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. 10, 2020
Filed:
Nov. 06, 2017
Applicant:
Seattle Genetics, Inc., Bothell, WA (US);
Inventors:
Swapnil Bhargava, Kirkland, WA (US);
Cheng-Wei Aaron Chen, Bothell, WA (US);
Matthew J. Leith, Issaquah, WA (US);
Assignee:
Seattle Genetics, Inc., Bothell, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 39/00 (2006.01); A61K 47/68 (2017.01); A61K 51/10 (2006.01); C07K 16/28 (2006.01); C07K 16/00 (2006.01);
U.S. Cl.
CPC ...
A61K 47/6889 (2017.08); A61K 51/10 (2013.01); C07K 16/00 (2013.01); C07K 16/28 (2013.01); C07K 2317/14 (2013.01); C07K 2317/52 (2013.01);
Abstract
The present invention provides a method for removing cysteine caps from antibodies and re-capping the antibodies with cysteine molecules. The methods include, inter alia, culturing a host cell comprising a protein molecule having at least one capped engineered cysteine residue, and contacting the cell culture with cystine. Dissolved oxygen levels can be manipulated in the cell culture to further enhance the removal and re-capping process.