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:
Nov. 14, 1989
Filed:
May. 09, 1985
Applicant:
Inventors:
Stephen J Brewer, High Wycombe, GB;
Helmut M Sassenfeld, Benson, GB;
Assignee:
G. D. Searle & Co., Chicago, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07K / ; C07K / ;
U.S. Cl.
CPC ...
530351 ; 530350 ; 530324 ; 530399 ; 424 854 ;
Abstract
Fused-Polypeptides comprising a polypeptide product and a covalently bonded charged amino acid polymer are disclosed. Methods of detecting the presence of the charged amino acid polymer are used to quantitate the presence of the fused-polypeptides either in crude or purified solutions. The charged amino acid polymer is hydrolyzed using an exopeptidase which leaves the polypeptide product. Examples using polyarginine and carboxypeptidase B to produce urogastrone and gamma interferon are included.