An interferon-induced phosphodiesterase degrading (2'-5') oligoisoadenylate and the C-C-A terminus of tRNA - PubMed (original) (raw)

An interferon-induced phosphodiesterase degrading (2'-5') oligoisoadenylate and the C-C-A terminus of tRNA

A Schmidt et al. Proc Natl Acad Sci U S A. 1979 Oct.

Abstract

A phosphodiesterase characterized by a generally higher activity on 2'-5' than on 3'-5' phosphodiester bonds was isolated from mouse L cells treated with interferon. A similar enzyme was purified from mouse reticulocytes. The phosphodiesterase 2'-PDi splits the 2'-phosphate bond of pppA2'p5'A2'p5'A, the oligonucleotide activator of ribonuclease F. The level of phosphodiesterase 2'-PDi is increased by interferon treatment of L cells. The phosphodiesterase was also shown to degrade the C-C-A terminus of tRNA and to reduce the amino acid acceptance of tRNA in cell-free extracts, thereby causing a tRNA-reversible inhibition of mRNA translation.

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References

    1. J Biol Chem. 1963 Jun;238:2102-12 - PubMed
    1. Biochim Biophys Acta. 1960 Sep 9;43:79-89 - PubMed
    1. Eur J Biochem. 1977 Jun 15;76(2):541-51 - PubMed
    1. J Mol Biol. 1977 Feb 25;110(2):191-203 - PubMed
    1. Proc Natl Acad Sci U S A. 1979 Jul;76(7):3208-12 - PubMed

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