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forespore capture DNA-binding protein RefZ RefZ (regulator of FtsZ), a DNA-binding protein in the family of TetR/AcrR family transcriptional regulators, participates in septum placement and in chromosome capture during the asymmetrical cell division in endospore formation. The five nearly palindromic DNA motifs (RBMs) to which RefZ binds affect chromosomal localization, not transcription, so RefZ is not considered a transcription factor.
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