期刊
NATURAL PRODUCT REPORTS
卷 27, 期 5, 页码 658-667出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/b906683g
关键词
-
资金
- National Science Foundation [MCB-0520877]
Metalloregulator function requires both sensitivity and selectivity to ensure metal-specific activity without interfering with intracellular metal trafficking pathways. Here, we examine the role of metal-coordination geometry in the function of NikR and RcnR, two widely conserved nickel-responsive regulators that are both present in E. coli. The available data suggest an emerging trend in which coordination number is linked to metal-binding affinity, and thus regulatory function. The differences in coordination geometry also suggest that the kinetic mechanisms of metal-association and dissociation will contribute to metalloregulator function. We also discuss ways in which the ligand-binding properties of metalloregulators may be tuned to alter the regulatory response.
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