Evaluation of the Spectrum of Proteolytic Activity of Micromycetes of the Genus Aspergillus in Relation to Proteins of the Hemostasis System

Q3 Agricultural and Biological Sciences Moscow University Biological Sciences Bulletin Pub Date : 2022-09-06 DOI:10.3103/s0096392522020079
A. A. Osmolovskiy, B. Şaş, A. V. Aleksandrova, N. A. Baranova, V. G. Kreyer
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引用次数: 2

Abstract

The activity of extracellular proteinases in seven strains of different species of micromycetes of the genus Aspergillus in relation to proteins of the hemostasis system was studied. Comparison of the values of enzymatic indices during the growth of strains on agar media with casein and fibrin, followed by their submerged fermentation fermentation and analysis of amidolytic activity with chromogenic peptide substrates of proteinases of the hemostasis system, made it possible to select the A. candidus A4 and A. crustosus A29 strains as promising producers of fibrinolytic proteinases. The proteinases formed by both strains were able to cleave the chromogenic peptide substrates of thrombin, plasmin, factor X, protein C, and urokinase, exhibiting high plasmin-like and thrombin-like activity and not having an activating effect on the proenzymes of the hemostasis system.

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曲霉属微菌与止血系统蛋白质的蛋白水解活性谱的评价
摘要本文研究了7株曲霉属微菌胞外蛋白酶活性与止血系统蛋白的关系。通过比较菌株在酪蛋白和纤维蛋白琼脂培养基上生长时的酶学指标,以及对止血系统蛋白酶的显色肽底物的深层发酵和酶解活性分析,确定了假单胞菌A4和甲壳假单胞菌A29菌株是有希望产生纤维蛋白溶解蛋白酶的菌株。这两种菌株形成的蛋白酶都能切割凝血酶、纤溶酶、因子X、蛋白C和尿激酶的显色肽底物,表现出高的纤溶酶样和凝血酶样活性,而对止血系统的前酶没有激活作用。
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来源期刊
Moscow University Biological Sciences Bulletin
Moscow University Biological Sciences Bulletin Agricultural and Biological Sciences-Agricultural and Biological Sciences (all)
CiteScore
1.00
自引率
0.00%
发文量
18
期刊介绍: Moscow University Biological Sciences Bulletin  is forum for research in all important areas of modern biology. It publishes original work on qualitative, analytical and experimental aspects of research. The scope of articles to be considered includes plant biology, zoology, ecology, evolutionary biology, biophysics, genetics, genomics, proteomics, molecular biology, cell biology, biochemistry, endocrinology, immunology, physiology, pharmacology, neuroscience, gerontology, developmental biology, bioinformatics, bioengineering, virology, and microbiology.
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