Acrosin - Acrosin

Japanese: アクロシン - あくろしん

… In mammalian sperm, the acrosome process is not formed. The main hydrolase released during the acrosome reaction is a protease called acrosin. In mammalian sperm, hyaluronidase is also one of the main enzymes, but the content varies by species. …

From 【Sperm】

… The acrosome is thought to be a specialized structure of the lysosome, an organelle of normal cells, and contains many hydrolases. The most important is acrosin, a protease specific to the acrosome. Others include acid phosphatases, nonspecific esterases, and hyaluronidases. …

*Some of the terminology that mentions "acrosin" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…哺乳類精子では，先体突起は形成されない。先体反応に伴って放出される加水分解酵素の主要なものは，アクロシンacrosinと呼ばれるタンパク質分解酵素である。哺乳類精子では，ヒアルロニダーゼも主要な酵素の一つにあげられるが，含量には種による違いがある。…