Ratio of the amounts of the mRNA poly A+/poly A- fractions in the myocardium and the life span of mRNA poly A+
Iavich, M.P.
Kardiologiia 21(4): 91-94
1981
ISSN/ISBN: 0022-9040 PMID: 7253404 Document Number: 169861
Two mRNA fractions, poly A+ and poly A- were found in the rat heart muscle. They comprise 30 and 70% of the entire mRNA, respectively. The ratio of the mRNA poly A+ to poly A- in the myocardium does not change in physiological aging. According to the kinetics of labelled precursor incorporation into mRNA, the life span of the main mass of mRNA poly A+ in the myocardium is about 4 hours.
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