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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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The thyroid hormone receptor binds with opposite transcriptional effects to a common sequence motif in thyroid hormone and estrogen response elements.

We report that the thyroid hormone (T3) receptor binds to DNA recognition sequences that are variations of the palindromic motif 5'-TCAGGTCA.TGACCTGA-3', resulting in transcriptional activation in vivo. This sequence is identical to the vitellogenin A2 estrogen response element except for the absence of 3 bp at the center of dyad symmetry, which we have termed a "gap." The T3 receptor binds to estrogen response elements with high affinity in vitro, as well as to variations of the same sequence containing gaps of 1-6 bp. The T3 receptor not only fails to activate transcription from estrogen response elements in vivo, but inhibits estrogen-dependent transactivation. We propose that the T3 receptor binds to estrogen response elements in a transcriptionally inactive form and competes for estrogen receptor binding, resulting in a net decrease in gene expression. These data reveal that only a subset of T3 receptor DNA-binding elements function as T3 response elements.[1]

References

  1. The thyroid hormone receptor binds with opposite transcriptional effects to a common sequence motif in thyroid hormone and estrogen response elements. Glass, C.K., Holloway, J.M., Devary, O.V., Rosenfeld, M.G. Cell (1988) [Pubmed]
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