Method for improving antibody

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United States of America Patent

PATENT NO 9873730
SERIAL NO

11815838

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Abstract

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The present invention provides for a method for improving properties of an antibody such as an expression level and stability. A method for obtaining an antibody with an improved expression level and/or stability by modifying a human antibody or a humanized antibody, characterized by that at least any one of the amino acid residues at position 8, 12, 15 or 18 (according to Kabat numbering) in a light chain variable region (hereinafter referred to as “VL chain”) of a human antibody or a humanized antibody is substituted with a different amino acid other than proline or cysteine, and a human antibody or a humanized antibody or a human antibody fragment or a humanized antibody fragment with an improved expression level and/or stability which are obtained by said method.

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Patent Owner(s)

Patent OwnerAddress
KM BIOLOGICS CO LTD1-6-1 OKUBO KITA-KU KUMAMOTO-SHI KUMAMOTO 8608568 ?8608568

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nakashima, Toshihiro Kikuchi, JP 44 605
Torikai, Masaharu Kikuchi, JP 15 93

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