POLYPEPTIDE HAVING PHYTASE ACTIVITY AND INCREASED TEMPERATURE RESISTANCE OF THE ENZYME ACTIVITY, AND NUCLEOTIDE SEQUENCE CODING SAID POLYPEPTIDE

The invention relates to a recombinant DNA molecule encoding a polypeptide having phytase activity and increased temperature stability and increased proteolytic stability of the enzyme activity. The DNA sequence has been obtained by variation of the mature wild-type E. coli phytase sequence with def...

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Bibliographische Detailangaben
Hauptverfasser:	WINTER BRUNO, NGUYEN KHANH Q
Format:	Patent
Sprache:	eng
Schlagworte:	BEER BIOCHEMISTRY CHEMISTRY COMPOSITIONS THEREOF CULTURE MEDIA ENZYMOLOGY FODDER FOODS OR FOODSTUFFS FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J HUMAN NECESSITIES METALLURGY MICROBIOLOGY MICROORGANISMS OR ENZYMES MUTATION OR GENETIC ENGINEERING PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS SPIRITS THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT THEIR TREATMENT, NOT COVERED BY OTHER CLASSES VINEGAR WINE
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Beschreibung
Zusammenfassung:	The invention relates to a recombinant DNA molecule encoding a polypeptide having phytase activity and increased temperature stability and increased proteolytic stability of the enzyme activity. The DNA sequence has been obtained by variation of the mature wild-type E. coli phytase sequence with defined amino acid positions being modified in comparison to the wild-type sequence or with the sequences having N- and/or C-terminal extensions, respectively. The invention further relates to a method for expressing the recombinant phytase as well as its use in the food and animal feed technologies.