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:
Nov. 10, 2009
Filed:
Sep. 07, 2007
Applicants:
Hsueh-ling Cheng, Pingtung County, TW;
Yo-chia Chen, Pingtung County, TW;
Yu-chuan Chiang, Puzih, TW;
Inventors:
Hsueh-Ling Cheng, Pingtung County, TW;
Yo-Chia Chen, Pingtung County, TW;
Yu-Chuan Chiang, Puzih, TW;
Assignee:
National Pingtung University of Science & Technology, Neipu Hsiang, TW;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C12P 21/06 (2006.01); C12N 9/00 (2006.01); C12N 9/26 (2006.01); C12N 1/20 (2006.01); C12N 15/00 (2006.01); C07H 21/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A mutated xylanase gene with a broad pH range of reaction includes a forty-first amino acid or a twenty-first amino acid generated from transforming asparagine to aspartic acid so as to form the mutated xylanase gene. A site-specific mutagenesis method includes the step of: mutating the forty-first amino acid or the twenty-first amino acid of the xylanase gene by transforming asparagine to aspartic acid so as to form the mutated xylanase gene.