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. 09, 2018
Filed:
Mar. 28, 2014
Kyowa Hakko Kirin Co., Ltd, Tokyo, JP;
Nobuaki Takahashi, Takasaki, JP;
Hideaki Yoshida, Takasaki, JP;
KYOWA HAKKO KIRIN CO., LTD, Tokyo, JP;
Abstract
It is intended to provide highly stable variants of human antibody IgG2 and IgG3 subclasses. The present invention provides an IgG heavy chain comprising the constant region of a human IgG2 heavy chain having at least a substitution of Y for F at the 300th position, L for V at the 309th position, or A for T at the 339th position designated by the EU index of Kabat et al. and an IgG heavy chain comprising the constant region of a human IgG3 heavy chain having at least a substitution of K for N at the 392nd position or V for M at the 397th position designated by the EU index of Kabat et al. The present invention also provides monoclonal antibodies comprising these heavy chains.