Characterization of an Anti-Thioredoxin Monoclonal Antibody |
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Authors: | Wei Zhang Wang Zhang Yanchun Tang Jing Zhang Jian-Ning Liu |
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Affiliation: | (1) Institute of Molecular Medicine, Nanjing University, Nanjing, 210093, China |
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Abstract: | An anti-E. coli thioredoxin monoclonal antibody, IMM-3C6, which showed high specificity to thioredoxin as assessed by indirect ELISA, was generated using hybridoma technology. The affinity constant of IMM-3C6 to thioredoxin was 0.40×109 m−1 and its sensitivity to thioredoxin fusion protein in dot blotting was 50 ng. In sandwich ELISA, it detected thioredoxin fusion protein between 16 and 150 ng/ml. By using IMM-3C6 as the ligand, thioredoxin fusion protein was successfully purified by affinity chromatography. IMM-3C6 was confirmed to be a useful tool for immunoassay and purification of thioredoxin fusion proteins. These authors contributed equally to the work. Received 21 September 2005; Revisions requested 7 October 2005; Revisions received 10 November 2005; Accepted 11 November 2005 |
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Keywords: | affinity chromatography monoclonal antibody thioredoxin western blotting |
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