| abstract |
The invention discloses a cellobiohydrolase mutant, the activity of which provides a degradation function in cellulose degradation, and the cellobiohydrolase mutant is protein as follows: as shown in SEQ ID NO:1 is substituted with other amino acids, and the other amino acids are lysine, arginine, aspartic acid, glutamic acid or glutamine. The invention also discloses the application of the cellobiohydrolase mutant in cellulose hydrolysis. The cellobiohydrolase mutant has the activity of hydrolyzing cellulose, obtains the mutant with improved activity, and improves the hydrolysis effect on the cellulose. |