Site-directed mutagenesis of Escherichia coli phytase

Chemistry: molecular biology and microbiology – Enzyme – proenzyme; compositions thereof; process for... – Hydrolase

Reexamination Certificate

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C435S252300, C435S252330, C435S254100, C435S254110, C435S254220, C435S254230, C435S320100, C536S023200

Reexamination Certificate

active

06841370

ABSTRACT:
The present invention relates to an isolated mutant acid phosphatase/phytase with improved enzymatic properties. The mutant acid phosphatase/phytase composition is particularly useful in animal feed compositions.

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