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  • Title: Localization and distribution of actin in mammalian sperm heads.
    Author: Lora-Lamia C, Castellani-Ceresa L, Andreetta F, Cotelli F, Brivio M.
    Journal: J Ultrastruct Mol Struct Res; 1986; 96(1-3):12-21. PubMed ID: 3316422.
    Abstract:
    Actin was identified in boar and mole spermatozoa by utilizing indirect immunofluorescence, immunoelectron microscopy, and SDS-PAGE, followed by blot and screening with an anti-actin monoclonal antibody. Actin was detected in two places in the sperm head: the equatorial segment of the acrosome and the postacrosomal region. The protein was present in a nonfilamentous form and was localized under the plasma membrane. A small amount of actin was also detected in the sperm tail. The function of actin in the sperm head is discussed.
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