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:
Jun. 04, 1996
Filed:
Apr. 16, 1992
Applicant:
Inventors:
Lawrence S Cousens, Oakland, CA (US);
Patricia Tekamp-Olson, San Anselmo, CA (US);
Assignee:
Chiron Corporation, Emeryville, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
C12N / ; C12N / ; C12N / ; C07K / ;
U.S. Cl.
CPC ...
435 691 ; 43525233 ; 43525421 ; 530418 ; 530420 ;
Abstract
A method for isolating a desired protein which comprises: providing a host cell expressing the desired protein as an insoluble aggregate; culturing the host cell with an effective mount of Cu.sup.++ ; disrupting the host cell producing a lysate; incubating the insoluble fraction non-disulfide-bond reducing or non-copper competing chaotropic conditions to solubilize contaminants; separating the insoluble from the soluble fraction; and exposing the insoluble fraction to disulfide-bond reducing or copper competing chaotropic conditions to solubilize the desired protein.