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[Autocatalytic enzyme reactions]

S D Varfolomeev, S O Bachurin, Ch D Toaĭ

    Molekuliarnaia Biologiia
    |March 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    This study analyzes enzymatic reactions in autocatalytic mode, differentiating mechanisms based on enzyme and substrate concentrations. A new method determines active enzyme centers in product-activated systems.

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    Area of Science:

    • Biochemistry
    • Chemical Kinetics

    Context:

    • Enzymatic reactions often exhibit autocatalysis, where reaction products influence reaction rates.
    • Understanding these complex kinetics is crucial for various biological and chemical processes.

    Purpose:

    • To analyze kinetic aspects of enzymatic reactions in autocatalytic mode.
    • To differentiate between mechanisms involving proenzyme-enzyme interaction and product activation.
    • To develop a method for determining active enzyme center concentration in product-activated systems.

    Summary:

    • The study presents kinetic analysis of two autocatalytic mechanisms: proenzyme-enzyme interaction and product activation.
    • It demonstrates that these mechanisms differ in their dependence on enzyme and substrate concentrations.
    • A novel method is introduced for quantifying active enzyme centers when activation is mediated by the reaction product.

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    Impact:

    • Provides a clearer understanding of autocatalytic enzymatic reaction kinetics.
    • Offers a practical method for active enzyme center determination in specific systems.
    • Illustrates findings with real-world examples like trypsin-trypsinogen and bacterial hydrogenases.