Purification and properties of celluases from an alkalophilic Streptomyces strain.

DOI DOI DOI PubMed 1 Citations Open Access
  • NAKAI Ryozo
    Department of Agricultural Chemistry, Faculty of Agriculture, The University of Tokyo
  • HORINOUCHI Sueharu
    Department of Agricultural Chemistry, Faculty of Agriculture, The University of Tokyo
  • UOZUMI Takeshi
    Department of Agricultural Chemistry, Faculty of Agriculture, The University of Tokyo
  • BEPPU Teruhiko
    Department of Agricultural Chemistry, Faculty of Agriculture, The University of Tokyo

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  • Purification and biochemical characterization of streptothricin acetyltransferase coded by the cloned streptothricin-resistance gene of Streptomyces lavendulae.
  • Purification and Properties of Cellulases from an Alkalophilic<i>Streptomyces</i>Strain

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An alkalophilic Streptomyces strain, KSM-9, producing extracellular cellulases was isolated from soil. Three kinds of cellulases that preferentially hydrolyzed carboxymethylcellulose (CMC) were purified from the strain and designated as CMCase I, II and III. The optimum pH of CMCase I (Mr, 32, 000) is 8.5 while those of CMCase II (Mr, 32, 500) and III (Mr, 92, 000) are at around pH 6.0. CMCase I hydrolyzed CMC in a more random fashion than the other two enzymes.

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