Abstract:

Laccase-type phenoloxidase (PO) is an important component of innate defense system in some marine invertebrates. Laccase-type POs of marine invertebrates differ greatly from each other in evolutionary status,  structural characteristics, enzymatic characteristics, immune responsive characteristics, etc., suggesting that there might be differences in the immune and physiological functions of these enzymes. This paper summarized the laccase-type POs of marine invertebrate from the following aspects: discovery method, isozyme composition, molecular size, evolutionary status, structural characteristics, enzymatic characteristics and immune-responsive characteristics, etc., wishing to accumulate data for studying non-specific immunity of marine invertebrate.

Key words: marine invertebrate, laccase-type phenoloxidase, evolutionary status, structural characteristics, enzymatic characteristics, immune-responsive characteristics

摘要：

漆酶型酚氧化酶（PO）是一些海洋无脊椎动物非特异性免疫系统的重要组成因子。不同海洋无脊椎动物中的漆酶型PO在进化地位、结构特征、酶学特性和免疫应答特性等方面差异明显，表明不同漆酶型PO在免疫和生理功能上可能存在差异。从发现方法、同工酶组成、分子大小、进化地位、结构特征、酶学特性和免疫应答特性等几方面对海洋无脊椎动物漆酶型PO进行了综述，以期为海洋无脊椎动物非特异性免疫研究积累资料。

关键词: 海洋无脊椎动物；漆酶型酚氧化酶；进化地位；结构特征；酶学特性；免疫应答特性