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EMBO J. 1985 Feb;4(2):431-6.

Analogue inhibitor of 2-5A action: effect on the interferon-mediated inhibition of encephalomyocarditis virus replication.


Chemically synthesised CH3Sp(A2'p)2A2'pp3'OCH3 has been used to assess the importance of the ppp(A2'p)nA (n greater than or equal to 2: 2-5A) system in the antiviral action of interferon against encephalomyocarditis virus (EMC). It inhibits activation of the 2-5A-dependent RNase by 2-5A in intact mouse L929 cells and cell-free systems. In interferon-treated, EMC-infected L929 cells it inhibits 2-5A-mediated rRNA cleavage and partially restores EMC RNA synthesis and virus yield. Activation of the 2-5A-dependent RNase must, therefore, play some part in interferon action against the growth of EMC virus in such cells.

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