泛素连接酶
化学
三元络合物
半胱氨酸
小分子
DNA连接酶
泛素
去酰胺
突变
生物化学
恶唑啉
结合位点
分子动力学
双加氧酶
生物物理学
生物
突变
基因
酶
计算化学
催化作用
作者
Antonin V. Tutter,Dennis L. Buckley,Andrei A. Golosov,Xiaolei Ma,Wei Shu,Daniel J. McKay,Véronique Darsigny,Dustin Dovala,Rohan E. J. Beckwith,Jonathan M. Solomon,Pasupuleti Rao,Lei Xu,Aleem Fazal,Andreas Lingel,Charles Wartchow,Jennifer Cobb,Amanda Hachey,Jennifer Tullai,Gregory A. Michaud
标识
DOI:10.1101/2024.01.25.576086
摘要
Abstract The Von Hippel-Lindau Tumor Suppressor gene product (pVHL) is an E3 ligase substrate receptor that binds proline-hydroxylated HIF1-α, leading to its ubiquitin-dependent degradation. By using protein arrays, we identified a small molecule that binds the HIF1-α 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.
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