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:
Sep. 29, 1998
Filed:
Dec. 19, 1996
Steven Kovacevic, Indianapolis, IN (US);
Keith A Otto, Greenwood, IN (US);
Ramachandra N Rao, Indianapolis, IN (US);
Eli Lilly and Company, Indianapolis, IN (US);
Abstract
The present invention provides novel fusion proteins comprising cyclins and CDKs. A preferred embodiment of the invention provides fusion proteins comprising human cyclin D1 and human CDK4. The fusion proteins of the invention optionally contain modifications, which facilitate their purification. Addition of histidine residues to selected constructs allows purification via immobilized metal affinity chromatography. Antigenic determinants allowing monoclonal antibody-based affinity chromatography purification are provided in selected embodiments of the invention. Protease cleavage sites are incorporated in selected constructs to allow cleavage of the regions incorporated in the cyclin-CDK fusion proteins for purification. Additional modifications which facilitate purification include strepavadin binding domains and antigenic determinants for antibody affinity chromatography.