›› 2011, Vol. 38 ›› Issue (1): 42-46.

• 生理生化 • 上一篇    下一篇

甘露糖结合凝集素相关的丝氨酸蛋白酶1研究进展

张海燕1,2,王长法2,仲跻峰2,杨桂文1,安利国1   

  1. (1.山东师范大学生命科学学院,山东济南 250014; 2.山东省农业科学院奶牛研究中心,山东济南 250100)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-01-01 发布日期:2011-01-01
  • 通讯作者: 安利国

Development of Mannose-binding Lectin-associated Serine Protease 1

ZHANG Hai-yan1,2,WANG Chang-fa2,ZHONG Ji-feng2,YANG Gui-wen1,AN Li-guo1   

  1. (1.College of Life science,Shandong Normal University,Jinan 250014,China;2.Dairy Cattle Research Center,Shandong Academy of Agricultural Sciences,Jinan 250100, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-01-01 Published:2011-01-01
  • Contact: AN Li-guo

摘要: 甘露糖结合凝集素途径是补体激活的一个重要途径,在无特异性免疫应答的生物体内或在机体发生免疫应答之前,凝集素补体途径可发挥主要的防御作用。甘露糖结合凝集素相关的丝氨酸蛋白酶(mannose-binding lectin-associated serine protease,MASP)是凝集素途径的中心蛋白酶分子。甘露糖结合凝集素(mannose-binding lectin,MBL)或纤维胶凝蛋白(ficolin)分子通过其胶原样区(collagen-like region,CLR)与MBL相关丝氨酸蛋白酶MASP-1或MASP-2结合形成复合物,在其C端糖识别域(carbohydrate recognition domain,CRD)识别、结合病原微生物的糖结构后,可活化MASPs酶原,从而激活补体凝集素途径而发挥天然抗感染免疫效应。

关键词: 补体; MASP-1; 结构; 功能

Abstract: The mannose-binding lectin pathway is an important pathway of complement activation. In the absence of specific immune responses in vivo or before immune response occurs in body the lectin complement pathway may play a major role in the defense. Mannose-binding lectin-associated serine protease-1 (MASP-1) is an central protease of the complement lectin pathway.Mannose-binding Lectin (MBL) or ficolin can form compound with Mannose-binding lectin-associated serine protease (MASPs) through its CLR.After its CRD domain recognize and binding to sugars presented on pathogens, MBL or ficolin can activity the zymogens of MASPs,then activate the complement cascade via lectin pathway to play the function of anti-infection by innate immunity.

Key words: complement; MBL-associated serine protease-1; structure; function

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