Phytase mutants
AssigneeQingdao Vland Biotech Group Co., Ltd.
InventorsXiuxiu Wu, Huaming Wang
Life of this patent
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Abstract
Provided are mutants PHY1, PHY4 and PHY5 of a wild-type phytase APPA. After being treated for 10 min at 80° C., the residual enzyme activities of the mutants PHY1, PHY4 and PHY5 are respectively higher by 33.85%, 53.11% and 75.86% compared with that of APPA-M; after being treated for 5 min at 85° C., the residual enzyme activities of the mutants PHY1, PHY4 and PHY5 are respectively higher by 14.89%, 28.45% and 44.94% compared with that of APPA-M, and the heat resistance of these mutants is significantly higher than that of APPA-M.
Claims5
A phytase mutant comprising the amino acid sequence as set forth in SEQ ID NO:
- 3 or SEQ ID NO:
- 5 or SEQ ID NO:
- 7 or SEQ ID NO:
- 9.
Dependencies are inferred from the claim text.