Abstract
Retinoid X receptors (RXRs) are transcription factors that traditionally have been thought to bind DNA as protein dimers. Recently, however, it has been recognized that RXRs can also bind to DNA as protein tetramers. Receptor tetramers form cooperatively on response elements containing suitably reiterated half-sites, and play an important role in determining the specificity of DNA recognition by different nuclear receptors. We report here that RXR tetramers exhibit significant functional plasticity, and form on response elements possessing diverse half-site orientations and spacings. This ability of RXRs to form tetramers and related oligomers appears to contribute to the synergistic transcriptional activation observed when multiple, spatially separated response elements are introduced into a single promoter. Oligomerization may therefore be a common paradigm for DNA recognition and combinatorial regulation by several different classes of transcription factors.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 9860-9867 |
| Number of pages | 8 |
| Journal | Journal of Biological Chemistry |
| Volume | 272 |
| Issue number | 15 |
| DOIs | |
| State | Published - Apr 11 1997 |
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ASJC Scopus subject areas
- Biochemistry
Cite this
Plasticity of tetramer formation by retinoid X receptors. An alternative paradigm for DNA recognition. / Lin, Benjamin C.; Wong, Chi Wai; Chen, Hongwu; Privalsky, Martin L.
In: Journal of Biological Chemistry, Vol. 272, No. 15, 11.04.1997, p. 9860-9867.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Plasticity of tetramer formation by retinoid X receptors. An alternative paradigm for DNA recognition
AU - Lin, Benjamin C.
AU - Wong, Chi Wai
AU - Chen, Hongwu
AU - Privalsky, Martin L.
PY - 1997/4/11
Y1 - 1997/4/11
N2 - Retinoid X receptors (RXRs) are transcription factors that traditionally have been thought to bind DNA as protein dimers. Recently, however, it has been recognized that RXRs can also bind to DNA as protein tetramers. Receptor tetramers form cooperatively on response elements containing suitably reiterated half-sites, and play an important role in determining the specificity of DNA recognition by different nuclear receptors. We report here that RXR tetramers exhibit significant functional plasticity, and form on response elements possessing diverse half-site orientations and spacings. This ability of RXRs to form tetramers and related oligomers appears to contribute to the synergistic transcriptional activation observed when multiple, spatially separated response elements are introduced into a single promoter. Oligomerization may therefore be a common paradigm for DNA recognition and combinatorial regulation by several different classes of transcription factors.
AB - Retinoid X receptors (RXRs) are transcription factors that traditionally have been thought to bind DNA as protein dimers. Recently, however, it has been recognized that RXRs can also bind to DNA as protein tetramers. Receptor tetramers form cooperatively on response elements containing suitably reiterated half-sites, and play an important role in determining the specificity of DNA recognition by different nuclear receptors. We report here that RXR tetramers exhibit significant functional plasticity, and form on response elements possessing diverse half-site orientations and spacings. This ability of RXRs to form tetramers and related oligomers appears to contribute to the synergistic transcriptional activation observed when multiple, spatially separated response elements are introduced into a single promoter. Oligomerization may therefore be a common paradigm for DNA recognition and combinatorial regulation by several different classes of transcription factors.
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U2 - 10.1074/jbc.272.15.9860
DO - 10.1074/jbc.272.15.9860
M3 - Article
VL - 272
SP - 9860
EP - 9867
JO - Journal of Biological Chemistry
JF - Journal of Biological Chemistry
SN - 0021-9258
IS - 15
ER -