{HEAD ~ Additional specific amino acid substitutions} are also disclosed which characterize and distinguish {TAIL ~ additional phytases} of the invention having improved properties such as temperature and pH stability, pH activity profile, temperature activity profile, substrate profile, improved performance in animal feed in vitro or in vivo 
{ HEAD ~ Additional specific amino acid substitutions } are also disclosed which characterize and distinguish { TAIL ~ additional phytases } of the invention having improved properties such as temperature and pH stability , pH activity profile , temperature activity profile , substrate profile , improved performance in animal feed in vitro or in vivo
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