| Autor: |
Filipuzzi, Ireos, Thomas, Jason Ray, Pries, Verena, Estoppey, David, Salcius, Michael, Studer, Christian, Schirle, Markus, Hoepfner, Dominic |
| Zdroj: |
ACS Chemical Biology; 20240101, Issue: Preprints |
| Abstrakt: |
The microbial metabolite Chivosazole F has been described to affect the cytoskeleton and to inhibit actin polymerization in vitro. Applying orthogonal genomic and proteomics approaches, we now show for the first time that Chivosazole F exerts its effect by directly interacting with actin and demonstrate the cellular impact of Chivosazole F in an unbiased, genome-wide context in yeast and in mammalian cells. Furthermore, mutation-based resistance mapping identifies two SNPs located in the putative Chivosazole F binding site of actin. Comparing chemogenomic profiles and responses to the Chivosazole F-resistant SNPs shows a partially conserved mechanism of action for Chivosazole F and Latrunculin A, but clear divergence from Chondramide. In addition, C14orf80 is an evolutionarily highly conserved ORF, lacking any functional annotation. As editing of C14orf80 leads to Chivosazole F hyper-resistance, we propose a function for this gene product in counteracting perturbation of actin filaments. |
| Databáze: |
Supplemental Index |
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