Abstract
The ability to produce extracellular O-glycosylhydrolases was studied in 14 strains of marine filamentous fungi sampled from the bottom sediments of the South China Sea. The following activities were detected in the culture liquids of the fungi: N-acetyl-β-D-glucosaminidase, β-D-glucosidase, β-D-galactosidase, β-1,3-glucanase, amylase, and pustulanase. β-1,3-Glucanases were isolated by ultrafiltration, hydrophobic interaction chromatography, and ion exchange chromatography, and their properties were studied. Data on products of enzymatic digestion of laminaran, absence of transglycosylation activity, and the pattern of action of natural inhibitors confirmed that β-1,3-glucanase belonged to the exo type. Inhibitor analysis demonstrated the role of a thiol group and tryptophan and tyrosine residues in the catalytic activity.
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Burtseva, Y.V., Verigina, N.S., Sova, V.V. et al. O-Glycosylhydrolases of Marine Filamentous Fungi: β-1,3-Glucanases of Trichoderma aureviride . Applied Biochemistry and Microbiology 39, 475–481 (2003). https://doi.org/10.1023/A:1025444602229
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DOI: https://doi.org/10.1023/A:1025444602229