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A simplified technique for the isolation of the fourth complement component.

M Steinbuch, V Kichenin, L Péjaudier

    Preparative Biochemistry
    |January 1, 1983
    PubMed
    Summary
    This summary is machine-generated.

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    Researchers developed a new method to isolate C4 protein using ethanol precipitation and DEAE-Cellulose adsorption. This technique efficiently purifies C4 from prothrombin complex preparations, yielding 40% recovery.

    Area of Science:

    • Biochemistry
    • Protein purification

    Background:

    • Prothrombin complex (P.C.) preparations are a source of C4.
    • Existing methods for C4 isolation require optimization.

    Purpose of the Study:

    • To develop an efficient technique for isolating C4.
    • To improve C4 purification from P.C. preparations.

    Main Methods:

    • Batch adsorption of P.C. onto DEAE-Sephadex.
    • Ethanol precipitation of the P.C. analogue.
    • Batch adsorption of impurities on DEAE-Cellulose.

    Main Results:

    • The developed technique yields unaltered C4.
    • The process takes 2 days.
    • A 40% yield of C4 is achieved from cryoconcentrate supernatant.

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    Conclusions:

    • The new method provides an efficient way to isolate C4.
    • This technique enhances C4 purification from P.C. preparations.