known mechanisms of calcineurin activation.
  • To highlight the aspects of calcineurin activation that remain poorly understood.
  • To provide a comprehensive overview of calcineurin's role in cellular processes.

Main Methods:

  • Literature review of studies on calcineurin activation.
  • Analysis of biochemical and cellular data related to calcineurin function.
  • Focus on the interaction between calcineurin, calcium, and calmodulin.

Main Results:

  • Calcineurin activation requires calmodulin binding to its regulatory domain upon calcium influx.
  • The precise molecular details of this activation process are not fully elucidated despite extensive research.
  • Calcineurin's substrates are diverse, indicating its broad impact on cellular functions.

Conclusions:

  • Calcineurin is a critical mediator of calcium-dependent cellular responses.
  • Further research is needed to fully understand the intricacies of calcineurin activation.
  • Elucidating calcineurin activation mechanisms could reveal new therapeutic targets.
Keywords:
CalcineurinCalciumCalmodulinChannelsIntrinsically-disordered regionMicrotubulesMitochondriaReceptorsTranscription

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