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Title:
EPITOPE REGION-BRIDGING BIPARATOPIC ANTIBODY AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2021/200840
Kind Code:
A1
Abstract:
The present disclosure provides a technique for designing an epitope region-bridging biparatopic antibody, and also provides, through this technique, an antibody that has an improved agonist or antagonist function for an antigen or that promotes or enhances a chemical reaction catalyzed by an enzyme serving as an an antigen. Provided is an epitope region-bridging biparatopic antibody, an antigen-binding fragment thereof or a functional equivalent of the same that has antigen specificities to a first epitope belonging to a first epitope group, among a plurality of epitope region groups in an antigen, and to a second epitope belonging to a second epitope group contained in an epitope region different from the epitope region in which the first epitope group is contained, said antibody comprising the sequences of a heavy chain variable region and a light chain variable region derived from an antibody against the first epitope and the sequences of a heavy chain variable region and a light chain variable region derived from an antibody against the second epitope.

Inventors:
AKIBA HIROKI (JP)
TSUMOTO KOUHEI (JP)
NAGATA SATOSHI (JP)
Application Number:
PCT/JP2021/013341
Publication Date:
October 07, 2021
Filing Date:
March 29, 2021
Export Citation:
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Assignee:
NAT INST BIOMEDICAL INNOVATION HEALTH & NUTRITION (JP)
International Classes:
C07K16/00; C07K16/28; C07K16/46; C12N15/13; C40B40/10
Domestic Patent References:
WO2018092907A12018-05-24
WO2018092907A12018-05-24
WO2017143838A12017-08-31
WO2017014383A12017-01-26
Foreign References:
JP2020061014A2020-04-16
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Attorney, Agent or Firm:
YAMAMOTO, Shusaku et al. (JP)
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