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  • Title: Mechanism of ribosome RNA apurinic site specific lyase.
    Author: Sawasaki T, Morishita R, Ozawa A, Ogasawara T, Madin K, Endo Y.
    Journal: Nucleic Acids Symp Ser; 1999; (42):257-8. PubMed ID: 10780477.
    Abstract:
    A new enzyme, which we named ribosome RNA apurinic site specific lyase (RALyase), has been characterized. The enzyme specifically cleaves a phosphodiester bond at the apurinic site in the sarcin/ricin domain of 28S rRNA in ribosomes. The cut ends of wheat 28S rRNA were determined as 5'---GUACG-alpha-hydroxy-alpha, beta-unsaturated aldehyde and pGAGGA---3' for the 3' fragment, demonstrating that the enzyme catalyzes the beta-elimination reaction.
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