Patent ID: 8652813

Claim:
A recombinant variant β-glucosidase, comprising a substitution set selected from the group consisting of: T151S-Y642N-N651K, K101R-T151S-K343R-N356S-S409N-Y642N-N651K, M1T-K55R-K101R-T151S-R331K-Y332C-K343R-N356S-S409N-Y642N, M1T-K101R-T151S-K292E-K343R-S409N-Y642N-P740S, M1T-T151S-K343R-S409N-A479V-Y642N-Y680F, L150V-T151S-K343R-S409N-K457R-Y642N-N651K, and S87N-T151S-F288Y-Y642N-N651K of SEQ ID NO: 4, wherein said recombinant variant β-glucosidase has greater enzymatic activity than the amino acid sequence of SEQ ID NO: 4.