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Topic: TATA box


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In the News (Fri 25 Dec 09)

  
  TATA box - Free net encyclopedia   (Site not responding. Last check: 2007-10-30)
A TATA box (also called Hogness Box) is a DNA sequence (cis-element) found in the promoter region of most genes (it is considered to be a promoter sequence).
In eukaryotes, it is normally bound by the TATA Binding Protein (TBP) in the process of transcription, which melts the DNA, and bends it through 90°.
The TATA box is essential for the binding of RNA polymerase in prokaryotes, and is usually found as the binding site of RNA polymerase II in eukaryotes.
www.netipedia.com /index.php/TATA_box   (374 words)

  
 Learn more about Transcription in the online encyclopedia.   (Site not responding. Last check: 2007-10-30)
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Additionally, there can be an upstream control element present at the -180 to -107 region, which can amplify the RNAP binding by a factor of up to 100.
A similar sequence, thus not that highly conserved, is found in the INR element (initiator element, part of the complex core promoter).
www.onlineencyclopedia.org /t/tr/transcription.html   (571 words)

  
 Pharmaceutical Sequences, DNA & beyond glossary
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The two most found are the CCAAT box (called the CAT box) and the GC box.
Highly conserved sequences within the promoter include the Pribnow box in bacteria and the TATA BOX in eukaryotes.
www.genomicglossaries.com /content/sequencing_dna_beyond_gloss.asp   (4617 words)

  
 ISIS News no.3 index
A strong artificial promoter has now been found that is hyperactive, regionally restricted and universal.
It contains three binding sites for Pax-6 homodimers in front of a TATA box (3xP3), and has been shown to drive expression of an enhanced GFP variant in the eye of fruitfly and in flour beetle.
The evolutionary conservation of Pax-6 in the eye development of insects and vertebrates means that the 3xP3 promoter may be active in any photoreceptor cell.
www.i-sis.org.uk /isisnews/i-sisnews3.php   (8667 words)

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