Crossref journal-article
American Association for the Advancement of Science (AAAS)
Science (221)
Abstract

The ligand-binding domain of nuclear receptors contains a transcriptional activation function (AF-2) that mediates hormone-dependent binding of coactivator proteins. Scanning surface mutagenesis on the human thyroid hormone receptor was performed to define the site that binds the coactivators, glucocorticoid receptor–interacting protein 1 (GRIP1) and steroid receptor coactivator 1 (SRC-1). The residues involved encircle a small surface that contains a hydrophobic cleft. Ligand activation of transcription involves formation of this surface by folding the carboxyl-terminal α helix against a scaffold of three other helices. These features may represent general ones for nuclear receptors.

Bibliography

Feng, W., Ribeiro, R. C. J., Wagner, R. L., Nguyen, H., Apriletti, J. W., Fletterick, R. J., Baxter, J. D., Kushner, P. J., & West, B. L. (1998). Hormone-Dependent Coactivator Binding to a Hydrophobic Cleft on Nuclear Receptors. Science, 280(5370), 1747–1749.

Authors 9
  1. Weijun Feng (first)
  2. Ralff C. J. Ribeiro (additional)
  3. Richard L. Wagner (additional)
  4. Hoa Nguyen (additional)
  5. James W. Apriletti (additional)
  6. Robert J. Fletterick (additional)
  7. John D. Baxter (additional)
  8. Peter J. Kushner (additional)
  9. Brian L. West (additional)
References 29 Referenced 451
  1. C. K. Glass, D. W. Rose, M. G. Rosenfeld, Curr. Opin. Cell. Biol. 9, 222 (1997); Horwitz K. B., et al., Mol. Endocrinol. 10, 1167 (1996). / Mol. Endocrinol. by Horwitz K. B. (1996)
  2. 10.1126/science.7529940
  3. 10.1016/S0092-8674(00)80463-8
  4. Russo A. A., Jeffrey P. D., Patten A. K., Massague J., Pavletich N. P., Nature382, 325 (1996). (10.1038/382325a0) / Nature by Russo A. A. (1996)
  5. Saatcioglu F., et al., Mol. Cell. Biol.17, 4687 (1997). (10.1128/MCB.17.8.4687) / Mol. Cell. Biol. by Saatcioglu F. (1997)
  6. Collingwood T. N., et al., Proc. Natl. Acad. Sci. U.S.A.94, 248 (1997). (10.1073/pnas.94.1.248) / Proc. Natl. Acad. Sci. U.S.A. by Collingwood T. N. (1997)
  7. Kamei Y., et al., Cell85, 403 (1996). (10.1016/S0092-8674(00)81118-6) / Cell by Kamei Y. (1996)
  8. Baniahmad A., et al., Mol. Cell. Biol.15, 76 (1995). (10.1128/MCB.15.1.76) / Mol. Cell. Biol. by Baniahmad A. (1995)
  9. Henttu P. M., Kalkhoven E., Parker M. G., ibid17, 1832 (1997). / ibid by Henttu P. M. (1997)
  10. Wurtz J. M., et al., Nature Struct. Biol.3, 87 (1996). (10.1038/nsb0196-87) / Nature Struct. Biol. by Wurtz J. M. (1996)
  11. A. L. O'Donnell, Rosen E. D., Darling D. S., Koenig R. J., Mol. Endocrinol. 5, 94 (1991). (10.1210/mend-5-1-94) / Mol. Endocrinol. by Rosen E. D. (1991)
  12. Whitfield G. K., et al., ibid9, 1166 (1995). / ibid by Whitfield G. K. (1995)
  13. Wagner R. L., et al., Nature378, 690 (1995). (10.1038/378690a0) / Nature by Wagner R. L. (1995)
  14. TR mutants were created by ligating double-stranded oligonucleotides to encode the mutant sequence into the pCMX vector that encodes the full-length 461-amino-acid hTRβ1 sequence. Some of the mutations of hTRβ1 in the CMX vector and all three mutations of hERα in the pSG5-ER-HEGO vector [L. Tora, et al., EMBO J. 8, 1981 (1989)] were created with the use of Quick Change Site-Directed Mutagenesis Kits (Stratagene). The mutated sequences were verified by DNA sequencing with Sequenase Kits (Stratagene). The T3 binding affinity constants (K d) for in vitro–translated WT and mutant TRs were measured by using [125I]T3 in gel-filtration binding assays as described [Apriletti J. W., Baxter J. D., Lau K. H., West B. L., Protein Expr. Purif. 6, 363 (1995)]. Both the K dand standard error were calculated with the Prism computer program (GraphPad Software, San Diego, CA). Mutations are indicated by the single-letter amino acid abbreviations (17), with the native residue name being followed by the primary sequence position number and then by the mutated residue name. The affinity of the WT TR is 81 ± 12 pM. The relative affinity was determined by dividing the WT K d by theK d for each mutant. The 37 mutants tested, and their relative affinities (%) were: E217R (123%), E227R (109%), K242E (92%), E267R (117%), H271R (123%), T277R (7%), T281R (145%), V284R (105%), D285A (89%), K288A (98%), C294K (94%), E295R (118%), C298A (87%), C298R (141%), E299A (171%), I302A (86%), I302R (99%), K306A (6%), K306E (6%), P384R (164%), A387R (107%), E390R (151%), E393R (146%), L400R (95%), H413R (109%), H416R (153%), M423R (156%), R429A (48%), S437R (170%), L440R (174%), V444R (89%), T448R (234%), E449R (36%), P453E (32%), L454R (26%), L456R (46%), and E457K (71%). (10.1006/prep.1995.1048) / Protein Expr. Purif. by Apriletti J. W. (1995)
  15. 10.1073/pnas.93.10.4948
  16. Feng et al. data not shown.
  17. Single-letter abbreviations for the amino acid residues are as follows: A Ala; C Cys; D Asp; E Glu; F Phe; G Gly; H His; I Ile; K Lys; L Leu; M Met; N Asn; P Pro; Q Gln; R Arg; S Ser; T Thr; V Val; W Trp; and Y. Tyr.
  18. Spencer T. E., et al., Nature389, 194 (1997); S. A. Onate, S. Y. Tsai, M. J. Tsai, B. W. O'Malley, Science 270, 1354 (1995). (10.1038/38304) / Nature by Spencer T. E. (1997)
  19. Lee J. W., Gulick T., Moore D. D., Mol. Endocrinol.6, 1867 (1992). / Mol. Endocrinol. by Lee J. W. (1992)
  20. B. M. Forman, H. H. Samuels, ibid 4, 1293 (1990); Danielian P. S., White R., Lees J. A., Parker M. G., EMBO J. 11, 1025 (1992). (10.1002/j.1460-2075.1992.tb05141.x) / EMBO J. by Danielian P. S. (1992)
  21. Berry M., Metzger D., Chambon P., ibid9, 2811 (1990). / ibid by Berry M. (1990)
  22. 10.1210/mend.12.2.0065
  23. 10.1038/39645
  24. Renaud J. P., et al., ibid378, 681 (1995); W. Bourguet, M. Ruff, P. Chambon, H. Gronemeyer, D. Moras, ibid., 375, 377 (1995). / ibid by Renaud J. P. (1995)
  25. The WT or mutant pCMV-hTRβ1 vector and the pSG5-GRIP1 and pCMX–SRC-1a vectors were used to produce radiolabeled full-length receptors with the T n T-coupled Reticulocyte Lysate System (Promega) and [ 35 S]Met (DuPont). GST-GRIP1 (amino acids 721 to 1221 from M. Stallcup) GST-GRIP1 (amino acids 563 to 1121 from M. Stallcup) GST–SRC-1a (amino acids 381 to 882) GST-hTRβ1 (full-length WT or mutants WT from C. Costa) and the GST-hRXRα (full-length from C. Costa) fusion proteins were produced in Escherichia coli strain HB101 according to the manufacturer's protocol (Pharmacia Biotech). The binding experiments were performed by mixing glutathione beads containing 10 μg of GST fusion proteins (Coomassie Plus Protein Assay Reagent Pierce) with 1 to 2 μl of the 35 S-labeled WT or mutant hTRβ1 (25 fmol 4000 cpm of receptor) or 1 to 2 μl of coactivators in 150 μl of binding buffer (20 mM HEPES 150 mM KCl 25 mM MgCl 2 10% glycerol 1 mM dithiothreitol 0.2 mM phenylmethylsulfonyl fluoride and protease inhibitors) containing bovine serum albumin (2 μg/ml) for 1.5 hours in the presence or absence of 1 μM T 3 . After the beads were washed three times with 1 ml of binding buffer the bound proteins were separated with use of 10% SDS–PAGE and visualized by autoradiography. Binding was quantitated by phosphorimaging with ImageQuant (Molecular Dynamics).
  26. HeLa cell transfection and assay conditions are described [P. Webb, G. N. Lopez, R. M. Uht, P. J. Kushner, Mol. Endocrinol. 9, 443 (1995)]. For TR assays, we used 5 μg of the reporter p(DR-4)2–TK-LUC consisting of two copies of the DR-4 element [a direct repeat of the consensus TR response element (TRE) spaced by 4 bp] placed upstream of a minimal (−32/+45) thymidine kinase gene promoter linked to luciferase coding sequences. A reporter containing palindromic TREs gave the same results (16). We used 2 μg of the TR expression vector, pCMX-TR (WT or mutant), and 0.5 μg of the control vector, pJ3LacZ, which contains the SV40 promoter linked to the β-galactosidase (β-Gal) gene. For the hERα assays, we used 5 μg of estrogen-responsive reporter plasmid encoding chloramphenicol acetyltransferase (CAT), pERE-CollTATA [Sadovsky Y., et al., Mol. Cell. Biol. 15, 1554 (1995)], 0.5 μg of expression vector encoding full-length hERα, pSG5-ER HEGO (WT or mutants), and 2 μg of pJ3LacZ. For the experiments of Figs. 1 D and 2 C, 0.5 μg of a full-length GRIP1 expression vector, pSG5-GRIP1, was also included in the transfection. Transfected cells were treated with or without 1 μM T3 or E2, as indicated. After cell culture for 24 hours, the LUC or CAT activities were assayed; β-Gal activities were also assayed to correct for differences in transfection efficiencies. (10.1128/MCB.15.3.1554) / Mol. Cell. Biol. by Sadovsky Y. (1995)
  27. T. E. Ferrin, C. C. Huang, L. E. Jarvis, R. Langridge, J. Mol. Graphics 6, 13 (1988); Huang C. C., Pettersen E. F., Klein T. E., Ferrin T. E., Langridge R., ibid 9, 230 (1991). / ibid by Huang C. C. (1991)
  28. 10.1002/prot.340110407
  29. We thank M. Stallcup and C. Costa for providing the GST-GRIP1 GST-RXRα and GST-TRβ expression vectors; P. Webb and M. Tsai for providing the pSG5-GRIP1 and pCMX–SRC-1a expression vectors; K. Yamamoto P. Webb M. G. Rosenfeld and T. Scanlan for suggestions; and T. Chen and K. Nakamura for technical assistance. W.F. is a recipient of a postdoctoral fellowship from the National Institutes of Health (DK09516). Supported by NIH grants to J.D.B. (DK51281) and to the Computer Graphics Laboratory at the University of California San Francisco (P41-RR01081).
Dates
Type When
Created 23 years, 1 month ago (July 27, 2002, 5:50 a.m.)
Deposited 1 year, 7 months ago (Jan. 13, 2024, 12:26 a.m.)
Indexed 1 month, 1 week ago (July 26, 2025, 5:30 a.m.)
Issued 27 years, 2 months ago (June 12, 1998)
Published 27 years, 2 months ago (June 12, 1998)
Published Print 27 years, 2 months ago (June 12, 1998)
Funders 0

None

@article{Feng_1998, title={Hormone-Dependent Coactivator Binding to a Hydrophobic Cleft on Nuclear Receptors}, volume={280}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.280.5370.1747}, DOI={10.1126/science.280.5370.1747}, number={5370}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Feng, Weijun and Ribeiro, Ralff C. J. and Wagner, Richard L. and Nguyen, Hoa and Apriletti, James W. and Fletterick, Robert J. and Baxter, John D. and Kushner, Peter J. and West, Brian L.}, year={1998}, month=jun, pages={1747–1749} }