The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 15, 2005
Filed:
May. 24, 2001
Jay M. Short, Rancho Santa Fe, CA (US);
Keith A. Kretz, San Marcos, CA (US);
Kevin A. Gray, San Diego, CA (US);
Nelson Robert Barton, San Diego, CA (US);
James B. Garrett, Poway, CA (US);
Eileen O'donoghue, San Diego, CA (US);
Eric J. Mathur, Carlsbad, CA (US);
Jay M. Short, Rancho Santa Fe, CA (US);
Keith A. Kretz, San Marcos, CA (US);
Kevin A. Gray, San Diego, CA (US);
Nelson Robert Barton, San Diego, CA (US);
James B. Garrett, Poway, CA (US);
Eileen O'Donoghue, San Diego, CA (US);
Eric J. Mathur, Carlsbad, CA (US);
Diversa Corporation, San Diego, CA (US);
Abstract
A purified and modified phytase enzyme fromK12 appA phytase is provided. The enzyme has phytase activity and improved thermal tolerance as compared with the wild-type enzyme. In addition, the enzyme has improved protease stability at low pH. Glycosylation of the modified phytase provided a further improved enzyme having improved thermal tolerance and protease stability. The enzyme can be produced from native or recombinant host cells and can be used to aid in the digestion of phytate where desired. In particular, the phytase of the present invention can be used in foodstuffs to improve the feeding value of phytate rich ingredients.