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  • Title: [3H-Methyl]-methionine as possible methyl donor for formation of 5'-terminus of in vitro synthesized mRNA of cytoplasmic polyhedrosis virus of silkworm Bombyx mori.
    Author: Wu AZ, Dai RM, Shen XR, Sun YK.
    Journal: Sci Sin; 1981 Dec; 24(12):1737-42. PubMed ID: 7038870.
    Abstract:
    The mRNA of the cytoplasmic polyhedrosis virus of silkworm Bombyx mori could be synthesized in vitro through the action of the virion associated RNA-polymerase in the presence of [3H-methyl]-methionine instead of S-adenosyl-L-methionine. The 3H-mRNA is isolated from the reaction mixture through a column of DEAE-Sephadex A-25 and digested with nuclease p1 and snake venom phosphodiesterase. The results of paper electrophoresis show that the methyl group of methionine is incorporated into the 5'-terminus of CPV mRNA. Even in the presence of S-adenosyl-L-methionine the [3H-methyl]-methionine could still function as a methyl donor for the formation of the 5'-caps of the mRNA of CPV.
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