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Trypsin/chymotrypsin inhibitors from millets.

T N Pattabiraman

    Advances in Experimental Medicine and Biology
    |January 1, 1986
    PubMed
    Summary
    This summary is machine-generated.

    Millet proteinase inhibitors show varied properties and actions against human and animal pancreatic enzymes. Their inhibitory activity changes during plant growth, influenced by substrate interactions.

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    Area of Science:

    • Biochemistry
    • Plant Science
    • Enzymology

    Background:

    • Proteinase inhibitors are crucial plant defense compounds.
    • Millets are important small-seeded cereal grains globally.
    • Understanding their enzymatic interactions is vital for nutritional and agricultural applications.

    Purpose of the Study:

    • To compare proteinase inhibitor properties across various millet species.
    • To investigate the dynamic changes in inhibitory activity during plant development.
    • To elucidate the interaction mechanisms between millet inhibitors and pancreatic enzymes.

    Main Methods:

    • Purification of proteinase inhibitors from finger millet, sorghum, pearl millet, Italian millet, and barnyard millet.
    • Assays to determine inhibitory activities against various pancreatic enzymes.

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  • Analysis of inhibitor levels during germination and plant growth stages.

    • Main Results:

    • Distinct properties of proteinase inhibitors were identified among different millet types.
    • Inhibitory activity levels fluctuated significantly during finger and barnyard millet germination and growth.
    • Millet proteinase inhibitors demonstrated varying degrees of efficacy against human and animal pancreatic enzymes.

    Conclusions:

    • Millet proteinase inhibitors possess diverse biochemical characteristics.
    • Plant developmental stages influence the expression and activity of these inhibitors.
    • Substrate specificity plays a key role in the inhibitory potential of millet proteinase inhibitors.