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:
Dec. 18, 2012
Filed:
Sep. 22, 2010
Edward J. Mullaney, Crandon, WI (US);
Abul H. J. Ullah, Slidell, LA (US);
Xin Gen Lei, Ithaca, NY (US);
Edward J. Mullaney, Crandon, WI (US);
Abul H. J. Ullah, Slidell, LA (US);
Xin Gen Lei, Ithaca, NY (US);
The United States of America as represented by the Secretary of Agriculture, Washington, DC (US);
Abstract
Disclosed herein is site-directed mutagenesis of a cloned phyA gene employed to replaced cysteine residues involved in disulfide bridge formation with another amino acid. Also disclosed herein is an isolated mutant phytase comprising an amino acid sequence having at least 96 percent sequence identity to SEQ. ID. NO: 6 and containing a double-substitution amino acid residue substitution of residue 31 and residue 40 of SEQ. ID. NO: 6, wherein said isolated mutant phytase has phytase activity.