Download MendeleyCrystal structure of the single-stranded RNA binding protein HutP from Geobacillus thermodenitrificans
Thiruselvam, V., Sivaraman, P., Kumarevel, T., Ponnuswamy, M.N.(2014) Biochem Biophys Res Commun 446: 945-951
- PubMed: 24650662
- DOI: https://doi.org/10.1016/j.bbrc.2014.03.036
- Primary Citation of Related Structures:
4OK9, 4OKQ - PubMed Abstract:
RNA binding proteins control gene expression by the attenuation/antitermination mechanism. HutP is an RNA binding antitermination protein. It regulates the expression of hut operon when it binds with RNA by modulating the secondary structure of single-stranded hut mRNA. HutP necessitates the presence of l-histidine and divalent metal ion to bind with RNA. Herein, we report the crystal structures of ternary complex (HutP-l-histidine-Mg(2+)) and EDTA (0.5 M) treated ternary complex (HutP-l-histidine-Mg(2+)), solved at 1.9 Å and 2.5 Å resolutions, respectively, from Geobacillus thermodenitrificans. The addition of 0.5 M EDTA does not affect the overall metal-ion mediated ternary complex structure and however, the metal ions at the non-specific binding sites are chelated, as evidenced from the results of structural features.
Organizational Affiliation:
Centre of Advanced Study in Crystallography and Biophysics, University of Madras, Guindy Campus, Chennai 600 025, India.
