Koroleva ON, Volkov EM, Drutsa VL. Interaction of Escherichia coli RNA polymerase with artificial promoters, containing nonnucleotide spacers.
NUCLEOSIDES NUCLEOTIDES & NUCLEIC ACIDS 2011;
30:667-79. [PMID:
21888555 DOI:
10.1080/15257770.2011.598490]
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Abstract
To study the functional role of the spacer region between two consensus -10 and -35 elements of promoters, recognized by E. coli RNA polymerase, the model promoter-like DNA duplexes containing nonnucleotide inserts (mimicking 17-mer spacer) either in one or both strands, were constructed. The modified duplexes can form the heparin-resistant binary complexes with RNA polymerase. The DNA duplex with nonnucleotide insert in the template strand can specifically direct the synthesis of mRNA in the in vitro run-off transcription assays.
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