Dae Gyu Kim, Minkyoung Kim, Ja-il Goo, Jiwon Kong, Dipesh S. Harmalkar, Qili Lu, Aneesh Sivaraman, Hossam Nada, Sreenivasulu Godesi, Hwayoung Lee, Mo Eun Song, Eunjoo Song, Kang-Hyun Han, Woojin Kim, Pilhan Kim, Won Jun Choi, Chang Hoon Lee, Sunkyung Lee, Yongseok Choi, Sunghoon Kim, Kyeong Lee
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Chemical induction of the interaction between AIMP2-DX2 and Siah1 to enhance ubiquitination
AIMP2-DX2 (hereafter DX2) is an oncogenic variant of aminoacyl-tRNA synthetase-interacting multifunctional protein 2 (AIMP2) that mediates tumorigenic interactions with various factors involved in cancer. Reducing the levels of DX2 can effectively inhibit tumorigenesis. We previously reported that DX2 can be degraded through Siah1-mediated ubiquitination. In this study, we identified a compound, SDL01, which enhanced the interaction between DX2 and Siah1, thereby facilitating the ubiquitin-dependent degradation of DX2. SDL01 was found to bind to the pocket surrounding the N-terminal flexible region and GST domain of DX2, causing a conformational change that stabilized its interaction with Siah1. Our findings demonstrate that protein-protein interactions (PPIs) can be modulated through chemically induced conformational changes.
Cell Chemical BiologyBiochemistry, Genetics and Molecular Biology-Molecular Medicine
CiteScore
14.70
自引率
2.30%
发文量
143
期刊介绍:
Cell Chemical Biology, a Cell Press journal established in 1994 as Chemistry & Biology, focuses on publishing crucial advances in chemical biology research with broad appeal to our diverse community, spanning basic scientists to clinicians. Pioneering investigations at the chemistry-biology interface, the journal fosters collaboration between these disciplines. We encourage submissions providing significant conceptual advancements of broad interest across chemical, biological, clinical, and related fields. Particularly sought are articles utilizing chemical tools to perturb, visualize, and measure biological systems, offering unique insights into molecular mechanisms, disease biology, and therapeutics.