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1. US20190359721 - Antigen-binding domain, and polypeptide including conveying section

Office
United States of America
Application Number 16463222
Application Date 28.11.2017
Publication Number 20190359721
Publication Date 28.11.2019
Grant Number 11168139
Grant Date 09.11.2021
Publication Kind B2
IPC
C40B 40/10
CCHEMISTRY; METALLURGY
40COMBINATORIAL TECHNOLOGY
BCOMBINATORIAL CHEMISTRY; LIBRARIES, e.g. CHEMICAL LIBRARIES, IN SILICO LIBRARIES
40Libraries per se, e.g. arrays, mixtures
04Libraries containing only organic compounds
10Libraries containing peptides or polypeptides, or derivatives thereof
C07K 16/28
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
KPEPTIDES
16Immunoglobulins, e.g. monoclonal or polyclonal antibodies
18against material from animals or humans
28against receptors, cell surface antigens or cell surface determinants
C07K 16/30
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
KPEPTIDES
16Immunoglobulins, e.g. monoclonal or polyclonal antibodies
18against material from animals or humans
28against receptors, cell surface antigens or cell surface determinants
30from tumour cells
G01N 33/68
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/-G01N31/131
48Biological material, e.g. blood, urine; Haemocytometers
50Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
68involving proteins, peptides or amino acids
CPC
C07K 16/2809
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
KPEPTIDES
16Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
18against material from animals or humans
28against receptors, cell surface antigens or cell surface determinants
2803against the immunoglobulin superfamily
2809against the T-cell receptor (TcR)-CD3 complex
C07K 16/2866
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
KPEPTIDES
16Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
18against material from animals or humans
28against receptors, cell surface antigens or cell surface determinants
2866against receptors for cytokines, lymphokines, interferons
C07K 16/303
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
KPEPTIDES
16Immunoglobulins [IGs], e.g. monoclonal or polyclonal antibodies
18against material from animals or humans
28against receptors, cell surface antigens or cell surface determinants
30from tumour cells
303Liver or Pancreas
C40B 40/10
CCHEMISTRY; METALLURGY
40COMBINATORIAL TECHNOLOGY
BCOMBINATORIAL CHEMISTRY; LIBRARIES, e.g. CHEMICAL LIBRARIES, IN SILICO LIBRARIES
40Libraries per se, e.g. arrays, mixtures
04Libraries containing only organic compounds
10Libraries containing peptides or polypeptides, or derivatives thereof
G01N 33/6854
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
48Biological material, e.g. blood, urine
50Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
68involving proteins, peptides or amino acids
6854Immunoglobulins
C07K 2317/22
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
KPEPTIDES
2317Immunoglobulins specific features
20characterized by taxonomic origin
22from camelids, e.g. camel, llama or dromedary
Applicants CHUGAI SEIYAKU KABUSHIKI KAISHA
Inventors Tomoyuki Igawa
Hiroyuki Ishikawa
Naoka Hironiwa
Agents Nixon & Vanderhye P.C.
Priority Data JP2016-229794 28.11.2016 JP
Title
(EN) Antigen-binding domain, and polypeptide including conveying section
Abstract
(EN)

The present invention relates to a polypeptide comprising an antigen binding domain and a carrying moiety having an inhibiting domain that inhibits the antigen binding activity of the antigen binding domain, and having a longer half-life than that of the antigen binding domain existing alone, methods for producing and screening for the polypeptide, a pharmaceutical composition comprising the polypeptide, methods for producing and screening for a single-domain antibody whose antigen binding activity is inhibited by associating with particular VL, VH or VHH, and a fusion polypeptide library including a single-domain antibody whose antigen binding activity is inhibited by associating with particular VL, VH or VHH.


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