A small-molecule VHL molecular glue degrader for cysteine dioxygenase 1.
Tutter, A., Buckley, D., Golosov, A.A., Ma, X., Shu, W., McKay, D.J.J., Darsigny, V., Dovala, D., Beckwith, R., Solomon, J., Rao, P., Xu, L., Fazal, A., Lingel, A., Wartchow, C., Cobb, J.S., Hachey, A., Tullai, J., Michaud, G.A.(2025) Nat Chem Biol 
- PubMed: 40555806 
- DOI: https://doi.org/10.1038/s41589-025-01936-x
- Primary Citation of Related Structures:  
8VL9, 8VLB - PubMed Abstract: 
The von Hippel-Lindau tumor suppressor gene product (pVHL) is an E3 ligase substrate receptor that binds proline-hydroxylated hypoxia-inducible factor HIF1α, leading to its ubiquitin-dependent degradation. By using protein arrays, we identified a small molecule that binds the HIF1α-binding pocket on pVHL and functions as a molecular glue degrader of the neosubstrate cysteine dioxygenase (CDO1) by recruiting it into the VHL-Cullin-RING E3 ligase complex and leading to its selective degradation. The CDO1-binding region involved in VHL recruitment was characterized through a combination of mutagenesis and protein-protein docking coupled with molecular-dynamics-based solvation analysis. The X-ray structure of the ternary complexes of VHL, CDO1 and degrader molecules confirms the binding region prediction and provides atomic insights into key molecular glue interactions.
- Discovery Sciences, Novartis Biomedical Research, Cambridge, MA, USA.
Organizational Affiliation: