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. 1988 Jan 11;16(1):151-63.
doi: 10.1093/nar/16.1.151.

An archaebacterial promoter element for stable RNA genes with homology to the TATA box of higher eukaryotes

M Thomm  1 , G Wich
Affiliations
Free PMC article

An archaebacterial promoter element for stable RNA genes with homology to the TATA box of higher eukaryotes

M Thomm et al. Nucleic Acids Res. .
Free PMC article

Abstract

The RNA polymerase of Methanococcus vannielii, in binary complex with two stable RNA operons, protects from exonuclease digestion the region from 32 bp upstream (-32) to 18 bp downstream (+18) of the transcription start site. Contained within this binding region, centered at -25, is an AT-rich sequence which is highly conserved upstream of 26 other archaebacterial tRNA and rRNA genes. We therefore propose the sequence TTTATAATA as a common element of promoters for stable RNA genes in archaebacteria. Both the similarity in sequence and the location of this conserved octanucleotide suggest homology to the eukaryotic TATA box preceding protein encoding genes transcribed by RNA polymerase B.

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References

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