Phytase variants

US7326554B2 · kind B2 · utility

Assignee

• Novozymes A/S · DK

Inventors

• Allan Svendsen · Paseo Los Muchachos, DK
• Soren Flensted Lassen · Farum, DK
• Dirk Kostrewa · Glückstadt, DE
• Luis Pasamontes · Montclair, US
• Martin Lehman · Princeton, US
• Andrea Tomschy · Weil am Rhein, DE
• Adolphus van Loon · Rheinfelden, CH
• Kurt Vogel · Basel, CH
• Markus Wyss · Liestal, CH

Key dates

• Filing date: Dec 12, 2003
• Grant date: Feb 5, 2008
• Expiry date: Sep 9, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S435/916
• WIPO field: Biotechnology
• WIPO sector: Chemistry

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.