Dual-Performing Vinyltetrazine for Rapid, Selective Bioconjugation and Functionalization of Cysteine Proteins.

IF 3.5 2区 生物学 Q2 BIOCHEMISTRY & MOLECULAR BIOLOGY
Mengyang Chang, Hang Xu, Yue Dong, Giri Gnawali, Fangchao Bi, Wei Wang
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引用次数: 0

Abstract

Although methods for Cys-specific bioconjugation and functionalization of proteins have been developed and widely utilized in biomolecule engineering and therapeutic development, reagents for this purpose are generally designed to accomplish bioconjugation only. Consequently, additional clickable groups must be attached to these reagents to accomplish functionalization. Herein, we describe a new, simple, dual-performing bioconjugation-functionalization reagent, VMeTz, which possesses an electron-withdrawing tetrazine (Tz) substituted vinyl (V) moiety to serve as both a Michael receptor for selective conjugation with Cys and a site for click with TCO derivatives to introduce functionality. Critically, VMeTz contains a methyl group that prevents the formation of multiple Tz-containing Cys-adducts. Reactions of VMeTz with Cys-containing peptides and proteins both in vitro and in live cells produce single stable Michael adducts with high selectivity. Moreover, the Cys-VMeTz peptide and protein conjugates undergo facile click reactions with TCO-functionalized reagents for labeling and protein profiling. Furthermore, VMeTz selectively activates and delivers the TCO-caged toxic substances Dox and PROTAC ARV-771 to cancer cells to produce therapeutic effects that are comparable to those of the parent drugs. Collectively, the studies demonstrate that VMeTz is a useful reagent for therapeutically significant Cys-specific protein bioconjugation and functionalization.

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来源期刊
ACS Chemical Biology
ACS Chemical Biology 生物-生化与分子生物学
CiteScore
7.50
自引率
5.00%
发文量
353
审稿时长
3.3 months
期刊介绍: ACS Chemical Biology provides an international forum for the rapid communication of research that broadly embraces the interface between chemistry and biology. The journal also serves as a forum to facilitate the communication between biologists and chemists that will translate into new research opportunities and discoveries. Results will be published in which molecular reasoning has been used to probe questions through in vitro investigations, cell biological methods, or organismic studies. We welcome mechanistic studies on proteins, nucleic acids, sugars, lipids, and nonbiological polymers. The journal serves a large scientific community, exploring cellular function from both chemical and biological perspectives. It is understood that submitted work is based upon original results and has not been published previously.
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