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Omega Transcriptional Repressor
The omega transcriptional repressor regulates expression of involved in copy number control and stable maintenance of plasmids. The omega protein belongs to the structural superfamily of MetJ/Arc repressors featuring a ribbon-helix-helix DNA-binding motif with the beta-ribbon located in and recognising the major groove of operator DNA [1]. [1]. 11733997. Crystal structure of omega transcriptional repressor encoded by. Streptococcus pyogenes plasmid pSM19035 at 1.5 A resolution.. Murayama K, Orth P, de la Hoz AB, Alonso JC, Saenger W;. J Mol Biol 2001;314:789-796. (from Pfam)
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