Download MendeleyStructural basis for substrate and antibiotic recognition by Helicobacter pylori isoleucyl-tRNA synthetase.
Chen, X., Guo, Y., Shi, J., Wang, Y., Guo, X., Wu, G., Li, S., Zhang, T.(2024) FEBS Lett 598: 521-536
- PubMed: 38246751
- DOI: https://doi.org/10.1002/1873-3468.14805
- Primary Citation of Related Structures:
8WNF, 8WNG, 8WNI, 8WNJ, 8WO2, 8WO3 - PubMed Abstract:
Helicobacter pylori infection is a global health concern, affecting over half of the world's population. Acquiring structural information on pharmacological targets is crucial to facilitate inhibitor design. Here, we have determined the crystal structures of H. pylori isoleucyl-tRNA synthetase (HpIleRS) in apo form as well as in complex with various substrates (Ile, Ile-AMP, Val, and Val-AMP) or an inhibitor (mupirocin). Our results provide valuable insights into substrate specificity, recognition, and the mechanism by which HpIleRS is inhibited by an antibiotic. Moreover, we identified Asp641 as a prospective regulatory site and conducted biochemical analyses to investigate its regulatory mechanism. The detailed structural information acquired from this research holds promise for the development of highly selective and effective inhibitors against H. pylori infection.
Organizational Affiliation:
Institute of Geriatrics, Affiliated Nantong Hospital of Shanghai University, Sixth People's Hospital of Nantong, Shanghai Engineering Research Center of Organ Repair, School of Medicine, Shanghai University, 500 Yonghe Road, Nantong, China.
