Patent ID: 7790430

Claim:
A cellulase selected from the group consisting of: (a) a cellulase comprising the amino acid sequence of SEQ ID NO: 1, wherein said cellulase has an amino acid substitution at position 166 of SEQ ID NO: 1, (b) a cellulase comprising the amino acid sequence of SEQ ID NO:1, wherein said cellulase has one additional amino acid at the N-terminus of said cellulase, and wherein said cellulase has an amino acid substitution at position 166 of SEQ ID NO: 1, (c) a cellulase comprising the amino acid sequence of SEQ ID NO: 1, wherein said cellulase has a deletion of the N-terminal amino acid of SEQ ID NO: 1, and wherein said cellulase has an amino acid substitution at position 166 of SEQ ID NO: 1, and (d) a cellulase comprising the amino acid sequence of SEQ ID NO: 1, wherein said cellulase has a plurality of additional amino acids at the N-terminus of said cellulase, and wherein said cellulase has an amino acid substitution at position 166 of SEQ ID NO: 1.