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  • Title: Inhibitory effect of cyclic adenosine 2',3'-monophosphate on leucine incorporation by L5178Y cells.
    Author: Fuhr JE, Stidham JD.
    Journal: J Cell Physiol; 1980 Apr; 103(1):71-5. PubMed ID: 6159364.
    Abstract:
    The specificity of the reported stimulation of protein synthesis affected by dibutyryl adenosine cyclic 3',5'-monophosphate in L5178Y cells was tested by assaying the effect of adenosine cyclic 2',3'-monophosphate. Protein synthesis was assayed as total acid precipitable 3H-leucine. Leucine incorporation was inhibited by adenosine cyclic 2',3'-monophosphate. Alone, and in combination with actinomycin, 2',3'-cAMP inhibited leucine incorporation more rapidly and to a greater degree than did actinomycin alone. Since a similar potentiating effect was not observed with cordycepin, the hypothesis has been suggested that adenosine cyclic 2',3'-monophosphate inhibits protein synthesis by interfering with some post transcriptional event, perhaps modification of existing RNA. The results further suggest that 2,3 cyclic AMP may be antagonistic of the effects of 3,5 cyclic AMP, and as such may be useful as an inhibitor of that nucleotide's action.
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