Transport and metabolism of 5'-nucleotidase in a rat hepatoma cell line.


The biosynthesis of the ectoenzyme 5'-nucleotidase in the rat hepatoma cell line H4S has been studied by pulse-labeling with [35S]methionine and subsequent immunoprecipitation of the cell lysate. 5'-Nucleotidase is a membrane glycoprotein with an apparent molecular mass on SDS-gels of 72 kDa. The enzyme is initially synthesized as a 68-kDa precursor which… (More)


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