Phytase variants
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United States of America Patent
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Feb 5, 2008
Grant Date -
Sep 9, 2004
app pub date -
Dec 12, 2003
filing date -
Mar 23, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to phytase variants, their preparation and uses, which phytase variants, when aligned according to FIG. 1, are amended as compared to a model phytase in at least one of a number of positions. Preferred model phytases are basidiomycete and ascomycete phytases, such as Peniophora phytase and Aspergillus phytases. Preferred phytase variants exhibits amended activity characteristics, such as improved specific activity and/or improved thermostability.
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