Patent ID: 7741093

Claim:
A cellulase fusion protein comprising: a first amino acid sequence of SEQ ID NO: 2 or a biologically active fragment thereof from the 20K cellulase of Melanocarpus albomyces , wherein the first amino acid sequence has a cellulase activity; a second amino acid sequence of a linker and cellulose binding domain (CBD) of Trichoderma reesei cellobiohydrolase I from SEQ ID NO:4 or a biologically active fragment thereof, wherein the second amino acid sequence has a CBD activity; and a junction region having the following formula: 1 Val- 2 Gln- 3 Ile- 4 Pro- 5 Ser- 6 Ser (SEQ ID NO: 52) between said first amino acid sequence and said second amino acid sequence, whereby a stable fusion protein is obtained.