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  • Title: Group II intron self-splicing. Alternative reaction conditions yield novel products.
    Author: Jarrell KA, Peebles CL, Dietrich RC, Romiti SL, Perlman PS.
    Journal: J Biol Chem; 1988 Mar 05; 263(7):3432-9. PubMed ID: 2830285.
    Abstract:
    Reaction parameters were modified to enhance the in vitro reaction rate and to reveal partial and novel reactions of the group II intron 5g of the mitochondrial gene from Saccharomyces cerevisiae encoding cytochrome c oxidase subunit I. One alteration yields separate 5'- and 3'-exons plus linear excised intron as the main products. A linear reaction intermediate, containing intron and 3'-exon, and products resulting from cleavages at two unexpected sites were identified. Spliced exon "reopening," a novel reaction between excised intron and spliced exons, appears responsible for separate 5'- and 3'-exon products.
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