【2022年1月締切】CiNii ArticlesへのCiNii Researchへの統合に伴う機関認証の移行確認について

【1/6更新】2022年4月1日からのCiNii ArticlesのCiNii Researchへの統合について

Characterization of collagenase found in the nonpathogenic bacterium Lysinibacillus sphaericus VN3

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High collagenolytic activity has been detected in pathogenic bacteria. Collagenase plays an essential role in the invasion step in animals and humans. In this study, we characterized collagenase found in the nonpathogenic bacterium Lysinibacillus sphaericus VN3, which was isolated from soil in Vietnam. The collagenase activity of the purified enzyme was strongly inhibited by Cu2+, but it was significantly increased by Zn2+. The purified enzyme with a molecular mass of approximately 110 kDa exhibited collagenolytic, gelatinolytic, and caseinolytic activity. The kinetic studies showed that this enzyme had greater hydrolyzing activity toward collagen and gelatin compared with casein. Based on the ratio Vmax/Km, collagen is likely to be the best substrate among three proteins. We found that this collagenase could digest small pieces of bovine skin and tendon into a collagen solution. Interestingly, at pH 6.0–8.0, the soluble collagen could form a collagen membrane, which is useful as a wound-healing biomaterial.

identifier:1347-6947

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詳細情報

  • CRID
    1050570884493536640
  • ISSN
    1347-6947
  • Web Site
    http://hdl.handle.net/10061/14443
  • 本文言語コード
    en
  • 資料種別
    journal article
  • データソース種別
    • IRDB
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