目的从双齿围沙蚕消化道中克隆并表达具有纤维蛋白溶解活性的蛋白。

OBJECTIVE To clone and express a new protease with fibrinolytic activity from Perinereis aibuhitensis Grube digestive tract epithelial cells.

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简介人体纤维蛋白溶解系统的生理学背景，对以此为依据建立的纳豆激酶溶栓活性测定方法进行了概括总结。

The physiological background of the human fibrinolytic system is briefly introduced, and, on the basis of that, assay methods for the thrombolysis activity of nattokinase are set up.

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纳豆激酶，纳豆的主要活性成分，是一种强纤维蛋白溶解性酶，且含有一种由275种氨基酸组成的单个多肽链强蛋白结构。

Nattokinase, the main active ingredient of natto, is a potent fibrinolytic enzyme and has a potent protein structure made up of a single polypeptide chain consisting of 275 amine acids.

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