Download MendeleyIdentification and mechanistic analysis of an inhibitor of the CorC Mg 2+ transporter.
Huang, Y., Mu, K., Teng, X., Zhao, Y., Funato, Y., Miki, H., Zhu, W., Xu, Z., Hattori, M.(2021) iScience 24: 102370-102370
- PubMed: 33912817
- DOI: https://doi.org/10.1016/j.isci.2021.102370
- Primary Citation of Related Structures:
7CFK - PubMed Abstract:
The CorC/CNNM family of Na + -dependent Mg 2+ transporters is ubiquitously conserved from bacteria to humans. CorC, the bacterial CorC/CNNM family of proteins, is involved in resistance to antibiotic exposure and in the survival of pathogenic microorganisms in their host environment. The CorC/CNNM family proteins possess a cytoplasmic region containing the regulatory ATP-binding site. CorC and CNNM have attracted interest as therapeutic targets, whereas inhibitors targeting the ATP-binding site have not been identified. Here, we performed a virtual screening of CorC by targeting its ATP-binding site, identified a compound named IGN95a with inhibitory effects on ATP binding and Mg 2+ export, and determined the cytoplasmic domain structure in complex with IGN95a. Furthermore, a chemical cross-linking experiment indicated that with ATP bound to the cytoplasmic domain, the conformational equilibrium of CorC was shifted more toward the inward-facing state of the transmembrane domain. In contrast, IGN95a did not induce such a shift.
- State Key Laboratory of Genetic Engineering, Collaborative Innovation Center of Genetics and Development, Shanghai Key Laboratory of Bioactive Small Molecules, Department of Physiology and Biophysics, School of Life Sciences, Fudan University, 2005 Songhu Road, Yangpu District, Shanghai 200438, China.
Organizational Affiliation:
