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  • Title: Isolation of a major cell surface glycoprotein from fibroblasts.
    Author: Yamada KM, Weston JA.
    Journal: Proc Natl Acad Sci U S A; 1974 Sep; 71(9):3492-6. PubMed ID: 4530317.
    Abstract:
    A cell surface component has been isolated in partially purified form from cultured chick embryo and chick heart fibroblasts. This glycoprotein is similar to a protein recently reported to be present at the surface of normal cells, and missing after neoplastic transformation. It is a major cell surface glycoprotein that is synthesized by cultured fibroblasts, but is not collagen. It is shown to be markedly trypsin-sensitive, and its recovery from the cell surface is dependent on cell density. It is excluded from Sephadex G-200, but is not rapidly sedimented by ultracentrifugation, and has an apparent molecular weight of 220,000. The isolation of this cell surface glycoprotein may now provide a means of determining its function.
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