Abstract
Heme-based sensors have emerged during the last 20years as being a large family of proteins that occur in all kingdoms of life. A myriad of biological adaptations are associated with these sensors, which include vasodilation, bacterial virulence, dormancy, chemotaxis, biofilm formation, among others. Due to the key activities regulated by these proteins along with many other systems that use similar output domains, there is a growing interest in developing small molecules as their regulators. Here, we review the development of potential activators and inhibitors for many of these systems, including human soluble guanylate cyclase, c-di-GMP-related enzymes, Mycobacterium tuberculosis DevR/DevS/DosT (differentially expressed in virulent strain response regulator/sensor/dormancysurvival sensorT), the Rev-erb-α and β nuclear receptor, among others. The possible roles of these molecules as biochemical tools, therapeutic agents, and novel antibiotics are critically examined.
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