Phytases with improved thermal stability
US8540984B2 · kind B2 · utility
5Cited by
96References
65Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 3, 2007 |
| Grant date | Sep 24, 2013 |
| Priority date | — |
| Expiry date | Aug 4, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N9/16
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
The invention provides variant phytase enzymes having increased thermal stability relative to their counterpart parent enzymes. The modifications to the enzymes include both single substitutions and various combinations of substitutions that provide improved stability and activity. The invention further provides nucleic acids encoding the variant phytase enzymes, host cells and vectors containing and expressing them, as well as feed compositions useful for providing improved nutrition, particularly with respect to the bioavailability of dietary phosphate, calcium, iron and zinc, among others.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.