Structural properties of a soluble bioactive precursor for transforming growth factor-alpha.


The precursor for transforming growth factor-alpha, proTGF-alpha, is synthesized as an integral membrane glycoprotein with the mature TGF-alpha sequence located in the extracellular domain. Retrovirally transformed rat embryo fibroblasts (FeSV-Fre cells) expressing the endogenous proTGF-alpha gene release and accumulate in the medium mature TGF-alpha as… (More)


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