Unveiling the hidden interactome of CRBN molecular glues

Induced proximity by molecular glues refers to strategies that leverage the recruitment of proteins to facilitate their modification, regulation or degradation. As prospective design of molecular glues remains challenging, unbiased discovery methods are necessary to discover new chemical targets. He...

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Vydáno v:	Nature communications Ročník 16; číslo 1; s. 6831 - 18
Hlavní autoři:	Baek, Kheewoong, Metivier, Rebecca J., Roy Burman, Shourya S., Bushman, Jonathan W., Yoon, Hojong, Lumpkin, Ryan J., Ryan, Julia K., Abeja, Dinah M., Lakshminarayan, Megha, Yue, Hong, Ojeda, Samuel, Xiong, Yuan, Che, Jianwei, Verano, Alyssa L., Schmoker, Anna M., Gray, Nathanael S., Donovan, Katherine A., Fischer, Eric S.
Médium:	Journal Article
Jazyk:	angličtina
Vydáno:	London Nature Publishing Group UK 24.07.2025 Nature Publishing Group Nature Portfolio
Témata:	101/28 13 13/1 13/106 49/56 631/45/475/2290 631/92/507 82/16 82/47 82/58 82/80 82/83 Adaptor Proteins, Signal Transducing - genetics Adaptor Proteins, Signal Transducing - metabolism Adhesives Biochemistry Computer applications Degradation Glues HEK293 Cells Humanities and Social Sciences Humans Identification Kinases Lead compounds Lysates multidisciplinary Peptide mapping Protein Binding Protein interaction Proteins Proteomics Proteomics - methods Science Science (multidisciplinary) Ubiquitin-protein ligase Ubiquitin-Protein Ligases - genetics Ubiquitin-Protein Ligases - metabolism Workflow Zinc finger proteins
ISSN:	2041-1723, 2041-1723
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Shrnutí:	Induced proximity by molecular glues refers to strategies that leverage the recruitment of proteins to facilitate their modification, regulation or degradation. As prospective design of molecular glues remains challenging, unbiased discovery methods are necessary to discover new chemical targets. Here we establish a high throughput affinity proteomics workflow leveraging E3 ligase activity-impaired CRBN-DDB1ΔB in cell lysates for the unbiased identification of molecular glue targets. By mapping the interaction landscape of CRBN-binding molecular glues, we unveil 298 protein targets and demonstrate the utility of enrichment methods for identifying targets overlooked by established methods. We use a computational workflow to estimate target confidence and perform biochemical and structural validation of uncharacterized neo-substrates. We further identify a lead compound for the previously untargeted non-zinc finger PPIL4 through a biochemical screen. Our study provides a comprehensive inventory of targets chemically recruited to CRBN and delivers a robust and scalable workflow for identifying drug-induced protein interactions in cell lysates. Induced proximity by molecular glues is a strategy that leverages the recruitment of proteins to facilitate their modification or degradation. Here the authors present unbiased quantitative proteomic, biochemical and computational workflows that uncover hundreds of CRBN molecular glue targets using recombinant protein and cell lysate.
Bibliografie:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 content type line 23
ISSN:	2041-1723 2041-1723
DOI:	10.1038/s41467-025-62099-w