Transcriptional regulation of the genes encoding cytochromes P450BM-1 and P450BM-3 in Bacillus megaterium by the binding of Bm3R1 repressor to Barbie box elements and operator sites.

@article{Liang1995TranscriptionalRO,
  title={Transcriptional regulation of the genes encoding cytochromes P450BM-1 and P450BM-3 in Bacillus megaterium by the binding of Bm3R1 repressor to Barbie box elements and operator sites.},
  author={Qianwa Liang and Armand J. Fulco},
  journal={The Journal of biological chemistry},
  year={1995},
  volume={270 31},
  pages={18606-14}
}
We previously reported (Liang, Q., He, J.-S., and Fulco, A.J. (1995) J. Biol. Chem. 270, 4438-4450) that Bm3R1, a repressor regulating the expression of P450BM-3 in Bacillus megaterium, could bind to Barbie box sequences in the 5'-flanking regions of barbiturate-inducible genes. We've now shown that pentobarbital does not inhibit in vitro binding of Bm3R1 to the P450BM-3 and P450BM-1 Barbie boxes (BB3 and BB1), although the palindromic operator sequence (OIII) of P450BM-3 did have a strong… CONTINUE READING

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