mRNP proteins,initiation factors and phosphorylation |
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Authors: | J. M. Egly R. Elkaim M. Pierre |
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Affiliation: | (1) Institut de chimie biologique, I.N.S.E.R.M. U. 184, Université Louis Pasteur, 11 rue Humann, 67085 Strasbourg Cedes, France;(2) Institut de recherches scientifique sur le cancer, B.P. 8, 94800 Villejuif, France |
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Abstract: | Information has been collected to stimulate interest regarding the nature and the possible role of mRNP protein phosphorylation in a cytoplasmic control mechanism for protein synthesis. It does not imply a direct relationship between mRNP protein and initiation factors. These proteins have some properties in common (e.g. molecular weight, phosphorylation, protein kinase, mRNA binding activity). We emphasize that some free mRNP may be translatable after modification of their protein by interference factors belonging to other cellular compartments. Thus, some mRNP proteins might possess initiation factor or protein synthetic activity if we accept Spirin's theory, i.e., Eukaryotic messenger RNA and informosomes omnia mea mecum porto |
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