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:
Apr. 19, 1988
Filed:
Sep. 27, 1984
Ramamoorthy Belagaje, Indianapolis, IN (US);
Janet K Epp, Indianapolis, IN (US);
JoAnn Hoskins, Indianapolis, IN (US);
Hansen M Hsiung, Indianapolis, IN (US);
George L Long, Indianapolis, IN (US);
Brigitte E Schoner, Zionsville, IN (US);
Eli Lilly and Company, Indianapolis, IN (US);
Abstract
The present invention comprises improved derivatives of the tryptophan operon useful for expressing fused gene products in E. coli and relate organism. Two of the improved derivatives disclosed are encoded on 0.43 and 0.55 kb EcoRI restriction fragments from plasmids pCZ20 and pLEBGH2 (in strains NRRL B-15881 and NRRL B-15882), respectively. The modified derivatives have been placed on recombinant DNA cloning and expression vectors. A variety of expression vectors have been constructed that drive expression of fused gene products. Two novel gene sequences, encoding insulin-like growth factors I and II, have been expressed with the modified tryptophan operon system.