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Mouse lymphoma cells with mutations of cyclic AMP-dependent protein kinase

P Coffino

    National Cancer Institute Monograph
    |May 1, 1978
    PubMed

    Insights

    Researchers studied cyclic AMP (cAMP) signaling in S49 cells. Mutants with defects in cAMP-dependent protein kinase were identified and characterized, providing insights into cellular responses.

    Area of Science:

    • Cellular biology
    • Molecular genetics
    • Signal transduction

    Background:

    • S49 cells are sensitive to cyclic AMP (cAMP) mediated cell death.
    • Mutants with altered cAMP signaling can be selected based on this sensitivity.
    • Defects in cAMP-dependent protein kinase represent one class of such mutants.

    Purpose of the Study:

    • To select and characterize mutants with defects in cAMP signaling pathways.
    • To investigate the role of cAMP-dependent protein kinase in cellular responses.
    • To understand the genetic and biochemical basis of cAMP signaling.

    Main Methods:

    • Selection of S49 cell mutants resistant to cAMP-induced killing.
    • Genetic characterization of selected mutants.
    • Biochemical analysis of cAMP-dependent protein kinase function.

    Main Results:

    • Identification of multiple classes of mutants affecting cAMP generation or response.
    • Extensive genetic and biochemical characterization of mutants deficient in cAMP-dependent protein kinase.
    • Detailed analysis of the cAMP-dependent protein kinase pathway.

    Conclusions:

    • S49 cell mutants provide a powerful tool for dissecting cAMP signaling.
    • Mutations in cAMP-dependent protein kinase significantly impact cellular cAMP responses.
    • Comprehensive characterization of these mutants deepens understanding of cAMP-mediated cellular processes.

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