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  • Title: [Isolation of preparative amounts of polyribosomes from normal rabbit and guinea pig spleen].
    Author: Nikolaeva AI.
    Journal: Biokhimiia; 1976 Oct; 41(10):1753-9. PubMed ID: 1030631.
    Abstract:
    Preparative amounts of polyribosomes were isolated from normal rabbit and guinea pig spleen; up to 40 optical units of the polyribosome preparation could be obtained by centrifugation in a Spinco L-2B centrifuge with SW-27 rotor. The amount of polyribosomes isolated from spleens of immune animals was 2-3 higher than that isolated from normal animal spleens. Concentration of polyribosomal preparations by lyophylization and the storage of dried preparations do not alter the sedimentation properties of the polyribosomes. The distribution pattern of normal rabbit spleen polyribosomes in a linear sucrose gradient and the sedimentation constants of the polyribosome peaks are in good agreement with data reported by some other authors for plasmocytome polyribosomes. Using electrophoresis in agarose-polyacrylamide gel the radioactive proteins synthesized in the cell culture of normal rabbit spleen it was shown that in normal spleen the average amount of globulins makes up to 35% of total protein synthesis, as reported by some authors.
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