Types | DnaRegion
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Roles | promoter
Regulatory
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Sequences | BBa_K091104_sequence (Version 1)
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Description
This promoter is a modified version of the Mnt promoter that is also responsive to LacI. The promoter should be repressed by Mnt repressor. It should also be repressed by LacI, and in the absence of Mnt repressor, should be induced by IPTG.
Notes
Mnt repressor binds as a tetramer to two half-operator sites. Introduction of a LacI binding site between the Mnt promoter -10 sequence and the start site for transcription should allow for repression by LacI. Accordingly, the hybrid promoter was designed by 1) Remove all bases of mnt promoter 3??? to -10: gagtcgtattaattt will be replaced by tgtgtggaattgtga, and 2) Position lacI binding site (composed of an inverted repeat) from the lacI regulated promoter (R0010) immediately 3??? to truncated mnt promoter.
Source
This part comes from the Mnt promoter and the LacI promoter