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Related Experiment Videos

Calcineurin: form and function.

F Rusnak1, P Mertz

  • 1Section of Hematology Research and Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota 55905, USA. rusnak@mayo.edu

Physiological Reviews
|October 4, 2000
PubMed
Summary
This summary is machine-generated.

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Calcineurin is a key enzyme regulating cellular processes via calcium signaling. Its structure and catalytic mechanism are conserved across species, offering potential for new drug development.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Cell Biology

Background:

  • Calcineurin is a Ca(2+)- and calmodulin-dependent serine/threonine protein phosphatase crucial for cellular signaling.
  • It comprises a catalytic subunit (calcineurin A) and a Ca(2+)-binding subunit (calcineurin B), conserved from yeast to mammals.

Observation:

  • Calcineurin's function is modulated by immunosuppressants like cyclosporin A and FK506.
  • Genetic disruption in model organisms reveals its diverse biological roles.
  • Recent structural and mechanistic studies illuminate its catalytic activity.

Findings:

  • The dinuclear metal ion cofactor is vital for calcineurin's phosphate ester hydrolysis.
  • Metal ion redox chemistry plays a role in its catalytic mechanism.

Related Experiment Videos

  • Understanding calcineurin's structure-function relationship is advancing.

    • Implications:

    • Insights into calcineurin's mechanism may lead to novel therapeutic inhibitors.
    • Calcineurin remains a significant target for understanding calcium-dependent pathways.
    • Further research can elucidate calcineurin's role in various physiological and pathological conditions.