Properties of Extracellular Proteinase of the Micromycete Aspergillus ustus 1 and Its High Activity during Fibrillary-Proteins Hydrolysis

Authors :: S. V. Shabunin
A. A. Osmolovskiy
S. K. Komarevtsev
E. A. Popova
V. G. Kreyer
Source :: Applied Biochemistry and Microbiology. 57:200-205
Publication Year :: 2021
Publisher :: Pleiades Publishing Ltd, 2021.
Abstract: A new, nonglycosylated, serine proteinase capable of hydrolyzing collagen, elastin, and fibrin was isolated from a complex preparation of proteins formed by the micromycete A. ustus 1 under solid-state fermentation. The enzyme had a molecular weight of 33 kDa and a pI of 4.6. The pH-optimum (6.0) and temperature optimum (41°C) of the work of this proteinase were also determined.

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