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Helix-Turn-Helix DNA binding domain of the YfmP transcription regulator Helix-turn-helix (HTH) transcription regulator, YfmP, and related proteins; N-terminal domain. YfmP regulates the multidrug efflux protein, YfmO, and indirectly regulates the expression of the Bacillus subtilis copZA operon encoding a metallochaperone, CopZ, and a CPx-type ATPase efflux protein, CopA. These proteins belong to the MerR superfamily of transcription regulators that promote expression of several stress regulon genes by reconfiguring the spacer between the -35 and -10 promoter elements. Their conserved N-terminal domains contain predicted winged HTH motifs that mediate DNA binding, while the dissimilar C-terminal domains bind specific coactivator molecules. |
Jiyao W et al.(2023). "The conserved domain database in 2023.",