May be a serine protease inhibitor (By similarity). Essential for sperm maturation and fertility. Inhibits sperm acrosome reaction, protecting sperm from premature reaction (By similarity).

97 amino acids

MKRSGCWHQRMLLSLVLLTWTHVTFSALIRSHNFSRWPKPPCKMYYPIDPDYEANCPDVKAYVCATNGLTYKNECFFCIDRWEFGPHIQFVKYGKCE

11.5 kDa

(Note: Representative image - actual molecular weight may vary depending on tag type and expression method)

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