高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (2): 203.

• 研究论文 • 上一篇    下一篇

一种分离抗凝血酶Ⅲ的高效亲和色谱填料的制备及表征

赵莹歆, 上官棣华, 赵睿, 刘国诠   

  1. 中国科学院化学研究所, 分子科学中心, 北京 100080
  • 收稿日期:2001-02-19 出版日期:2002-02-24 发布日期:2002-02-24
  • 通讯作者: 赵睿(1962年出生),女,副研究员,主要从事生化分析研究.
  • 基金资助:

    国家自然科学基金(批准号:20035010;20075033);中国科学院重大基础研究及物质基地项目资助

Preparation and Characteristics of High Performance Affinity Chromatography Medium Used for the Separation of Antithrombin Ⅲ

ZHAO Ying-Xin, SHANGGUAN Di-Hua, ZHAO Rui, LIU Guo-Quan   

  1. Center for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China
  • Received:2001-02-19 Online:2002-02-24 Published:2002-02-24

摘要: 以聚甲基丙烯酸环氧丙酯微球(PGMA)为基质,利用还原氨化方法将肝素键合在其表面上,得到一种以肝素为配基的高效亲和色谱填料,该填料对抗凝血酶的亲和容量为1.2mg/g,对抗凝血酶和人血清白蛋白的回收率分别为96.9%和94.4%.利用前沿色谱法测定了肝素与抗凝血酶之间的表观解离常数为1.96×10-5mol/L.利用该填料可直接从人血浆中分离出抗凝血酶.

关键词: 高效亲和色谱, 肝素, 抗凝血酶

Abstract: A high performance affinity chromatography medium used for separation of antithrombin Ⅲ was prepared. Monodisperse poly(glycidyl methacrylate) beads(PGMA) were employed as the affinity support. Heparin was linked covalently to amino-PGMA-beads, which was prepared by amination of PG-MA. The resultant affinity media present a minimal non specific interaction with proteins and the protein recovery was 96.9% and 94.4% for antithrombin Ⅲ and human serum albumin, respectively. Its affinity capacity for antithrombin Ⅲ was 12 mg/g beads. The apparent dissociation constant between antithrombin Ⅲ and immobilized heparin was 1.96×10-5 mol/Lwhich was evaluated by front chromatography. The affinity medium was used to separate antithrombin Ⅲ from human plasma.

Key words: High performance affinity chromatography, Heparin, Antithrombin Ⅲ

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