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Related Experiment Videos

Multiple enzyme purifications from muscle extracts by using affinity-elution-chromatographic procedures

R K Scopes

    The Biochemical Journal
    |February 1, 1977
    PubMed
    Summary

    Researchers developed efficient methods to purify muscle enzymes using affinity elution chromatography. These techniques yield highly purified enzymes with specific activities matching the best reported values.

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    Area of Science:

    • Biochemistry
    • Enzymology
    • Protein Purification

    Background:

    • Muscle extracts contain numerous enzymes that are challenging to isolate.
    • Traditional purification methods can be time-consuming and may not yield high purity.

    Purpose of the Study:

    • To describe procedures for purifying multiple enzymes from muscle extracts.
    • To present schemes for isolating enzymes using affinity elution chromatography.

    Main Methods:

    • Enzyme purification from ammonium sulfate ((NH4)2SO4) fractions of muscle extracts.
    • Utilizing ion-exchange chromatography with affinity elution and gel filtration.
    • Employing gradient affinity elution for separating enzyme isoforms.

    Main Results:

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    • Successful purification of 4-6 enzymes per fraction from muscle extracts.
    • Detailed schemes for purifying 12 enzymes from rabbit muscle and 8 from chicken muscle.
    • Achieved specific activities comparable to the highest literature values.
    • Separated two forms of phosphoglycerate kinase based on isoelectric point (pI) using gradient affinity elution.

    Conclusions:

    • Developed robust and efficient affinity elution chromatographic techniques for enzyme purification.
    • The presented methods are applicable to various muscle sources and enzyme types.
    • The purified enzymes exhibit high specific activity, indicating successful isolation.