中国寄生虫学与寄生虫病杂志 ›› 1993, Vol. 11 ›› Issue (3): 204-206.

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粉尘螨变应原的提纯及其物理化学特征鉴定

钟建敏,温廷桓   

  1. 上海医科大学医学螨类研究室
  • 收稿日期:2017-01-06 修回日期:2017-01-06 出版日期:1993-08-31 发布日期:2017-01-06

PURIFICATION AND PHYSICOCHEMICAL CHARACTERIZATION OF ALLERGEN I from Dermatophagoides farinae

  • Received:2017-01-06 Revised:2017-01-06 Online:1993-08-31 Published:2017-01-06

摘要: 本文制备了粉尘螨(Dermatophagoides farinae)代谢培养基浸液,采用抗 Der f Ⅰ单克隆抗体亲和层析法在国内首次分离纯化粉尘螨Ⅰ类变应原(Der f Ⅰ),并进一步分析 Der fⅠ变应原的物理化学特性。SDS-PAGE 测得 Der f Ⅰ分子量为 24 kDa,同时在 SDS-PAGE 上只显示 1条蛋白质条带。等电聚焦电泳结果表明该变应原pⅠ为4.8-7.5,在此范围内形成6条蛋白质染色条带,这表明 Der f Ⅰ变应原的不均一性,其组成非常复杂。

关键词: 粉尘螨, 变应原, 单克隆亲和层析, 物理化学特性

Abstract: Dermatophagoid.es farinae allergen Ⅰ (Der f Ⅰ ) has been extracted and purified from spent culture medium of Dermatophagoid.es farinae by affinity chromatography coupled with anti-Der f Ⅰ McAb for the first time in China. Furthermore,its physicochemical properties were analysed. By SDS-PAGE,.Der f Ⅰ was estimated to have a molecular weight of 24 kDa and appeared as only one protein band. By isoelectric focusing ,it was revealed to have pIs of 4. 8 - 7. 5 with six protein bands,suggesting that Der f Ⅰ is heterogeneous with complicated composition.