中文摘要：

酚氧化酶（Phenoloxidase，PO）又称为酪氨酸酶（tyrosinase，EC1．14．18．1），是一种含铜的酶，能够催化单酚羟化成二酚（如多巴），并把二酚氧化成醌；醌在非酶促条件下形成最终的反应产物黑色素。PO在脊椎动物和无脊椎动物中都广泛存在，而且被认为是一种参与免疫的重要因子。本文就酚氧化酶及其酶原的免疫学特性、细胞定位及其功能研究进展进行综述。

英文摘要：

Phenoloxidase （PO） is also called tyrosinase （EC1.14,18.1）. It is an enzyme containing copper and exists widely in the vertebrates and invertebrates and is considered as an important factor participating in the immune responses. It catalyzes the monohydric phenol to hydroxylate into diphenol （such as dopa） which is oxidized into quinone which is formed into the final reaction product melanin. This paper reviewed the immunological character, cellular localization and fimction and research advances of PO.