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:
Jan. 04, 1994
Filed:
Dec. 11, 1989
Applicant:
Inventor:
John W Gotto, Suffern, NY (US);
Assignee:
American Cyanamid Company, Wayne, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; C07K / ; C07K / ; C07K / ;
U.S. Cl.
CPC ...
530413 ; 424 92 ; 435 712 ; 530350 ; 530417 ; 530825 ;
Abstract
A process for extracting and purifying a protein having an apparent molecular weight of about 69,000 daltons from the outer membrane of the bacterium Bordetella pertussis is provided. The process includes inactivating Bordetella pertussis cells with a bacteriostatic agent, repetitive extraction, and purification of the 69,000 dalton protein from extract by dye ligand chromatography followed by chromatofocusing. The process results in improved yield and stability of the 69,000 dalton protein.