Abstract
A method is presented to separate the mRNAs coding for α and β globins of rabbit reticulocytes. 10S RNA was extracted from the light and heavy polysomes created by incubation of reticulocytes with L-O-methylthreonine, and assayed for mRNA activity in an ascites cell-free extract. Tryptic digests of the in vitro products demonstrated that the heavy polysomes yielded β globin mRNA at least 90% free of α mRNA activity, and that the light polysomes yielded α mRNA at least 70% free of β mRNA activity.
Keywords: L-O-methylthreonine, in vitro protein synthesis, tryptic peptides
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