Purification of Subunits from Human Chorionic Gonadotropin and Radioimmunoassay

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منابع مشابه

[Purification of subunits from human chorionic gonadotropin and radioimmunoassay].

A crude hCG with an activity of about 3,000 IU per mg was purifed to 10,000--15,000 IU per mg of dry weight using Amberlite CG-50 chromatography combined with DEAE-Sephadex A-50 and Sephadex G-75. The alpha and beta subunits of hCG were prepared by urea-treatment of the hormone and isolated by DEAE-Sephadex A-50 chromatography. Further purification of the subunits was achieved by gel filtration...

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Immunoassay of human chorionic gonadotropin, its free subunits, and metabolites.

Multiple hCG-related molecules are present in pregnancy serum and urine samples. These include non-nicked hCG (the hormone), nicked hCG, hyper- and hypoglycosylated hCG, hCG missing the C-terminal extension, free alpha-subunit, large free alpha-subunit, free beta-subunit, nicked free beta-subunit, and beta-core fragment. Over 100 immunoassays are sold for quantifying hCG-related molecules in se...

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Human Chorionic Gonadotropin

A highly active preparation of human chorionic gonadotropin has been obtained by simple methods of column chromatography on diethylaminoethyl Sephadex and Sephadex G-100. The preparation appeared homogeneous by disc and immunoelectrophoresis, ultracentrifugation, and end group analysis. It assayed at 12,000 i.u. per mg by the rat prostrate gland and accessory sex organ method. The ~20,~ value w...

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Synthesis and secretion of human chorionic gonadotropin subunits by cultured human malignant cells.

The synthesis and secretion of human chorionic gonadotropin (hCG) subunits have been studied by pulse-chase techniques in JAR choriocarcinoma cells, which produce both the alpha and beta subunits of hCG "eutopically," that is, as part of their expected repertoire of gene products, and in three cell lines that produce either alpha or beta subunit "ectopically." JAR cells contain two intracellula...

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Production and Purification of Equine Chorionic Gonadotropin Hormone Using Polyclonal Antibody

  Background: Equine chorionic gonadotropin (eCG) is commonly used in association with a progestagen treatment to synchronize estrus of goats and ewes during breeding and non-breeding seasons. Classical purification of the eCG from serum includes pH fractionation with metaphosphoric acid two ethanol precipitation steps as...

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ژورنال

عنوان ژورنال: Folia Endocrinologica Japonica

سال: 1976

ISSN: 0029-0661

DOI: 10.1507/endocrine1927.52.2_105