http://togogenome.org/gene/2600177:FRD01_RS05750                                                                                  ^@                                                                                  http://purl.uniprot.org/uniprot/A0A5B8XRV5                                                                                  ^@                                                                                  Function                                                                                  ^@                                                                                  Mediates the mercuric-dependent induction of mercury resistance operon. In the absence of mercury MerR represses transcription by binding tightly to the mer operator region; when mercury is present the dimeric complex binds a single ion and becomes a potent transcriptional activator, while remaining bound to the mer site.