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  • Title: Characterization and properties of an LL-oligopeptidase from sporulating cells of Bacillus sphaericus.
    Author: Vacheron MJ, Guinand M, Michel G.
    Journal: J Bacteriol; 1981 Feb; 145(2):675-80. PubMed ID: 7007343.
    Abstract:
    An LL-oligopeptidase was characterized in the cell cytoplasm of sporulating Bacillus sphaericus 9602. Its activity showed a threefold increase throughout sporulation. The enzyme has lytic activity on various LL-dipeptides, especially on dipeptides with N-terminal L-alanine. Lytic activity was also found on some tripeptides and larger peptides which contain the sequence L-Ala-L-Ala. The role of this oligopeptidase in relation to sporulation may be to supply the cell with L-alanine for the biosynthesis of the peptide chains of the spore cortex.
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