When human chorionic gonadotropin (hCG) was subjected to sodium dodecyl sulfate-polyacrylamide gel electrophoresis under reducing conditions with dithiothreitol (DTT), a smaller weight material (CTP'), in addition to the beta-subunit, could be detected by Western blot analysis using antiserum for
We have studied the binding of human chorionic gonadotropin (hCG) in sera and urine of normal pregnant women and patients with trophoblastic diseases to the lectin from peanut (Arachis hypogaea, PNA). As the basic experiments, purified standard hCG and its alpha and beta subunits were examined for
Two specific and sensitive assays have been developed for the measurement of as-hCG in this study. These assay systems are immunoradiometric assays which utilize peanut lectin, Arachis hypogaea (PNA) or caster bean lectin, Ricin communis agglutinin (RCA-I), to selectively extract as-hCG and then
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