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Related Experiment Videos

Structural polypeptides of cholera bacteriophage phi 2

K Chaudhuri, M Maiti

    Canadian Journal of Microbiology
    |January 1, 1981
    PubMed
    Summary

    Researchers analyzed cholera bacteriophage phi 2 structural proteins using SDS-PAGE. Eight distinct polypeptides were identified, revealing key components of this bacterial virus.

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    Area of Science:

    • Molecular Biology
    • Virology
    • Biochemistry

    Background:

    • Cholera bacteriophage phi 2 is a virus that infects Vibrio cholerae, the bacterium causing cholera.
    • Understanding the structural components of bacteriophages is crucial for comprehending their replication and host interaction mechanisms.

    Purpose of the Study:

    • To identify and characterize the structural polypeptides of the cholera bacteriophage phi 2.
    • To determine the molecular weights and relative abundance of these viral proteins.

    Main Methods:

    • Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) was employed for polypeptide separation.
    • Analysis involved separating viral proteins based on their molecular weight.

    Main Results:

    • Eight distinct polypeptides were identified in the cholera bacteriophage phi 2.
    • The apparent molecular weights of these polypeptides ranged from 13,500 to 143,000 Da.
    • The relative percentage of total protein for each polypeptide was estimated.

    Conclusions:

    • The study successfully delineated the protein composition of cholera bacteriophage phi 2.
    • This provides a foundational understanding of the phage's structural makeup for future research.

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