Mukherjee S, Chowdhury S, Ghorai S, Pal S, Khowala S. Cellobiase from Termitomyces clypeatus: activity and secretion in presence of glycosylation inhibitors.
Biotechnol Lett 2006;
28:1773-8. [PMID:
16912924 DOI:
10.1007/s10529-006-9150-3]
[Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2006] [Accepted: 07/04/2006] [Indexed: 11/28/2022]
Abstract
In presence of the glycosylation inhibitors, 2-deoxy-D-glucose (1 mg/ml), tunicamycin (30 microg/ml), 1-deoxynojirimycin (30 microg/ml) and D-glucono-delta-lactone (1 mg/ml), total cellobiase activity, in the extracellular, intracellular and cell bound fractions, of the fungus Termitomyces clypeatus grown in 20 ml cellobiose medium (1%, w/v) increased by 50-, 1.8-, 2.4-, 1.3-fold, respectively, with respect to control medium (16.3 U). The inhibitors also stimulated secretion of 95% of the total protein in culture medium, except D-glucono-delta-lactone which released 60% of the total protein. 2-Deoxy-D-glucose (1 mg/ml) led to production of extracellular cellobiase up to 40 U/ml, whereas in absence of the inhibitors only 0.59 U/ml enzyme was detected.
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