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  • 1
    ISSN: 1432-0614
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary Streptomyces coelicolor “Müller” DSM3030 excretes a lysozyme comprising both β-1,4-N-acetyl-and β-1,4-N,6-O-diacetyl muramidase activities. The lysozyme is named Cellosyl. Gene libraries have been established using genomic DNA from the wild-type strain, S. coelicolor DSM3030, and from an overproducing mutant, S. coelicolor HP1, which exhibits about a twofold increase in lysozome production. The lysozyme-encoding genes (cel) from both strains were detected by oligodeoxynucleotide hybridization. The nucleotide sequence of the cel genes isolated from both strains was shown to be identical. The different levels of lysozyme production could not be correlated with any mutations at the cel gene locus. The cel gene isolated from the wild-type strain could not be expressed in some other species of Streptomyces. However, self-cloning of the cel gene into S. coelicolor DSM3030 and HP1 resulted in a 2.5-fold increase in lysozyme production.
    Type of Medium: Electronic Resource
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