Nucleic Acids Research, 1977, Vol. 4, No. 12 4411-4424
© 1977
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Isolation and partial characterization of poly (A)-containing 7.5S messenger RNA from rat liver mitochondria
Laboratory of Biochemical Genetics, Institute of Experimental Medicine 197022 Leningrad, USSR
Received November 3, 1977. Poly(A)-containing low molecular weight (7.5S) messenger RNA was isolated in a highly purified form from both polyribosomes and post-polysomal. supernatant of rat liver mitochondria. Both mRRA's contain rather short poly(A) tracts (4070 mononucleotides) according to a profile of their elution from poly(U)-Sepharose column with a gradient of formamide concentration. Both mRNA's when added to a preincubated. mitochondrial lysate programmed. the synthesis of a hydrophobic polypeptide of a molecular weight about 9000 daltona which was soluble in the neutral chloroform-methanol mixture.
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