Mutant e. coli appa phytase enzymes and natural variants thereof, nucleic acids encoding such phytase enzymes, vectors and host cells incorporating same and methods of making and using same

The invention relates to a composition comprising a improved of inositol and mutant phosphatase cells, inositol and phosphatases is wherein producing. Also provides a preparation and inositol and protein phosphatase of the inositol and phosphatases the method and wherein the material of the application of supplement.