Preparation of bio- and immunoactive human prolactin in milligram amounts from amniotic fluid in 60% yield.


Bio- and immunoactive human prolactin (hPRL) was isolated from amniotic fluid. The overall yield is a single passage through the procedure was 60%; 5 liters of amniotic fluid (10 mg hPRL) yielded 3 mg (30%) of a mixture of hPRL isohormones A, B (both minor), C and D (both major), and less than 10% contamination with extraneous protein. A further 3 mg hPRL… (More)


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