Emerging TACnology: Heterobifunctional Small Molecule Inducers of Targeted Posttranslational Protein Modifications

Posttranslational modifications (PTMs) play an important role in cell signaling and they are often deregulated in disease. This review addresses recent advances in the development of heterobifunctional small molecules that enable targeting or hijacking PTMs. This emerging field is spearheaded by pro...

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Main Author: Pascal Heitel
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/28/2/690
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author Pascal Heitel
author_facet Pascal Heitel
author_sort Pascal Heitel
collection DOAJ
description Posttranslational modifications (PTMs) play an important role in cell signaling and they are often deregulated in disease. This review addresses recent advances in the development of heterobifunctional small molecules that enable targeting or hijacking PTMs. This emerging field is spearheaded by proteolysis-targeting chimeras (PROTACs), that induce ubiquitination of their targets and, thus, tag them for degradation by the proteasome. Within the last decade, several improvements have been made to enhance spatiotemporal control of PROTAC-induced degradation as well as cell permeability. Inspired by the success story of PROTACs, additional concepts based on chimeric small molecules have emerged such as phosphatase-recruiting chimeras (PhoRCs). Herein, an overview of strategies causing (de-)phosphorylation, deubiquitination as well as acetylation is provided, and the opportunities and challenges of heterobifunctional molecules for drug discovery are highlighted. Although significant progress has been achieved, a plethora of PTMs have not yet been covered and PTM-inducing chimeras will be helpful tools for chemical biology and could even find application in pharmacotherapy.
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spelling doaj.art-2e4866a0073c4a14ae135d30b5b0d8692023-11-30T23:43:23ZengMDPI AGMolecules1420-30492023-01-0128269010.3390/molecules28020690Emerging TACnology: Heterobifunctional Small Molecule Inducers of Targeted Posttranslational Protein ModificationsPascal Heitel0Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, UKPosttranslational modifications (PTMs) play an important role in cell signaling and they are often deregulated in disease. This review addresses recent advances in the development of heterobifunctional small molecules that enable targeting or hijacking PTMs. This emerging field is spearheaded by proteolysis-targeting chimeras (PROTACs), that induce ubiquitination of their targets and, thus, tag them for degradation by the proteasome. Within the last decade, several improvements have been made to enhance spatiotemporal control of PROTAC-induced degradation as well as cell permeability. Inspired by the success story of PROTACs, additional concepts based on chimeric small molecules have emerged such as phosphatase-recruiting chimeras (PhoRCs). Herein, an overview of strategies causing (de-)phosphorylation, deubiquitination as well as acetylation is provided, and the opportunities and challenges of heterobifunctional molecules for drug discovery are highlighted. Although significant progress has been achieved, a plethora of PTMs have not yet been covered and PTM-inducing chimeras will be helpful tools for chemical biology and could even find application in pharmacotherapy.https://www.mdpi.com/1420-3049/28/2/690heterobifunctional moleculesproximity-inducing chimerastargeted protein modificationconditional protein degradation
spellingShingle Pascal Heitel
Emerging TACnology: Heterobifunctional Small Molecule Inducers of Targeted Posttranslational Protein Modifications
Molecules
heterobifunctional molecules
proximity-inducing chimeras
targeted protein modification
conditional protein degradation
title Emerging TACnology: Heterobifunctional Small Molecule Inducers of Targeted Posttranslational Protein Modifications
title_full Emerging TACnology: Heterobifunctional Small Molecule Inducers of Targeted Posttranslational Protein Modifications
title_fullStr Emerging TACnology: Heterobifunctional Small Molecule Inducers of Targeted Posttranslational Protein Modifications
title_full_unstemmed Emerging TACnology: Heterobifunctional Small Molecule Inducers of Targeted Posttranslational Protein Modifications
title_short Emerging TACnology: Heterobifunctional Small Molecule Inducers of Targeted Posttranslational Protein Modifications
title_sort emerging tacnology heterobifunctional small molecule inducers of targeted posttranslational protein modifications
topic heterobifunctional molecules
proximity-inducing chimeras
targeted protein modification
conditional protein degradation
url https://www.mdpi.com/1420-3049/28/2/690
work_keys_str_mv AT pascalheitel emergingtacnologyheterobifunctionalsmallmoleculeinducersoftargetedposttranslationalproteinmodifications