National Institutes of Health/National Cancer Institute (NIH/NCI)
R01CA214608
米国
引用
ジャーナル: bioRxiv / 年: 2025 タイトル: High-throughput diversification of protein-ligand surfaces to discover chemical inducers of proximity. 著者: James B Shaum / Miquel Muñoz I Ordoño / Erica A Steen / Daniela V Wenge / Hakyung Cheong / Moritz Hunkeler / Eric M Bilotta / Zoe Rutter / Paige A Barta / Abby M Thornhill / Natalia ...著者: James B Shaum / Miquel Muñoz I Ordoño / Erica A Steen / Daniela V Wenge / Hakyung Cheong / Moritz Hunkeler / Eric M Bilotta / Zoe Rutter / Paige A Barta / Abby M Thornhill / Natalia Milosevich / Lauren M Hargis / Jordan Janowski / Timothy R Bishop / Trever R Carter / Bryce da Camara / Matthias Hinterndorfer / Lucas Dada / Wen-Ji He / Fabian Offensperger / Hirotake Furihata / Sydney R Schweber / Charlie Hatton / Yanhe Wen / Benjamin F Cravatt / Keary M Engle / Katherine A Donovan / Bruno Melillo / Seiya Kitamura / Alessio Ciulli / Scott A Armstrong / Eric S Fischer / Georg E Winter / Michael A Erb 要旨: Chemical inducers of proximity (CIPs) stabilize biomolecular interactions, often causing an emergent rewiring of cellular biochemistry. While rational design strategies can expedite the discovery of ...Chemical inducers of proximity (CIPs) stabilize biomolecular interactions, often causing an emergent rewiring of cellular biochemistry. While rational design strategies can expedite the discovery of heterobifunctional CIPs, monovalent, molecular glue-like CIPs have relied predominantly on serendipity. Envisioning a prospective approach to discover molecular glues for a pre-selected target, we hypothesized that pre-existing ligands could be systematically decorated with chemical modifications to empirically discover protein-ligand surfaces that are tuned to cooperatively engage another protein interface. Here, we used sulfur(VI)-fluoride exchange (SuFEx)-based high-throughput chemistry (HTC) to install 3,163 structurally diverse chemical building blocks onto ENL and BRD4 ligands and then screened the crude products for degrader activity. This revealed dHTC1, a potent, selective, and stereochemistry-dependent degrader of ENL. It recruits CRL4 to ENL through an extended interface of protein-protein and protein-ligand contacts, but only after pre-forming the ENL:dHTC1 complex. We also characterized two structurally distinct BRD4 degraders, including dHTC3, a molecular glue that selectively dimerizes the first bromodomain of BRD4 to SCF , an E3 ligase not previously accessible for chemical rewiring. Altogether, this study introduces HTC as a facile tool to discover new CIPs and actionable cellular effectors of proximity pharmacology.
凍結剤: ETHANE / チャンバー内湿度: 90 % / チャンバー内温度: 283 K / 装置: LEICA EM GP 詳細: Grids were vitrified using a Leica EM GP plunge freezer operated at 90% humidity and 10 C. Grids were first pre-incubated with 4 uL of 10 uM CRBN-agnostic IKZF1_140-196_Q146A,G151N for 1 ...詳細: Grids were vitrified using a Leica EM GP plunge freezer operated at 90% humidity and 10 C. Grids were first pre-incubated with 4 uL of 10 uM CRBN-agnostic IKZF1_140-196_Q146A,G151N for 1 minute and then blotted from behind for 4 s. Immediately, 4 uL of mixturewas applied to the grids before blotting for 4 s and plunging into liquid ethane at -181 C.
詳細
Particles from two grids were merged for this data set. The grids differed in protein concentration. Grid1: DDB1dB/CRBN:dHTC1:ENL YEATS of 1.4, 14, 2.8 uM Grid2: DDB1dB/CRBN:dHTC1:ENL YEATS of 1.6, 16, 3.2 uM