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The genome of Sinorhizobium meliloti, a model for studying plant‐bacteria symbiosis, contains eight genes coding for LuxR‐like proteins. Two of these, SinR and ExpR, are essential for quorum sensing (QS). Roles and regulation surrounding the others are mostly unknown. Here, we reveal the DNA recognition sequence and regulon of the LuxR‐like protein SMc00877. Unlike ExpR, which uses the long‐chain...
Diguanylate cyclases synthesize the second messenger c-di-GMP, which in turn governs a plethora of physiological processes in bacteria. Although most diguanylate cyclases harbor sensory domains, their input signals are largely unknown. Here, we demonstrate that diguanylate cyclase DgcZ (YdeH) from Escherichia coli is regulated allosterically by zinc. Crystal structures show that the zinc ion is bound...
Resveratrol (RV), a polyphenolic natural product present in many plants and fruits, exhibits anti-inflammatory, cardio-protective and anti-proliferative properties. Moreover, RV affects a wide variety of viruses including members of the Herpesviridae family, retroviruses, influenza A virus and polyomavirus by altering cellular pathways that affect viral replication itself. Epstein Barr Virus (EBV),...
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