Types | DnaRegion
|
Roles | RNA
mature_transcript_region
|
Sequences | BBa_K1126007_sequence (Version 1)
|
Description
Fusion6 antisense is the functional RNA which regulates the transcription of downstream gene of Fusion6 attenuator (BBa_K1126004).
In the absence of antisense RNA, secondary structure of Fusion3m2 attenuator locus does not affect transcription. However, when mRNA of this locus is partly coupled complementary with mRNA of Fusion6 antisense, this locus is folded into Rho-independent terminator and terminates the transcription right before the gene. Downstream gene is somewhat silenced by this mechanism (the efficiency is shown to be 44% in Escherichia coli).
This mechanism is originally found in the regulation system of plasmid pT181 in gram negative bacteria Staphylococcus aureus, and Fusion3m2 attenuator is made by arranging the sequence.
Notes
Nothing
Source
Takahashi, M. K., & Lucks, J. B. (2013). A modular strategy for engineering orthogonal chimeric RNA transcription regulators. Nucleic Acids Research.