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[Calcium. Molecular mechanisms of cellular function].

D Marmé

    Die Naturwissenschaften
    |March 1, 1985
    PubMed
    Summary

    Cellular calcium regulation is vital for cell signaling and physiology. Specific proteins like calmodulin and oncogene products modulate these calcium-dependent processes.

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    Area of Science:

    • Biochemistry
    • Cell Biology
    • Molecular Biology

    Context:

    • Calcium ions (Ca2+) are critical intracellular messengers.
    • Cellular signaling pathways rely on precise calcium concentration control.
    • Calcium homeostasis is fundamental to physiological processes.

    Purpose:

    • To elucidate the role of calcium in cellular signal transduction.
    • To describe the function of calmodulin as a calcium receptor.
    • To highlight calcium's regulatory role in protein kinase C and phosphatidylinositol metabolism.

    Summary:

    • Calcium is essential for signal transduction, with its concentration tightly regulated.
    • Calmodulin acts as a primary calcium receptor, relaying signals to enzymes.
    • Protein kinase C and receptor-stimulated phosphatidylinositol metabolism are key calcium-regulated pathways, with oncogene products influencing the latter.

    Impact:

    • Understanding calcium's role is crucial for comprehending cellular physiology.
    • This research provides insights into molecular mechanisms of cell signaling.
    • Identifies potential targets for therapeutic interventions related to calcium dysregulation and oncogenesis.

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