THERMOSTABLE PHYTASE VARIANTS

摘要

The present invention relates to a phytase which has at least 70% identity to a phytase derived from E. coli and comprises at least one modification as compared to this phytase. These phytase variants have modified, preferably improved,properties, such as thermostability, temperature profile, pH profile, specific activity, performance in animal feed, reduced protease sensitiliby, and/or an modified glycosylation pattern. The invention also relates to DNA encoding these phytases, methods of their production, as well as the use thereof, e.g. in animal feed and animal feed additives.