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Biogenesis of plasmalemmal glycoproteins. Intracellular site of synthesis of mouse liver plasmalemmal 5'-nucleotidase as determined by the sub-cellular location of messenger RNA coding for 5'-nucleotidase

Bergeron, J. J., Berridge, M. V. and Evans, William Howard 1975. Biogenesis of plasmalemmal glycoproteins. Intracellular site of synthesis of mouse liver plasmalemmal 5'-nucleotidase as determined by the sub-cellular location of messenger RNA coding for 5'-nucleotidase. Acta Biochimica et Biophysica 407 (3) , pp. 325-337. 10.1016/0005-2787(75)90100-8

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Abstract

1. Free and membrane-bound mouse liver polyribosomes were separated by prolonged density-gradient centrifugation of the post-mitochondrial supernatant. RNA was extracted from free and membrane-bound polyribosomes and mRNA purified by oligo(dT)-cellulose column chromatography. 2. Antisera against purified mouse liver plasma membrane 5'-nucleotidase and moust albumin were prepared and characterized. 3. Microinjection of equivalent amounts of mRNA from free and membrane-bound liver polyribosomes into Xenopus laevis oocytes indicated by immuno precipitation and sodium dodecylsulphate gel electrophoresis a higher proportion of mRNA coding for 5'-nucleotidase and serum albumin in membrane-bound polyribosomes than free polyribosomes. 4. Although small, significant amounts of serum albumin and 5'-nucleotidase were also coded for by mRNA purified from free polyribosomes. The results suggest that in vivo, mRNA in mouse liver membrane-bound polyribosomes codes for the synthesis of 17 times more 5'-nucleotidase than does the mRNA in free polyribosomes.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Subjects: R Medicine > R Medicine (General)
R Medicine > RZ Other systems of medicine
Publisher: Elsevier
ISSN: 0006-3002
Last Modified: 04 Jun 2017 06:53
URI: http://orca.cf.ac.uk/id/eprint/65994

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