Words similar to dmsabc
Example sentences for: dmsabc
How can you use “dmsabc” in a sentence? Here are some example sentences to help you improve your vocabulary:
In this study, the control of dmsABC gene expression by Fnr and NarL was investigated.
5 bp from the dmsABC P1 promoter as also established by DNase I footprinting analyses [ 7 8 ] . The presence of nitrate, a preferred alternative electron acceptor, elicits a 10-fold repression of dmsABC expression via the NarXLQP two-component regulatory system [ 4 9 10 ] . Nitrate is detected by either of the two sensor-transmitter proteins, NarX or NarQ, which then activate the DNA binding response-regulatory protein NarL, by phosphorylating an aspartate residue located at position 59.
Mutagenesis of the Fnr recognition sequence at the dmsA promoter region confirmed the contribution of Fnr in the 100-fold activation of dmsABC expression and explored the DNA sequence and spacing requirements for the Fnr recognition site at the P1 promoter.
The enhanced ability of Fnr to activate dmsABC gene expression is possibly, by analogy to Crp, due to increased affinity of Fnr at the consensus versus the native non-consensus Fnr recognition sequence at dmsA . Likewise, the poor match of the Fnr site at the promoter for the fumarate reductase gene, frdA to the consensus Fnr sequence may account for the relatively weak anaerobic induction for this respiratory operon [ 14 ] .
Furthermore, the spacing between the Fnr and RNA polymerase recognition sequences is critical at dmsA . In vitro interactions of the nitrate-responsive regulatory protein NarL with the promoter region of dmsABC were examined using DNase I and hydroxyl radical footprinting techniques.
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