摘要：

Hyaluronidase (" spreading factor ") is an enzyme which hydrolyses the sulfuric esters of hyaluronic acid. It has an important function in many biological situations. It occurs, for example, in spermatozoa, where its function is to liquefy the viscous material surrounding the ovum and so permit fertilization. Its presence in snake venoms and insect stings is responsible for the rapid appearance...

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