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Physiological role of extracellular proteases and calcium ions

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晓木虫»成果与文献分享»Physiological role of extracellular proteases and calcium ions
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Physiological role of extracellular proteases and calcium ions

 楼主| 虫子晓木虫官方认证 发表于 2021-1-6 16:26  
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Physiological role of extracellular proteases and calcium ions in differentiation of and antibiotic production by Streptomyces albogriseolus 444
Abstract
The extracellular proteolytic activity of Streptomyces albogriseolus 444 was investigated. S. albogriseolus 444 was shown to synthesize an extracellular proteolytic complex with metal-protease and trypsin-like activity defining differentiation of the substrate mycelium to the aerial one as well as the spore formation. The synthesis of the complex proceeded in the absence of the inductor in the medium i.e. constitutively. The complex heterogeneity was confirmed chromatographically. Low concentration of calcium ions (1.5 mM) stimulated the total caseinolytic activity and suppressed the activity of the trypsin-like proteases.


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Physiological role of extracellular proteases and calcium ions

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