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:
Oct. 20, 2020
Filed:
Jul. 26, 2017
Kaneka Corporation, Osaka, JP;
Shinichi Yoshida, Hyogo, JP;
KANEKA CORPORATION, Osaka, JP;
Abstract
A first immunoglobulin κ chain variable region-binding peptide includes an amino acid sequence of SEQ ID NO: 21 with substitution of one or more amino acid residues at the 15position, the 16position, the 17position or the 18position, wherein an acid dissociation pH thereof is shifted to a neutral side. A second immunoglobulin κ chain variable region-binding peptide further includes deletion, substitution and/or addition of 1-20 amino acid residues at positions other than the 15position, the 16position, the 17position and the 18position. A third immunoglobulin κ chain variable region-binding peptide includes an amino acid sequence with a sequence identity of 80% or more to the amino acid sequence of the first immunoglobulin κ chain variable region-binding peptide.