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J Biosci ; 1986 June; 10(2): 193-202
Artículo en Inglés | IMSEAR | ID: sea-160625

RESUMEN

Poly A enriched RNA from either liver or oviduct of estradiol-17β treated immature chicks supported [3H]-leucine incorporation into immunoprecipitable riboflavin carrier protein in a dose-dependent manner when translated in the rabbit reticulocyte lysate system. Primary translation product of riboflavin carrier protein had a molecular weight of 38,000 which on incubation with a stripped hepatic microsomal preparation was processed to a product with a size comparable to native riboflavin carrier protein. Poly A enriched RNA from both the liver and the oviduct of estrogen-treated birds stimulated [3H]-leucine incorporation into riboflavin carrier protein and this was 2-3 fold higher during secondary stimulation vis-avis primary stimulation with the steroid. Poly A enriched RNA from the liver of progesteronetreated birds during secondary stimulation did not support riboflavin carrier protein synthesis. In contrast, poly A enriched RNA from the oviduct of the birds treated with progesterone during secondary (but not primary) stimulation did exhibit riboflavin carrier protein-mRNA activity which was comparable to that stimulated by estradiol- 17β.

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