Stabilized human Igg4 antibodies

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United States of America Patent

PATENT NO 8911726
SERIAL NO

11663340

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Abstract

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A highly stable mutant of human IgG4 antibody is provided. Such antibody is an antibody in which the CH3 domain of human IgG4 is substituted with the CH3 domain of human IgG1 and which exhibits inhibited aggregate formation, an antibody in which the CH3 and CH2 domains of human IgG4 are substituted with the CH3 and CH2 domains of human IgG1, respectively, or an antibody in which arginine at position 409 indicated in the EU index proposed by Kabat et al. of human IgG4 is substituted with lysine and which exhibits inhibited aggregate formation.

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Patent Owner(s)

Patent OwnerAddress
KYOWA KIRIN CO LTDTOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Takahashi, Nobuaki Gunma, JP 244 3312
Yoshida, Hideaki Gunma, JP 172 2297

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