›› 2013, Vol. ›› Issue (7): 124-126.

• 生理生化 • 上一篇    下一篇

两种纯化兔抗酸性红73免疫球蛋白G方法的比较研究

常向彩1, 杨晓农1, 朱子凤2, 陈瑞1, 刘凌颖1   

  1. 1. 西南民族大学生命科学与技术学院, 四川成都 610041;
    2. 西南民族大学校医院, 四川成都 610041
  • 收稿日期:2012-12-07 出版日期:2013-07-20 发布日期:2013-07-24
  • 通讯作者: 杨晓农 E-mail:yangxn058@yahoo.com.cn
  • 作者简介:常向彩(1987-),男,河北人,硕士生,研究方向:兽医免疫学。
  • 基金资助:
    中央高校基本科研业务费科研平台建设项目(11NPT03);西南民族大学研究生学位点建设项目(2011XWD-S0906)。

Comparison of Two Methods for Purifying the Rabbit Antibody of Acid Red 73 IgG

CHANG Xiang-cai1, YANG Xiao-nong1, ZHU Zi-feng2, CHEN Rui1, LIU Ling-ying1   

  1. 1. College of Life Science and Technology, Southwest University for Nationalities, Chengdu 610041, China;
    2. The Hospital of Southwest University for Nationalities, Chengdu 610041, China
  • Received:2012-12-07 Online:2013-07-20 Published:2013-07-24

摘要: 分别采用饱和硫酸铵法和辛酸—硫酸铵法纯化兔抗酸性红73(acid red 73,AR73)免疫球蛋白G(IgG)。通过二喹啉甲酸(BCA)法、十二烷基硫酸钠—聚丙烯酰胺凝胶电泳(SDS-PAGE)试验、间接ELISA法分别测定IgG的浓度、纯度及效价。结果显示,饱和硫酸铵法所提IgG浓度为36.44 mg/mL,最高效价达1.6×105;辛酸—硫酸铵法所提IgG浓度为15.79 mg/mL,最高效价达3.2×105。提示,辛酸—硫酸铵法IgG纯度优于饱和硫酸铵法。

关键词: 酸性红73; 酸性大红GR; 饱和硫酸铵法; 辛酸—硫酸铵法

Abstract: To compare the effects of saturated ammonium sulfate method and caprylic acid-ammonium sulfate method for purifying the rabbit anti-AR73 IgG. The IgG were tested in protein content,relative molecular weight, the antibody titer by BCA method,sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and indirect enzyme linked immunosorbent assay (ELISA).The results indicated that the protein content of IgG by saturated ammonium sulfate method was 36.44 mg/mL and the antibody titer was 1.6×105, the protein content of IgG by caprylic acid-ammonium sulfate method was 15.79 mg/mL, and the antibody titer was 3.2×105. The purity of purified antibody by caprylic acid-ammonium sulfate method was higher than that by saturated ammonium sulfate method.

Key words: acid red 73; acid red GR; saturated ammonium sulfate; caprylic acid-ammonium sulfate

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