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:
Apr. 18, 2023
Filed:
Nov. 08, 2018
Applicant:
Tosoh Corporation, Yamaguchi, JP;
Inventors:
Assignee:
TOSOH CORPORATION, Yamaguchi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07K 14/31 (2006.01); C07K 1/14 (2006.01);
U.S. Cl.
CPC ...
C07K 1/14 (2013.01); C07K 14/31 (2013.01);
Abstract
The invention aims to provide an immunoglobulin-binding protein having improved chemical stability, especially stability against alkali. The object can be achieved by improving stability against alkali by substituting an amino acid residue(s) at a particular position(s) in an immunoglobulin-binding domain such as domain C of protein A derived from a bacterium belonging to the genus, to another/other particular amino acid residue(s).