Purification and properties of bullfrog prolactin

K. Yamamoto, S. Kikuyama

    Research output: Contribution to journalArticlepeer-review

    55 Citations (Scopus)


    Prolactin was purified from bullfrog adenohypophyses by extraction of acetone-dried powder with acid acetone and chromatography on DEAE-cellulose and Sephadex G100. The bullfrog prolactin had a molecular weight of 23,000 as determined by SDS gel electrophoresis. The isoelectric point was 5.76 when determined by electrofocusing. The amino acid composition of the purified prolactin closely resembles that of mammalian prolactin. The prolactin was found to be 3.6 times as potent as bovine prolactin in promoting collagen synthesis in the tadpole tail fin.

    Original languageEnglish
    Pages (from-to)59-64
    Number of pages6
    JournalEndocrinologia Japonica
    Issue number1
    Publication statusPublished - 1981

    ASJC Scopus subject areas

    • Endocrinology


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