Abstract

A simple method for the large-scale isolation of undegraded polysomes and active mRNA from immature hen erythrocytes is described. The method is based on the removal of white cells from heparinized blood by adsorption on sulfoethyl- or sulfopropyl-Sephadex. Red cells thus purified can be stored frozen and lysed in the presence of nonionic detergents. The yield of polysomes is about twice that obtained by the usual mild lysis procedures designed to prevent lysis of lysosomes from contaminating white cells.

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