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Discovery of a Potent Proteolysis Targeting Chimera Enables Targeting the Scaffolding Functions of FK506‐Binding Protein 51 (FKBP51)

Geiger, Thomas M. ; Walz, Michael ; Meyners, Christian ; Kuehn, Angela ; Dreizler, Johannes K. ; Sugiarto, Wisely O. ; Maciel, Edvaldo V. S. ; Zheng, Min ; Lermyte, Frederik ; Hausch, Felix (2024)
Discovery of a Potent Proteolysis Targeting Chimera Enables Targeting the Scaffolding Functions of FK506‐Binding Protein 51 (FKBP51).
In: Angewandte Chemie International Edition, 2024, 63 (3)
doi: 10.26083/tuprints-00027257
Artikel, Zweitveröffentlichung, Verlagsversion

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Kurzbeschreibung (Abstract)

The FK506‐binding protein 51 (FKBP51) is a promising target in a variety of disorders including depression, chronic pain, and obesity. Previous FKBP51‐targeting strategies were restricted to occupation of the FK506‐binding site, which does not affect core functions of FKBP51. Here, we report the discovery of the first FKBP51 proteolysis targeting chimera (PROTAC) that enables degradation of FKBP51 abolishing its scaffolding function. Initial synthesis of 220 FKBP‐focused PROTACs yielded a plethora of active PROTACs for FKBP12, six for FKBP51, and none for FKBP52. Structural analysis of a binary FKBP12:PROTAC complex revealed the molecular basis for negative cooperativity. Linker‐based optimization of first generation FKBP51 PROTACs led to the PROTAC SelDeg51 with improved cellular activity, selectivity, and high cooperativity. The structure of the ternary FKBP51:SelDeg51:VCB complex revealed how SelDeg51 establishes cooperativity by dimerizing FKBP51 and the von Hippel‐Lindau protein (VHL) in a glue‐like fashion. SelDeg51 efficiently depletes FKBP51 and reactivates glucocorticoid receptor (GR)‐signalling, highlighting the enhanced efficacy of full protein degradation compared to classical FKBP51 binding.

Typ des Eintrags: Artikel
Erschienen: 2024
Autor(en): Geiger, Thomas M. ; Walz, Michael ; Meyners, Christian ; Kuehn, Angela ; Dreizler, Johannes K. ; Sugiarto, Wisely O. ; Maciel, Edvaldo V. S. ; Zheng, Min ; Lermyte, Frederik ; Hausch, Felix
Art des Eintrags: Zweitveröffentlichung
Titel: Discovery of a Potent Proteolysis Targeting Chimera Enables Targeting the Scaffolding Functions of FK506‐Binding Protein 51 (FKBP51)
Sprache: Englisch
Publikationsjahr: 21 Mai 2024
Ort: Darmstadt
Publikationsdatum der Erstveröffentlichung: 15 Januar 2024
Ort der Erstveröffentlichung: Weinheim
Verlag: Wiley-VCH
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Angewandte Chemie International Edition
Jahrgang/Volume einer Zeitschrift: 63
(Heft-)Nummer: 3
Kollation: 7 Seiten
DOI: 10.26083/tuprints-00027257
URL / URN: https://tuprints.ulb.tu-darmstadt.de/27257
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Herkunft: Zweitveröffentlichung DeepGreen
Kurzbeschreibung (Abstract):

The FK506‐binding protein 51 (FKBP51) is a promising target in a variety of disorders including depression, chronic pain, and obesity. Previous FKBP51‐targeting strategies were restricted to occupation of the FK506‐binding site, which does not affect core functions of FKBP51. Here, we report the discovery of the first FKBP51 proteolysis targeting chimera (PROTAC) that enables degradation of FKBP51 abolishing its scaffolding function. Initial synthesis of 220 FKBP‐focused PROTACs yielded a plethora of active PROTACs for FKBP12, six for FKBP51, and none for FKBP52. Structural analysis of a binary FKBP12:PROTAC complex revealed the molecular basis for negative cooperativity. Linker‐based optimization of first generation FKBP51 PROTACs led to the PROTAC SelDeg51 with improved cellular activity, selectivity, and high cooperativity. The structure of the ternary FKBP51:SelDeg51:VCB complex revealed how SelDeg51 establishes cooperativity by dimerizing FKBP51 and the von Hippel‐Lindau protein (VHL) in a glue‐like fashion. SelDeg51 efficiently depletes FKBP51 and reactivates glucocorticoid receptor (GR)‐signalling, highlighting the enhanced efficacy of full protein degradation compared to classical FKBP51 binding.

Alternatives oder übersetztes Abstract:
Alternatives AbstractSprache

The FK506-binding site of FK506-binding protein 51 (FKBP51) is chemically tractable but not required for glucocorticoid receptor (GR) repression by FKBP51. The proteolysis targeting chimera SelDeg51 enables degradation of FKBP51, abolishes its scaffolding functions, and reactivates GR signaling.

Englisch
Freie Schlagworte: FKBP, FKBP51, Glucocorticoid Receptor, Proteolysis Targeting Chimeras (PROTACs), Targeted Protein Degradation
ID-Nummer: Artikel-ID: e202309706
Status: Verlagsversion
URN: urn:nbn:de:tuda-tuprints-272575
Sachgruppe der Dewey Dezimalklassifikatin (DDC): 500 Naturwissenschaften und Mathematik > 540 Chemie
500 Naturwissenschaften und Mathematik > 570 Biowissenschaften, Biologie
Fachbereich(e)/-gebiet(e): Interdisziplinäre Forschungsprojekte
Interdisziplinäre Forschungsprojekte > Centre for Synthetic Biology
07 Fachbereich Chemie
07 Fachbereich Chemie > Clemens-Schöpf-Institut > Fachgebiet Biochemie
07 Fachbereich Chemie > Clemens-Schöpf-Institut
Hinterlegungsdatum: 21 Mai 2024 13:35
Letzte Änderung: 22 Mai 2024 05:38
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