Download MendeleyCrystal Structure of the Metallo-Endoribonuclease YbeY from Staphylococcus aureus.
Lee, J., Jo, I., Kwon, A.R., Ha, N.C.(2023) J Microbiol Biotechnol 33: 28-34
- PubMed: 36457189
- DOI: https://doi.org/10.4014/jmb.2209.09019
- Primary Citation of Related Structures:
7Y7O - PubMed Abstract:
Endoribonuclease YbeY is specific to the single-stranded RNA of ribosomal RNAs and small RNAs. This enzyme is essential for the maturation and quality control of ribosomal RNA in a wide range of bacteria and for virulence in some pathogenic bacteria. In this study, we determined the crystal structure of YbeY from Staphylococcus aureus at a resolution of 1.9 Å in the presence of zinc chloride. The structure showed a zinc ion at the active site and two molecules of tricarboxylic acid citrate, which were also derived from the crystallization conditions. Our structure showed the zinc ion-bound local environment at the molecular level for the first time. Molecular comparisons were performed between the carboxylic moieties of citrate and the phosphate moiety of the RNA backbone, and a model of YbeY in complex with a single strand of RNA was subsequently constructed. Our findings provide molecular insights into how the YbeY enzyme recognizes single-stranded RNA in bacteria.
Organizational Affiliation:
Research Institute of Agriculture and Life Sciences, Center for Food and Bioconvergence, Department of Agricultural Biotechnology, CALS, Seoul National University, Seoul 08826, Republic of Korea.
