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Previously, the transfer of the phosphoryl group between the EnvZ and OmpR proteins, which are involved in activation of the ompF and ompC genes in response to the medium osmolarity, has been demonstrated in vitro. In this study, we characterized mutant EnvZ and OmpR proteins in terms of their in vitro phosphorylation and dephosphorylation. The proteins(More)
The Escherichia coli OmpR protein is an activator protein specific for the ompF and ompC genes, which respectively encode the outer membrane proteins, OmpF and OmpC. The EnvZ protein is a protein kinase specific for the OmpR protein. In this study, we compared the in vitro DNA-binding ability of the phosphorylated form of the OmpR protein with that of the(More)
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