Abstract
Bacterial cells often use two-component signal transduction systems to regulate genes in response to environmental stimuli. The RstA/RstB system is a two-component regulatory system consisting of the membrane sensor, RstB, and its cognate response regulator RstA. The RstA of Klebsiella pneumoniae consists of a N-terminal receiver domain (NRD, residues 1-119) and a C-terminal DNA-binding domain (DBD, residues 130-236). Phosphorylation of the response regulator induces a conformational change in the regulatory domain of RstA, which results in activation of the effector domain to regulate the downstream genes, including the ferrous iron transport system (Feo), at low-pH condition. Here we report the 1H, 13C and 15N resonance assignments and secondary structure identification of the DBD of RstA from K. pneumoniae as a first step for unraveling the structural and functional relationship of the RstA/RstB two component system.
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Acknowledgments
The NMR spectra were obtained at High-Field Nuclear Magnetic Resonance Center (HF-NMRC) supported by the National Research Program for Genomic Medicine. This work was supported by a grant from the National Science Council of the Republic of China (NSC 100-2311-B-001-023).
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Chen, SC., Chang, CF., Fan, PJ. et al. 1H, 13C and 15N resonance assignments of the C-terminal DNA-binding domain of RstA protein from Klebsiella pneumoniae . Biomol NMR Assign 7, 85–88 (2013). https://doi.org/10.1007/s12104-012-9383-0
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DOI: https://doi.org/10.1007/s12104-012-9383-0