申请人:TOKYO INSTITUTE OF TECHNOLOGY
公开号:US20210311030A1
公开(公告)日:2021-10-07
Provided is an antibody or antibody fragment labeled with a fluorescent dye having the following properties (1) and (2):
(1) the fluorescent dye is quenched in the absence of an antigen and the quenching of the fluorescent dye is cancelled in the presence of an antigen; and
(2) the fluorescent dye is contained in a compound binding to an amino acid residue in the antibody or antibody fragment.