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. 1992 Apr;11(4):1419–1435. doi: 10.1002/j.1460-2075.1992.tb05187.x

H-2RIIBP (RXR beta) heterodimerization provides a mechanism for combinatorial diversity in the regulation of retinoic acid and thyroid hormone responsive genes.

M S Marks 1, P L Hallenbeck 1, T Nagata 1, J H Segars 1, E Appella 1, V M Nikodem 1, K Ozato 1
PMCID: PMC556591  PMID: 1314168

Abstract

H-2RIIBP (RXR beta) is a member of the nuclear hormone receptor superfamily that activates transcription of MHC class I genes in response to retinoic acid (RA). Using chemical cross-linking, co-immunoprecipitation, gel mobility shift and streptavidin-biotin DNA precipitation assays, we show that H-2RIIBP formed heterodimers with thyroid hormone (T3) and RA receptors (T3R alpha and RAR alpha). H-2RIIBP heterodimer formation required a conserved sub-domain of its C-terminal region, occurred independently of target DNA and was much more efficient than either T3R alpha/RAR alpha heterodimer or H-2RIIBP homodimer formation. Heterodimers displayed enhanced binding to target DNA elements and contacted DNA in a manner distinct from that of homodimers. A functional role for heterodimers in vivo was demonstrated by synergistic enhancement of MHC class I transcription following co-transfection of H-2RIIBP with T3R alpha or RAR alpha. We provide biochemical evidence that H-2RIIBP formed heterodimers with several naturally occurring nuclear proteins. The results suggest that H-2RIIBP, by virtue of its ability to heterodimerize, enhances combinatorial diversity and versatility in gene regulation mediated by nuclear hormone receptors.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Andrews P. W. Retinoic acid induces neuronal differentiation of a cloned human embryonal carcinoma cell line in vitro. Dev Biol. 1984 Jun;103(2):285–293. doi: 10.1016/0012-1606(84)90316-6. [DOI] [PubMed] [Google Scholar]
  2. Baker A. R., McDonnell D. P., Hughes M., Crisp T. M., Mangelsdorf D. J., Haussler M. R., Pike J. W., Shine J., O'Malley B. W. Cloning and expression of full-length cDNA encoding human vitamin D receptor. Proc Natl Acad Sci U S A. 1988 May;85(10):3294–3298. doi: 10.1073/pnas.85.10.3294. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Baldwin A. S., Jr, Sharp P. A. Binding of a nuclear factor to a regulatory sequence in the promoter of the mouse H-2Kb class I major histocompatibility gene. Mol Cell Biol. 1987 Jan;7(1):305–313. doi: 10.1128/mcb.7.1.305. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Ballard D. W., Walker W. H., Doerre S., Sista P., Molitor J. A., Dixon E. P., Peffer N. J., Hannink M., Greene W. C. The v-rel oncogene encodes a kappa B enhancer binding protein that inhibits NF-kappa B function. Cell. 1990 Nov 16;63(4):803–814. doi: 10.1016/0092-8674(90)90146-6. [DOI] [PubMed] [Google Scholar]
  5. Beato M. Gene regulation by steroid hormones. Cell. 1989 Feb 10;56(3):335–344. doi: 10.1016/0092-8674(89)90237-7. [DOI] [PubMed] [Google Scholar]
  6. Beebe J. S., Darling D. S., Chin W. W. 3,5,3'-triiodothyronine receptor auxiliary protein (TRAP) enhances receptor binding by interactions within the thyroid hormone response element. Mol Endocrinol. 1991 Jan;5(1):85–93. doi: 10.1210/mend-5-1-85. [DOI] [PubMed] [Google Scholar]
  7. Brown M., Sharp P. A. Human estrogen receptor forms multiple protein-DNA complexes. J Biol Chem. 1990 Jul 5;265(19):11238–11243. [PubMed] [Google Scholar]
  8. Burnside J., Darling D. S., Chin W. W. A nuclear factor that enhances binding of thyroid hormone receptors to thyroid hormone response elements. J Biol Chem. 1990 Feb 15;265(5):2500–2504. [PubMed] [Google Scholar]
  9. Darling D. S., Beebe J. S., Burnside J., Winslow E. R., Chin W. W. 3,5,3'-triiodothyronine (T3) receptor-auxiliary protein (TRAP) binds DNA and forms heterodimers with the T3 receptor. Mol Endocrinol. 1991 Jan;5(1):73–84. doi: 10.1210/mend-5-1-73. [DOI] [PubMed] [Google Scholar]
  10. Davis I. J., Hazel T. G., Lau L. F. Transcriptional activation by Nur77, a growth factor-inducible member of the steroid hormone receptor superfamily. Mol Endocrinol. 1991 Jun;5(6):854–859. doi: 10.1210/mend-5-6-854. [DOI] [PubMed] [Google Scholar]
  11. DeMarzo A. M., Beck C. A., Onate S. A., Edwards D. P. Dimerization of mammalian progesterone receptors occurs in the absence of DNA and is related to the release of the 90-kDa heat shock protein. Proc Natl Acad Sci U S A. 1991 Jan 1;88(1):72–76. doi: 10.1073/pnas.88.1.72. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Dignam J. D., Lebovitz R. M., Roeder R. G. Accurate transcription initiation by RNA polymerase II in a soluble extract from isolated mammalian nuclei. Nucleic Acids Res. 1983 Mar 11;11(5):1475–1489. doi: 10.1093/nar/11.5.1475. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Driggers P. H., Ennist D. L., Gleason S. L., Mak W. H., Marks M. S., Levi B. Z., Flanagan J. R., Appella E., Ozato K. An interferon gamma-regulated protein that binds the interferon-inducible enhancer element of major histocompatibility complex class I genes. Proc Natl Acad Sci U S A. 1990 May;87(10):3743–3747. doi: 10.1073/pnas.87.10.3743. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Eriksson P., Wrange O. Protein-protein contacts in the glucocorticoid receptor homodimer influence its DNA binding properties. J Biol Chem. 1990 Feb 25;265(6):3535–3542. [PubMed] [Google Scholar]
  15. Espeseth A. S., Murphy S. P., Linney E. Retinoic acid receptor expression vector inhibits differentiation of F9 embryonal carcinoma cells. Genes Dev. 1989 Nov;3(11):1647–1656. doi: 10.1101/gad.3.11.1647. [DOI] [PubMed] [Google Scholar]
  16. Evans R. M. The steroid and thyroid hormone receptor superfamily. Science. 1988 May 13;240(4854):889–895. doi: 10.1126/science.3283939. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. Fawell S. E., Lees J. A., White R., Parker M. G. Characterization and colocalization of steroid binding and dimerization activities in the mouse estrogen receptor. Cell. 1990 Mar 23;60(6):953–962. doi: 10.1016/0092-8674(90)90343-d. [DOI] [PubMed] [Google Scholar]
  18. Forman B. M., Samuels H. H. Interactions among a subfamily of nuclear hormone receptors: the regulatory zipper model. Mol Endocrinol. 1990 Sep;4(9):1293–1301. doi: 10.1210/mend-4-9-1293. [DOI] [PubMed] [Google Scholar]
  19. Forman B. M., Yang C. R., Au M., Casanova J., Ghysdael J., Samuels H. H. A domain containing leucine-zipper-like motifs mediate novel in vivo interactions between the thyroid hormone and retinoic acid receptors. Mol Endocrinol. 1989 Oct;3(10):1610–1626. doi: 10.1210/mend-3-10-1610. [DOI] [PubMed] [Google Scholar]
  20. Giguere V., Ong E. S., Segui P., Evans R. M. Identification of a receptor for the morphogen retinoic acid. Nature. 1987 Dec 17;330(6149):624–629. doi: 10.1038/330624a0. [DOI] [PubMed] [Google Scholar]
  21. Glass C. K., Devary O. V., Rosenfeld M. G. Multiple cell type-specific proteins differentially regulate target sequence recognition by the alpha retinoic acid receptor. Cell. 1990 Nov 16;63(4):729–738. doi: 10.1016/0092-8674(90)90139-6. [DOI] [PubMed] [Google Scholar]
  22. Glass C. K., Holloway J. M., Devary O. V., Rosenfeld M. G. The thyroid hormone receptor binds with opposite transcriptional effects to a common sequence motif in thyroid hormone and estrogen response elements. Cell. 1988 Jul 29;54(3):313–323. doi: 10.1016/0092-8674(88)90194-8. [DOI] [PubMed] [Google Scholar]
  23. Glass C. K., Lipkin S. M., Devary O. V., Rosenfeld M. G. Positive and negative regulation of gene transcription by a retinoic acid-thyroid hormone receptor heterodimer. Cell. 1989 Nov 17;59(4):697–708. doi: 10.1016/0092-8674(89)90016-0. [DOI] [PubMed] [Google Scholar]
  24. Graupner G., Wills K. N., Tzukerman M., Zhang X. K., Pfahl M. Dual regulatory role for thyroid-hormone receptors allows control of retinoic-acid receptor activity. Nature. 1989 Aug 24;340(6235):653–656. doi: 10.1038/340653a0. [DOI] [PubMed] [Google Scholar]
  25. Green S., Walter P., Kumar V., Krust A., Bornert J. M., Argos P., Chambon P. Human oestrogen receptor cDNA: sequence, expression and homology to v-erb-A. Nature. 1986 Mar 13;320(6058):134–139. doi: 10.1038/320134a0. [DOI] [PubMed] [Google Scholar]
  26. Gunning P., Leavitt J., Muscat G., Ng S. Y., Kedes L. A human beta-actin expression vector system directs high-level accumulation of antisense transcripts. Proc Natl Acad Sci U S A. 1987 Jul;84(14):4831–4835. doi: 10.1073/pnas.84.14.4831. [DOI] [PMC free article] [PubMed] [Google Scholar]
  27. Hai T., Curran T. Cross-family dimerization of transcription factors Fos/Jun and ATF/CREB alters DNA binding specificity. Proc Natl Acad Sci U S A. 1991 May 1;88(9):3720–3724. doi: 10.1073/pnas.88.9.3720. [DOI] [PMC free article] [PubMed] [Google Scholar]
  28. Halazonetis T. D., Georgopoulos K., Greenberg M. E., Leder P. c-Jun dimerizes with itself and with c-Fos, forming complexes of different DNA binding affinities. Cell. 1988 Dec 2;55(5):917–924. doi: 10.1016/0092-8674(88)90147-x. [DOI] [PubMed] [Google Scholar]
  29. Hamada K., Gleason S. L., Levi B. Z., Hirschfeld S., Appella E., Ozato K. H-2RIIBP, a member of the nuclear hormone receptor superfamily that binds to both the regulatory element of major histocompatibility class I genes and the estrogen response element. Proc Natl Acad Sci U S A. 1989 Nov;86(21):8289–8293. doi: 10.1073/pnas.86.21.8289. [DOI] [PMC free article] [PubMed] [Google Scholar]
  30. Henrich V. C., Sliter T. J., Lubahn D. B., MacIntyre A., Gilbert L. I. A steroid/thyroid hormone receptor superfamily member in Drosophila melanogaster that shares extensive sequence similarity with a mammalian homologue. Nucleic Acids Res. 1990 Jul 25;18(14):4143–4148. doi: 10.1093/nar/18.14.4143. [DOI] [PMC free article] [PubMed] [Google Scholar]
  31. Holloway J. M., Glass C. K., Adler S., Nelson C. A., Rosenfeld M. G. The C'-terminal interaction domain of the thyroid hormone receptor confers the ability of the DNA site to dictate positive or negative transcriptional activity. Proc Natl Acad Sci U S A. 1990 Oct;87(20):8160–8164. doi: 10.1073/pnas.87.20.8160. [DOI] [PMC free article] [PubMed] [Google Scholar]
  32. Hudson L. G., Santon J. B., Glass C. K., Gill G. N. Ligand-activated thyroid hormone and retinoic acid receptors inhibit growth factor receptor promoter expression. Cell. 1990 Sep 21;62(6):1165–1175. doi: 10.1016/0092-8674(90)90393-s. [DOI] [PubMed] [Google Scholar]
  33. Jantzen H. M., Strähle U., Gloss B., Stewart F., Schmid W., Boshart M., Miksicek R., Schütz G. Cooperativity of glucocorticoid response elements located far upstream of the tyrosine aminotransferase gene. Cell. 1987 Apr 10;49(1):29–38. doi: 10.1016/0092-8674(87)90752-5. [DOI] [PubMed] [Google Scholar]
  34. Jones N. Transcriptional regulation by dimerization: two sides to an incestuous relationship. Cell. 1990 Apr 6;61(1):9–11. doi: 10.1016/0092-8674(90)90207-u. [DOI] [PubMed] [Google Scholar]
  35. Kimura A., Israël A., Le Bail O., Kourilsky P. Detailed analysis of the mouse H-2Kb promoter: enhancer-like sequences and their role in the regulation of class I gene expression. Cell. 1986 Jan 31;44(2):261–272. doi: 10.1016/0092-8674(86)90760-9. [DOI] [PubMed] [Google Scholar]
  36. Kumar V., Chambon P. The estrogen receptor binds tightly to its responsive element as a ligand-induced homodimer. Cell. 1988 Oct 7;55(1):145–156. doi: 10.1016/0092-8674(88)90017-7. [DOI] [PubMed] [Google Scholar]
  37. Laemmli U. K. Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature. 1970 Aug 15;227(5259):680–685. doi: 10.1038/227680a0. [DOI] [PubMed] [Google Scholar]
  38. Landschulz W. H., Johnson P. F., McKnight S. L. The DNA binding domain of the rat liver nuclear protein C/EBP is bipartite. Science. 1989 Mar 31;243(4899):1681–1688. doi: 10.1126/science.2494700. [DOI] [PubMed] [Google Scholar]
  39. Lazar M. A., Berrodin T. J., Harding H. P. Differential DNA binding by monomeric, homodimeric, and potentially heteromeric forms of the thyroid hormone receptor. Mol Cell Biol. 1991 Oct;11(10):5005–5015. doi: 10.1128/mcb.11.10.5005. [DOI] [PMC free article] [PubMed] [Google Scholar]
  40. Lazar M. A., Berrodin T. J. Thyroid hormone receptors form distinct nuclear protein-dependent and independent complexes with a thyroid hormone response element. Mol Endocrinol. 1990 Nov;4(11):1627–1635. doi: 10.1210/mend-4-11-1627. [DOI] [PubMed] [Google Scholar]
  41. Lewin B. Commitment and activation at pol II promoters: a tail of protein-protein interactions. Cell. 1990 Jun 29;61(7):1161–1164. doi: 10.1016/0092-8674(90)90675-5. [DOI] [PubMed] [Google Scholar]
  42. Liao J., Ozono K., Sone T., McDonnell D. P., Pike J. W. Vitamin D receptor interaction with specific DNA requires a nuclear protein and 1,25-dihydroxyvitamin D3. Proc Natl Acad Sci U S A. 1990 Dec;87(24):9751–9755. doi: 10.1073/pnas.87.24.9751. [DOI] [PMC free article] [PubMed] [Google Scholar]
  43. Logeat F., Israël N., Ten R., Blank V., Le Bail O., Kourilsky P., Israël A. Inhibition of transcription factors belonging to the rel/NF-kappa B family by a transdominant negative mutant. EMBO J. 1991 Jul;10(7):1827–1832. doi: 10.1002/j.1460-2075.1991.tb07708.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  44. Lucas P. C., Forman B. M., Samuels H. H., Granner D. K. Specificity of a retinoic acid response element in the phosphoenolpyruvate carboxykinase gene promoter: consequences of both retinoic acid and thyroid hormone receptor binding. Mol Cell Biol. 1991 Oct;11(10):5164–5170. doi: 10.1128/mcb.11.10.5164. [DOI] [PMC free article] [PubMed] [Google Scholar]
  45. Luisi B. F., Xu W. X., Otwinowski Z., Freedman L. P., Yamamoto K. R., Sigler P. B. Crystallographic analysis of the interaction of the glucocorticoid receptor with DNA. Nature. 1991 Aug 8;352(6335):497–505. doi: 10.1038/352497a0. [DOI] [PubMed] [Google Scholar]
  46. Mangelsdorf D. J., Ong E. S., Dyck J. A., Evans R. M. Nuclear receptor that identifies a novel retinoic acid response pathway. Nature. 1990 May 17;345(6272):224–229. doi: 10.1038/345224a0. [DOI] [PubMed] [Google Scholar]
  47. Mangelsdorf D. J., Umesono K., Kliewer S. A., Borgmeyer U., Ong E. S., Evans R. M. A direct repeat in the cellular retinol-binding protein type II gene confers differential regulation by RXR and RAR. Cell. 1991 Aug 9;66(3):555–561. doi: 10.1016/0092-8674(81)90018-0. [DOI] [PubMed] [Google Scholar]
  48. Martinez E., Givel F., Wahli W. A common ancestor DNA motif for invertebrate and vertebrate hormone response elements. EMBO J. 1991 Feb;10(2):263–268. doi: 10.1002/j.1460-2075.1991.tb07946.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  49. Martinez E., Givel F., Wahli W. The estrogen-responsive element as an inducible enhancer: DNA sequence requirements and conversion to a glucocorticoid-responsive element. EMBO J. 1987 Dec 1;6(12):3719–3727. doi: 10.1002/j.1460-2075.1987.tb02706.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  50. Miyazaki J., Appella E., Ozato K. Negative regulation of the major histocompatibility class I gene in undifferentiated embryonal carcinoma cells. Proc Natl Acad Sci U S A. 1986 Dec;83(24):9537–9541. doi: 10.1073/pnas.83.24.9537. [DOI] [PMC free article] [PubMed] [Google Scholar]
  51. Murray M. B., Towle H. C. Identification of nuclear factors that enhance binding of the thyroid hormone receptor to a thyroid hormone response element. Mol Endocrinol. 1989 Sep;3(9):1434–1442. doi: 10.1210/mend-3-9-1434. [DOI] [PubMed] [Google Scholar]
  52. Murre C., McCaw P. S., Baltimore D. A new DNA binding and dimerization motif in immunoglobulin enhancer binding, daughterless, MyoD, and myc proteins. Cell. 1989 Mar 10;56(5):777–783. doi: 10.1016/0092-8674(89)90682-x. [DOI] [PubMed] [Google Scholar]
  53. Murre C., McCaw P. S., Vaessin H., Caudy M., Jan L. Y., Jan Y. N., Cabrera C. V., Buskin J. N., Hauschka S. D., Lassar A. B. Interactions between heterologous helix-loop-helix proteins generate complexes that bind specifically to a common DNA sequence. Cell. 1989 Aug 11;58(3):537–544. doi: 10.1016/0092-8674(89)90434-0. [DOI] [PubMed] [Google Scholar]
  54. Nakabeppu Y., Ryder K., Nathans D. DNA binding activities of three murine Jun proteins: stimulation by Fos. Cell. 1988 Dec 2;55(5):907–915. doi: 10.1016/0092-8674(88)90146-8. [DOI] [PubMed] [Google Scholar]
  55. Nakai A., Sakurai A., Bell G. I., DeGroot L. J. Characterization of a third human thyroid hormone receptor coexpressed with other thyroid hormone receptors in several tissues. Mol Endocrinol. 1988 Nov;2(11):1087–1092. doi: 10.1210/mend-2-11-1087. [DOI] [PubMed] [Google Scholar]
  56. Nolan G. P., Ghosh S., Liou H. C., Tempst P., Baltimore D. DNA binding and I kappa B inhibition of the cloned p65 subunit of NF-kappa B, a rel-related polypeptide. Cell. 1991 Mar 8;64(5):961–969. doi: 10.1016/0092-8674(91)90320-x. [DOI] [PubMed] [Google Scholar]
  57. När A. M., Boutin J. M., Lipkin S. M., Yu V. C., Holloway J. M., Glass C. K., Rosenfeld M. G. The orientation and spacing of core DNA-binding motifs dictate selective transcriptional responses to three nuclear receptors. Cell. 1991 Jun 28;65(7):1267–1279. doi: 10.1016/0092-8674(91)90021-p. [DOI] [PubMed] [Google Scholar]
  58. O'Donnell A. L., Rosen E. D., Darling D. S., Koenig R. J. Thyroid hormone receptor mutations that interfere with transcriptional activation also interfere with receptor interaction with a nuclear protein. Mol Endocrinol. 1991 Jan;5(1):94–99. doi: 10.1210/mend-5-1-94. [DOI] [PubMed] [Google Scholar]
  59. Oro A. E., McKeown M., Evans R. M. Relationship between the product of the Drosophila ultraspiracle locus and the vertebrate retinoid X receptor. Nature. 1990 Sep 20;347(6290):298–301. doi: 10.1038/347298a0. [DOI] [PubMed] [Google Scholar]
  60. Petkovich M., Brand N. J., Krust A., Chambon P. A human retinoic acid receptor which belongs to the family of nuclear receptors. Nature. 1987 Dec 3;330(6147):444–450. doi: 10.1038/330444a0. [DOI] [PubMed] [Google Scholar]
  61. Petty K. J., Desvergne B., Mitsuhashi T., Nikodem V. M. Identification of a thyroid hormone response element in the malic enzyme gene. J Biol Chem. 1990 May 5;265(13):7395–7400. [PubMed] [Google Scholar]
  62. Power R. F., Lydon J. P., Conneely O. M., O'Malley B. W. Dopamine activation of an orphan of the steroid receptor superfamily. Science. 1991 Jun 14;252(5012):1546–1548. doi: 10.1126/science.2047861. [DOI] [PubMed] [Google Scholar]
  63. Ptashne M. How eukaryotic transcriptional activators work. Nature. 1988 Oct 20;335(6192):683–689. doi: 10.1038/335683a0. [DOI] [PubMed] [Google Scholar]
  64. Rottman J. N., Widom R. L., Nadal-Ginard B., Mahdavi V., Karathanasis S. K. A retinoic acid-responsive element in the apolipoprotein AI gene distinguishes between two different retinoic acid response pathways. Mol Cell Biol. 1991 Jul;11(7):3814–3820. doi: 10.1128/mcb.11.7.3814. [DOI] [PMC free article] [PubMed] [Google Scholar]
  65. Samuels H. H., Stanley F., Casanova J. Depletion of L-3,5,3'-triiodothyronine and L-thyroxine in euthyroid calf serum for use in cell culture studies of the action of thyroid hormone. Endocrinology. 1979 Jul;105(1):80–85. doi: 10.1210/endo-105-1-80. [DOI] [PubMed] [Google Scholar]
  66. Selmi S., Samuels H. H. Thyroid hormone receptor/and v-erbA. A single amino acid difference in the C-terminal region influences dominant negative activity and receptor dimer formation. J Biol Chem. 1991 Jun 25;266(18):11589–11593. [PubMed] [Google Scholar]
  67. Shea M. J., King D. L., Conboy M. J., Mariani B. D., Kafatos F. C. Proteins that bind to Drosophila chorion cis-regulatory elements: a new C2H2 zinc finger protein and a C2C2 steroid receptor-like component. Genes Dev. 1990 Jul;4(7):1128–1140. doi: 10.1101/gad.4.7.1128. [DOI] [PubMed] [Google Scholar]
  68. Shirayoshi Y., Miyazaki J., Burke P. A., Hamada K., Appella E., Ozato K. Binding of multiple nuclear factors to the 5' upstream regulatory element of the murine major histocompatibility class I gene. Mol Cell Biol. 1987 Dec;7(12):4542–4548. doi: 10.1128/mcb.7.12.4542. [DOI] [PMC free article] [PubMed] [Google Scholar]
  69. Spanjaard R. A., Darling D. S., Chin W. W. Ligand-binding and heterodimerization activities of a conserved region in the ligand-binding domain of the thyroid hormone receptor. Proc Natl Acad Sci U S A. 1991 Oct 1;88(19):8587–8591. doi: 10.1073/pnas.88.19.8587. [DOI] [PMC free article] [PubMed] [Google Scholar]
  70. Towbin H., Staehelin T., Gordon J. Electrophoretic transfer of proteins from polyacrylamide gels to nitrocellulose sheets: procedure and some applications. Proc Natl Acad Sci U S A. 1979 Sep;76(9):4350–4354. doi: 10.1073/pnas.76.9.4350. [DOI] [PMC free article] [PubMed] [Google Scholar]
  71. Treacy M. N., He X., Rosenfeld M. G. I-POU: a POU-domain protein that inhibits neuron-specific gene activation. Nature. 1991 Apr 18;350(6319):577–584. doi: 10.1038/350577a0. [DOI] [PubMed] [Google Scholar]
  72. Tsai S. Y., Carlstedt-Duke J., Weigel N. L., Dahlman K., Gustafsson J. A., Tsai M. J., O'Malley B. W. Molecular interactions of steroid hormone receptor with its enhancer element: evidence for receptor dimer formation. Cell. 1988 Oct 21;55(2):361–369. doi: 10.1016/0092-8674(88)90059-1. [DOI] [PubMed] [Google Scholar]
  73. Umesono K., Giguere V., Glass C. K., Rosenfeld M. G., Evans R. M. Retinoic acid and thyroid hormone induce gene expression through a common responsive element. Nature. 1988 Nov 17;336(6196):262–265. doi: 10.1038/336262a0. [DOI] [PubMed] [Google Scholar]
  74. Umesono K., Murakami K. K., Thompson C. C., Evans R. M. Direct repeats as selective response elements for the thyroid hormone, retinoic acid, and vitamin D3 receptors. Cell. 1991 Jun 28;65(7):1255–1266. doi: 10.1016/0092-8674(91)90020-y. [DOI] [PMC free article] [PubMed] [Google Scholar]
  75. Wang L. H., Tsai S. Y., Cook R. G., Beattie W. G., Tsai M. J., O'Malley B. W. COUP transcription factor is a member of the steroid receptor superfamily. Nature. 1989 Jul 13;340(6229):163–166. doi: 10.1038/340163a0. [DOI] [PubMed] [Google Scholar]
  76. Williams G. R., Harney J. W., Forman B. M., Samuels H. H., Brent G. A. Oligomeric binding of T3 receptor is required for maximal T3 response. J Biol Chem. 1991 Oct 15;266(29):19636–19644. [PubMed] [Google Scholar]
  77. Yang N., Schüle R., Mangelsdorf D. J., Evans R. M. Characterization of DNA binding and retinoic acid binding properties of retinoic acid receptor. Proc Natl Acad Sci U S A. 1991 May 1;88(9):3559–3563. doi: 10.1073/pnas.88.9.3559. [DOI] [PMC free article] [PubMed] [Google Scholar]
  78. Yu V. C., Delsert C., Andersen B., Holloway J. M., Devary O. V., När A. M., Kim S. Y., Boutin J. M., Glass C. K., Rosenfeld M. G. RXR beta: a coregulator that enhances binding of retinoic acid, thyroid hormone, and vitamin D receptors to their cognate response elements. Cell. 1991 Dec 20;67(6):1251–1266. doi: 10.1016/0092-8674(91)90301-e. [DOI] [PubMed] [Google Scholar]

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