Issue 68, 2024

Discovery and development of tyrosine-click (Y-click) reaction for the site-selective labelling of proteins

Abstract

With the versatile utility of bio-conjugated peptides and proteins in the fields of agriculture, food, cosmetics and pharmaceutical industry, the design of smart protocols to conjugate and modulate biomolecules becomes highly desirable. During this process, the most important consideration for biochemists is the retention of configurational integrity of the biomolecules. Moreover, this type of bioconjugation of peptide and protein becomes frivolous if the reaction is not performed with precise amino acid residues. Hence, chemo-selective, as well as site-selective reactions, that are biocompatible and possess an appropriate level of reactivity are necessary. Based on click chemistry, there are so many tyrosine (Y) conjugation strategies, such as sulfur-fluoride exchange (SuFEx), sulfur-triazole exchange (SuTEx), coupling with π-allyl palladium complexes, diazonium salts, diazodicarboxyamide-based reagents etc. Among these techniques, diazodicarboxyamide-based Y-conjugation, which is commonly known as the “tyrosine-click (Y-click) reaction”, has met the expectations of synthetic and biochemists for the tyrosine-specific functionalization of biomolecules. Over the past one and a half decades, significant progress has been made in the classical organic synthesis approach, as well as its biochemical, photochemical, and electrochemical variants. Despite such progress and increasing importance, the Y-click reaction has not been reviewed to document variations in its methodology, applications, and broad utility. The present article aims to provide a summary of the approaches for the modulation of biomolecules at the hotspot of tyrosine residue by employing the Y-click reaction. The article also highlights its application for the mapping of proteins, imaging of living cells, and in the fields of analytical and medicinal chemistry.

Graphical abstract: Discovery and development of tyrosine-click (Y-click) reaction for the site-selective labelling of proteins

Article information

Article type
Highlight
Submitted
26 Apr 2024
Accepted
10 Jun 2024
First published
11 Jun 2024

Chem. Commun., 2024,60, 8978-8996

Discovery and development of tyrosine-click (Y-click) reaction for the site-selective labelling of proteins

J. Chatterjee, A. Bandyopadhyay, M. Pattabiraman and R. Sarkar, Chem. Commun., 2024, 60, 8978 DOI: 10.1039/D4CC01997K

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