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Related Experiment Videos

H-Y typing in the ELISA.

M Brunner, C Moreira-Filho, G Wachtel

    Journal of Immunological Methods
    |December 31, 1984
    PubMed
    Summary

    Researchers detected the H-Y antigen in various species, confirming its evolutionary persistence. This finding supports its role in determining vertebrate sex.

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    Area of Science:

    • Immunology
    • Developmental Biology
    • Evolutionary Biology

    Background:

    • The H-Y antigen is a cell surface antigen associated with the male sex in mammals.
    • Its presence and role in sex determination across different vertebrate species remain incompletely understood.

    Purpose of the Study:

    • To investigate the evolutionary persistence of the H-Y antigen.
    • To confirm the presence of the H-Y antigen in diverse vertebrate species.
    • To underscore the presumptive role of the H-Y antigen in primary sex determination.

    Main Methods:

    • Quantitative absorption assays were performed using biotin-conjugated monoclonal H-Y antibody.
    • The antibody was reacted with a plated source of H-Y antigen in an enzyme-linked immunosorbent assay (ELISA).
    • Samples included mouse testis supernatant fluid and cells from male mice, bovines, humans, and female chickens.

    Main Results:

    • The H-Y antigen was successfully detected in mouse testis supernatant fluid.
    • The H-Y antigen was identified in cells from male mice, bovines, and humans.
    • The H-Y antigen was also found in female chickens, indicating cross-species presence.

    Conclusions:

    • The H-Y antigen demonstrates significant evolutionary persistence across diverse vertebrate taxa.
    • The findings support the hypothesis that the H-Y antigen plays a crucial role in the primary determination of vertebrate sex.

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