Prokaryotic transcriptional enhancers and enhancer-binding proteins.
A number of prokaryotic enhancer-binding proteins activate transcription by specialized forms of RNA polymerase. The enhancer-binding proteins catalyse isomerization of the initial complex formed between RNA polymerase and a promoter from the closed to the open state. To do so, one class of enhancer-binding proteins contacts its cognate polymerase by DNA loop formation but the other, which is represented by a single member, does not. Despite this difference, both classes of enhancer-binding proteins must hydrolyse ATP to catalyse open complex formation.
Kustu
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Department of Plant Pathology, University of California, Berkeley 94720.
North
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Weiss
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D000595:Amino Acid Sequence; D001419:Bacteria / Q000235:genetics*; D004268:DNA-Binding Proteins / Q000235:genetics*; D004742:Enhancer Elements, Genetic; D008969:Molecular Sequence Data; D014157:Transcription Factors
D004268:DNA-Binding Proteins; D014157:Transcription Factors