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  • Title: Elongation factor 2 from Artemia salina embryos and its affinity for ribosomes.
    Author: Zamboni M, Brigotti M, Montanaro L, Sperti S.
    Journal: Eur J Biochem; 1991 Aug 15; 200(1):13-8. PubMed ID: 1908776.
    Abstract:
    Crude extracts from Artemia salina undeveloped embryos do not contain detectable elongation-factor-2 (EF2) kinase and endogenous ADP-ribosylating activities. Accordingly, EF2 purified from this source is an enzyme relatively free from phosphorylated and ADP-ribosylated forms. Endogenous ADP-ribosyltransferase activity appears only after purification of EF2. The affinities of EF2 and of ADP-ribosyl-EF2 for ribosomes from A. salina undeveloped embryos have been calculated by measuring the ability of the factors to inhibit the N-glycosidase activity of ricin on ribosomes.
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