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[Studies on staphylococcal enterotoxin B. III. Purification with absorbents].

C P Chen, N L Wang, F H Tai

    Zhonghua Minguo Wei Sheng Wu Xue Za Zhi = Chinese Journal of Microbiology
    |June 1, 1979
    PubMed
    Summary

    Staphylococcal enterotoxin B (SEB) is a stable toxin, resistant to digestion and extreme pH levels. This stability allows for effective purification using enzymatic digestion and chromatographic techniques.

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    Area of Science:

    • Microbiology
    • Immunology
    • Biochemistry

    Context:

    • Staphylococcal enterotoxin B (SEB) possesses significant biological and immunological activities.
    • Understanding SEB's stability is crucial for its handling and purification in research settings.

    Purpose:

    • To investigate the stability of Staphylococcal enterotoxin B (SEB) under various conditions.
    • To establish a purification protocol for SEB leveraging its inherent stability.

    Summary:

    • SEB demonstrates remarkable stability across a wide pH range (2.0–11.0).
    • The toxin is resistant to proteolytic digestion by trypsin and pepsin for up to 4 hours.
    • A purification strategy involving trypsin digestion, adsorption onto kaolin and Kieselgel, and subsequent elution with pH buffers was developed.

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  • Further purification was achieved using CM-Sephadex column chromatography.

    • Impact:

    • The findings facilitate the development of robust methods for SEB purification.
    • This work supports further research into the mechanisms and applications of SEB.