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:
Sep. 15, 2020
Filed:
Aug. 25, 2017
Applicant:
Kaneka Corporation, Osaka, JP;
Inventor:
Shinichi Yoshida, Hyogo, JP;
Assignee:
KANEKA CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07K 14/31 (2006.01); C07K 14/315 (2006.01); C12N 15/09 (2006.01); G01N 30/88 (2006.01); C07K 16/24 (2006.01); A61K 39/44 (2006.01); A61K 38/00 (2006.01); A61K 39/00 (2006.01); C07K 19/00 (2006.01); B01J 20/289 (2006.01); B01J 20/32 (2006.01); B01D 15/38 (2006.01);
U.S. Cl.
CPC ...
C07K 14/31 (2013.01); A61K 39/44 (2013.01); B01J 20/289 (2013.01); B01J 20/321 (2013.01); B01J 20/3212 (2013.01); B01J 20/3219 (2013.01); B01J 20/3274 (2013.01); C07K 14/315 (2013.01); C07K 16/241 (2013.01); C12N 15/09 (2013.01); G01N 30/88 (2013.01); A61K 38/00 (2013.01); A61K 2039/505 (2013.01); B01D 15/3809 (2013.01); C07K 19/00 (2013.01); C07K 2317/55 (2013.01); C07K 2317/732 (2013.01); C07K 2317/92 (2013.01); C07K 2319/23 (2013.01); C07K 2319/50 (2013.01);
Abstract
A first Fab region-binding peptide includes an amino acid sequence selected from the group consisting of SEQ ID NOs: 1 to 5 with substitution of one or more amino acid residues at the 17position and the 36position, wherein an acid dissociation pH thereof is shifted to a neutral side. A second Fab region-binding peptide further includes deletion, substitution and/or addition of one or more amino acid residues at positions other than the 17position and the 36position. A third Fab region-binding peptide includes an amino acid sequence with a sequence identity of 80% or more to the amino acid sequence of the first Fab region-binding peptide.