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Promoter activity of the P-RM and P-R promoters vs RNA polymerase concentration in the enterobacteriophage lambda [1]. Promoter activity is a term that encompasses several meanings around the process of gene expression from regulatory sequences —promoters [2] and enhancers. [3]
Promoters are located near the transcription start sites of genes, upstream on the DNA (towards the 5' region of the sense strand). Promoters can be about 100–1000 base pairs long, the sequence of which is highly dependent on the gene and product of transcription, type or class of RNA polymerase recruited to the site, and species of organism ...
The Inr element for core promoters was found to be more prevalent than the TATA box in eukaryotic promoter domains. [9] In a study of 1800+ distinct human promoter sequences it was found that 49% contain the Inr element while 21.8% contain the TATA box. [9] Out of those sequences with the TATA box, 62% contained the Inr element as well.
In eukaryotes, the 5′ flanking region has a complex set of regulatory elements such as enhancers, silencers, and promoters. The primary promoter element in eukaryotes is the TATA box. Other promoter elements found in eukaryotic 5′ flanking regions include initiator elements, downstream core promoter element, CAAT box, and the GC box. [1]
5-HTTLPR (serotonin-transporter-linked promoter region) is a degenerate repeat (redundancy in the genetic code) polymorphic region in SLC6A4, the gene that codes for the serotonin transporter. Since the polymorphism was identified in the middle of the 1990s, [ 1 ] [ 2 ] it has been extensively investigated, e.g., in connection with ...
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For example, an overactive distal promoter located about 1 kilobase away from the MUC5B gene contributes to atypical expression of this gene in gastric cancer cells. [4] Similarly, a few polymorphisms in the RUNX3 distal promoter alter the promoter's function, increasing the activity of the NF-κB transcription factor and the expression of the ...
The New Year -- and the entire month of January -- is often the busiest time at the gym. This increase is largely driven by New Year's resolutions as more people set fitness and health goals. Read...