Photoredox-Catalyzed Labeling of Hydroxyindoles with Chemoselectivity (PhotoCLIC) for Site-Specific Protein Bioconjugation.
Angew Chem Int Ed Engl
; 62(27): e202300961, 2023 07 03.
Article
em En
| MEDLINE
| ID: mdl-37219923
ABSTRACT
We have developed a novel visible-light-catalyzed bioconjugation reaction, PhotoCLIC, that enables chemoselective attachment of diverse aromatic amine reagents onto a site-specifically installed 5-hydroxytryptophan residue (5HTP) on full-length proteins of varied complexity. The reaction uses catalytic amounts of methylene blue and blue/red light-emitting diodes (455/650â
nm) for rapid site-specific protein bioconjugation. Characterization of the PhotoCLIC product reveals a unique structure formed likely through a singlet oxygen-dependent modification of 5HTP. PhotoCLIC has a wide substrate scope and its compatibility with strain-promoted azide-alkyne click reaction, enables site-specific dual-labeling of a target protein.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Azidas
/
Proteínas
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article