The DNA site bound by the activator is referred to as an "activator-binding site". Most activators are DNA-binding proteins that bind to enhancers or promoter-proximal elements. Activators are considered to have positive control over gene expression, as they function to promote gene transcription and, in some cases, are required for the transcription of genes to occur. ![]() ![]() ![]() A transcriptional activator is a protein ( transcription factor) that increases transcription of a gene or set of genes.
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