polyadenylic acid

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pol·y·ad·e·nyl·ic acid

n. Abbr. poly(A)
A polymer of adenosine nucleotides that is often attached to eukaryotic messenger RNA and stabilizes the molecule before transport from the nucleus into the cytoplasm.

pol′y•ad•e•nyl′ic ac′id

(ˈpɒl iˌæd nˈɪl ɪk, ˌpɒl-)

a segment of nucleotides composed of adenylic acid residues, appearing at the tail end of messenger RNA after transcription and inducing stability: added to DNA fragments in certain genetic engineering procedures. Also called poly A.
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References in periodicals archive ?
And it's the double-stranded RNA, in various combinations (poly I poly C, poly A poly U and others), that is the key to the immune system-enhancing effects of these biological response modifiers.
Since then, several such double-stranded RNA biological response modifiers have been introduced, including poly ICLC, poly A poly U and Ampligen.
Results of experiments with poly A poly U by Jean and Fanny LeCour of the Institut Gustav-Roussy in Paris have been more heartening.