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Modified messenger ribonucleic acid release from isolated hepatic nuclei after inhibition of polyadenylate formation.


ABSTRACT: Treatment of rats with Cordycepin (3'-deoxyadenosine), an inhibitor of nuclear poly(A) synthesis, selectively decreased the energy and cytosol-dependent release of a portion of the mRNA species from the isolated hepatic nuclei in a cell-free system by approximately 40%. An analysis of the differential binding of the transported mRNA containing poly(A) tracts to nitrocellulose filters, and to cellulose or poly(U)-Sepharose columns suggested that the poly(A) tracts in the mRNA transported from the isolated hepatic nuclei of Cordycepin-treated rats, are decreased in size. This size decrease was confirmed through an analysis of the average size of the poly(A) tracts, released from the messengers by ribonuclease activity, on sucrose density gradients.

SUBMITTER: Schumm DE 

PROVIDER: S-EPMC1166266 | biostudies-other | 1974 Apr

REPOSITORIES: biostudies-other

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