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:
Jul. 11, 2006
Filed:
Dec. 29, 2004
Applicants:
Xiao-song Tang, Hockessin, DE (US);
Qiong Cheng, Hockessin, DE (US);
Joanne Y. Shyr, Newark, DE (US);
Luan Tao, Claymont, DE (US);
Inventors:
Xiao-Song Tang, Hockessin, DE (US);
Qiong Cheng, Hockessin, DE (US);
Joanne Y. Shyr, Newark, DE (US);
Luan Tao, Claymont, DE (US);
Assignee:
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12N 9/02 (2006.01); C12N 9/00 (2006.01); C12N 1/20 (2006.01); C12N 15/00 (2006.01); C07H 21/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
Protein engineered nucleic acid fragments encoding a CrtO ketolase and a CrtZ hydroxylase are provided with increased astaxanthin synthesis activity. Methods using the present nucleic acid fragments are also provided for increasing or altering astaxanthin production in suitable production hosts.