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Biochimie. 1986 May;68(5):687-95.

Purification and properties of the endoglucanase C of Clostridium thermocellum produced in Escherichia coli.

Abstract

The celC gene, which codes for a new endoglucanase of Clostridium thermocellum, termed endoglucanase C, was found to be expressed when cloned in Escherichia coli. The enzyme was purified to electrophoretic homogeneneity from E. coli and its biochemical properties were studied. It differs from the previously studied endoglucanases A and B. In particular, endoglucanase C displays features common to endo- and exoglucanases, since it had a high activity on carboxymethylcellulose and on p-nitrophenyl-beta-D-cellobioside where only the agluconic bond was split. In addition, the enzyme was able to release cellobiose units from G3, G4 and G5 cellodextrins. Endoglucanase C was characterized by Western blot in a culture supernatant from C. thermocellum grown on cellulose, using an antiserum raised against the enzyme produced by E. coli.

PMID:
3015257
[Indexed for MEDLINE]
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