VOPROSY MEDITSINSKOI KHIMII (ISSN 0042-8809)

The use of immunoaffinity chromatography for isolation of carcinoembryonal antigen

   
Shcherban' A.I., Lukashevich L.V., Marchuk S.I., Nezhinets E.A.
PubMed Id: 2629235
Year: 1989  Volume: 35  Issue: 6  Pages: 121-124
A procedure for cancer-embryonal antigen isolation involved extraction of the antigen by chloric acid, affinity chromatography on CNBr-Sepharose 4B containing immobilized antibodies and gel filtration on Sephadex G-200. Contaminating proteins, adsorbed on the immunosorbent were eluted with 0.05 M phosphate buffer, pH 7.4 containing 0.3% sodium cholate and 1 M NaCl, while cancer-embryonal antigen--with 0.1 M glycyl-HCl buffer, pH 2.2. After purification of the preparation on Sephadex G-200 homogenous fraction of the antigen, as shown by means of polyacrylamide gel electrophoresis in presence of SDS and by immunoblotting, was obtained. Yield of the antigen was about 40%.
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Shcherban', A. I., Lukashevich, L. V., Marchuk, S. I., Nezhinets, E. A. (1989). The use of immunoaffinity chromatography for isolation of carcinoembryonal antigen. Voprosy Meditsinskoi Khimii, 35(6), 121-124.
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