B THERMOSTABLE RECOMBINANT CELLULASE B PROTEIN DERIVED FROM THERMOTOGA MARITIMA AND THE USES THEREOF

摘要

The present invention relates to a thermostable recombinant cellulase protein derived from Thermotoga maritima and uses thereof. Disclosed are: a thermostable recombinant cellulase protein, comprising a histidine tag, and a cellulase B protein derived from Thermotoga maritima with a signal peptide removed; and a gene encoding the thermostable recombinant cellulase protein. The recombinant cellulase B protein of the present invention is an improved thermostable cellulase B protein, whose pH and temperature with optimum activity are more favorable for cellulolysis, and thus can be very useful in many industries, such as food, textiles and paper processing industry decomposing a large amount of cellulose.