Studies on Clostridium acetobutylicum glnA promoters and antisense RNA.
The Clostridium acetobutylicum glnA gene has two transcript start sites under the control of promoters p1 and p2. Initiation of transcription was regulated by nitrogen and a downstream region was implicated in the regulation of transcript initiation by nitrogen in Escherichia coli. Putative antisense RNA was produced from a single downstream transcript start site under the control of p3. An up-promoter mutation in p3 resulted in lower levels of glutamine synthetase (GS) activity. Putative antisense RNA had a role in down-regulating GS expression but was not involved in regulation by nitrogen. Deletion of downstream inverted repeat sequences resulted in very low levels of GS activity.[1]References
- Studies on Clostridium acetobutylicum glnA promoters and antisense RNA. Janssen, P.J., Jones, D.T., Woods, D.R. Mol. Microbiol. (1990) [Pubmed]
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