Processing of the sperm protein Sp17 during the acrosome reaction and characterization as a calmodulin binding protein.

Abstract

In this study we have demonstrated that the native rabbit sperm protein, Sp17, is a 22- to 24-kDa triplet of proteins in washed ejaculated rabbit spermatozoa and is unaffected by capacitation. However, during the acrosome reaction, Sp17 is processed from a 22- to 24-kDa triplet of proteins to a triplet of proteins at 17-19 kDa by the removal of amino acids… (More)

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