| Structural highlights
Disease
[THB_HUMAN] Defects in THRB are the cause of generalized thyroid hormone resistance (GTHR) [MIM:188570]. GTHR is a disease characterized by goiter, abnormal mental functions, increased susceptibility to infections, abnormal growth and bone maturation, tachycardia and deafness. Affected individuals may also have attention deficit-hyperactivity disorders (ADHD) and language difficulties. GTHR patients also have high levels of circulating thyroid hormones (T3-T4), with normal or slightly elevated thyroid stimulating hormone (TSH).[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] Defects in THRB are the cause of generalized thyroid hormone resistance autosomal recessive (GTHRAR) [MIM:274300]. An autosomal recessive disorder characterized by goiter, clinical euthyroidism, end-organ unresponsiveness to thyroid hormone, abnormal growth and bone maturation, and deafness. Patients also have high levels of circulating thyroid hormones, with elevated thyroid stimulating hormone. Defects in THRB are the cause of selective pituitary thyroid hormone resistance (PRTH) [MIM:145650]; also known as familial hyperthyroidism due to inappropriate thyrotropin secretion. PRTH is a variant form of thyroid hormone resistance and is characterized by clinical hyperthyroidism, with elevated free thyroid hormones, but inappropriately normal serum TSH. Unlike GRTH, where the syndrome usually segregates with a dominant allele, the mode of inheritance in PRTH has not been established.[19] [20]
Function
[THB_HUMAN] High affinity receptor for triiodothyronine.[21]
Evolutionary Conservation
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
Nuclear receptors are important targets for pharmaceuticals, but similarities between family members cause difficulties in obtaining highly selective compounds. Synthetic ligands that are selective for thyroid hormone (TH) receptor beta (TRbeta) vs. TRalpha reduce cholesterol and fat without effects on heart rate; thus, it is important to understand TRbeta-selective binding. Binding of 3 selective ligands (GC-1, KB141, and GC-24) is characterized at the atomic level; preferential binding depends on a nonconserved residue (Asn-331beta) in the TRbeta ligand-binding cavity (LBC), and GC-24 gains extra selectivity from insertion of a bulky side group into an extension of the LBC that only opens up with this ligand. Here we report that the natural TH 3,5,3'-triodothyroacetic acid (Triac) exhibits a previously unrecognized mechanism of TRbeta selectivity. TR x-ray structures reveal better fit of ligand with the TRalpha LBC. The TRbeta LBC, however, expands relative to TRalpha in the presence of Triac (549 A(3) vs. 461 A(3)), and molecular dynamics simulations reveal that water occupies the extra space. Increased solvation compensates for weaker interactions of ligand with TRbeta and permits greater flexibility of the Triac carboxylate group in TRbeta than in TRalpha. We propose that this effect results in lower entropic restraint and decreases free energy of interactions between Triac and TRbeta, explaining subtype-selective binding. Similar effects could potentially be exploited in nuclear receptor drug design.
Gaining ligand selectivity in thyroid hormone receptors via entropy.,Martinez L, Nascimento AS, Nunes FM, Phillips K, Aparicio R, Dias SM, Figueira AC, Lin JH, Nguyen P, Apriletti JW, Neves FA, Baxter JD, Webb P, Skaf MS, Polikarpov I Proc Natl Acad Sci U S A. 2009 Nov 19. PMID:19926848[22]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
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- ↑ Usala SJ, Tennyson GE, Bale AE, Lash RW, Gesundheit N, Wondisford FE, Accili D, Hauser P, Weintraub BD. A base mutation of the C-erbA beta thyroid hormone receptor in a kindred with generalized thyroid hormone resistance. Molecular heterogeneity in two other kindreds. J Clin Invest. 1990 Jan;85(1):93-100. PMID:2153155 doi:http://dx.doi.org/10.1172/JCI114438
- ↑ Usala SJ, Menke JB, Watson TL, Berard WE, Bradley C, Bale AE, Lash RW, Weintraub BD. A new point mutation in the 3,5,3'-triiodothyronine-binding domain of the c-erbA beta thyroid hormone receptor is tightly linked to generalized thyroid hormone resistance. J Clin Endocrinol Metab. 1991 Jan;72(1):32-8. PMID:1846005
- ↑ Parrilla R, Mixson AJ, McPherson JA, McClaskey JH, Weintraub BD. Characterization of seven novel mutations of the c-erbA beta gene in unrelated kindreds with generalized thyroid hormone resistance. Evidence for two "hot spot" regions of the ligand binding domain. J Clin Invest. 1991 Dec;88(6):2123-30. PMID:1661299 doi:http://dx.doi.org/10.1172/JCI115542
- ↑ Usala SJ, Menke JB, Watson TL, Wondisford FE, Weintraub BD, Berard J, Bradley WE, Ono S, Mueller OT, Bercu BB. A homozygous deletion in the c-erbA beta thyroid hormone receptor gene in a patient with generalized thyroid hormone resistance: isolation and characterization of the mutant receptor. Mol Endocrinol. 1991 Mar;5(3):327-35. PMID:1653889
- ↑ Adams M, Nagaya T, Tone Y, Jameson JL, Chatterjee VK. Functional properties of a novel mutant thyroid hormone receptor in a family with generalized thyroid hormone resistance syndrome. Clin Endocrinol (Oxf). 1992 Mar;36(3):281-9. PMID:1563081
- ↑ Cugini CD Jr, Leidy JW Jr, Chertow BS, Berard J, Bradley WE, Menke JB, Hao EH, Usala SJ. An arginine to histidine mutation in codon 315 of the c-erbA beta thyroid hormone receptor in a kindred with generalized resistance to thyroid hormones results in a receptor with significant 3,5,3'-triiodothyronine binding activity. J Clin Endocrinol Metab. 1992 May;74(5):1164-70. PMID:1314846
- ↑ Shuto Y, Wakabayashi I, Amuro N, Minami S, Okazaki T. A point mutation in the 3,5,3'-triiodothyronine-binding domain of thyroid hormone receptor-beta associated with a family with generalized resistance to thyroid hormone. J Clin Endocrinol Metab. 1992 Jul;75(1):213-7. PMID:1619012
- ↑ Sasaki S, Nakamura H, Tagami T, Miyoshi Y, Tanaka K, Imura H. A point mutation of the T3 receptor beta 1 gene in a kindred of generalized resistance to thyroid hormone. Mol Cell Endocrinol. 1992 Apr;84(3):159-66. PMID:1587388
- ↑ Behr M, Loos U. A point mutation (Ala229 to Thr) in the hinge domain of the c-erbA beta thyroid hormone receptor gene in a family with generalized thyroid hormone resistance. Mol Endocrinol. 1992 Jul;6(7):1119-26. PMID:1324420
- ↑ Weiss RE, Weinberg M, Refetoff S. Identical mutations in unrelated families with generalized resistance to thyroid hormone occur in cytosine-guanine-rich areas of the thyroid hormone receptor beta gene. Analysis of 15 families. J Clin Invest. 1993 Jun;91(6):2408-15. PMID:8514853 doi:http://dx.doi.org/10.1172/JCI116474
- ↑ Weiss RE, Chyna B, Duell PB, Hayashi Y, Sunthornthepvarakul T, Refetoff S. A new point mutation (C446R) in the thyroid hormone receptor-beta gene of a family with resistance to thyroid hormone. J Clin Endocrinol Metab. 1994 May;78(5):1253-6. PMID:8175986
- ↑ Refetoff S, Weiss RE, Wing JR, Sarne D, Chyna B, Hayashi Y. Resistance to thyroid hormone in subjects from two unrelated families is associated with a point mutation in the thyroid hormone receptor beta gene resulting in the replacement of the normal proline 453 with serine. Thyroid. 1994 Fall;4(3):249-54. PMID:7833659
- ↑ Pohlenz J, Schonberger W, Wemme H, Winterpacht A, Wirth S, Zabel B. New point mutation (R243W) in the hormone binding domain of the c-erbA beta 1 gene in a family with generalized resistance to thyroid hormone. Hum Mutat. 1996;7(1):79-81. PMID:8664910 doi:<79::AID-HUMU15>3.0.CO;2-P 10.1002/(SICI)1098-1004(1996)7:1<79::AID-HUMU15>3.0.CO;2-P
- ↑ Seto D, Weintraub BD. Rapid molecular diagnosis of mutations associated with generalized thyroid hormone resistance by PCR-coupled automated direct sequencing of genomic DNA: detection of two novel mutations. Hum Mutat. 1996;8(3):247-57. PMID:8889584 doi:<247::AID-HUMU8>3.0.CO;2-6 10.1002/(SICI)1098-1004(1996)8:3<247::AID-HUMU8>3.0.CO;2-6
- ↑ Menzaghi C, Di Paola R, Corrias A, Einaudi S, Trischitta V, De Sanctis C, De Filippis V. T426I a new mutation in the thyroid hormone receptor beta gene in a sporadic patient with resistance to thyroid hormone and dysmorphism. Mutations in brief no. 192. Online. Hum Mutat. 1998;12(4):289. PMID:10660344
- ↑ Mamanasiri S, Yesil S, Dumitrescu AM, Liao XH, Demir T, Weiss RE, Refetoff S. Mosaicism of a thyroid hormone receptor-beta gene mutation in resistance to thyroid hormone. J Clin Endocrinol Metab. 2006 Sep;91(9):3471-7. Epub 2006 Jun 27. PMID:16804041 doi:10.1210/jc.2006-0727
- ↑ Rivolta CM, Olcese MC, Belforte FS, Chiesa A, Gruneiro-Papendieck L, Iorcansky S, Herzovich V, Cassorla F, Gauna A, Gonzalez-Sarmiento R, Targovnik HM. Genotyping of resistance to thyroid hormone in South American population. Identification of seven novel missense mutations in the human thyroid hormone receptor beta gene. Mol Cell Probes. 2009 Jun-Aug;23(3-4):148-53. doi: 10.1016/j.mcp.2009.02.002., Epub 2009 Mar 4. PMID:19268523 doi:10.1016/j.mcp.2009.02.002
- ↑ Flynn TR, Hollenberg AN, Cohen O, Menke JB, Usala SJ, Tollin S, Hegarty MK, Wondisford FE. A novel C-terminal domain in the thyroid hormone receptor selectively mediates thyroid hormone inhibition. J Biol Chem. 1994 Dec 30;269(52):32713-6. PMID:7528740
- ↑ Geffner ME, Su F, Ross NS, Hershman JM, Van Dop C, Menke JB, Hao E, Stanzak RK, Eaton T, Samuels HH, et al.. An arginine to histidine mutation in codon 311 of the C-erbA beta gene results in a mutant thyroid hormone receptor that does not mediate a dominant negative phenotype. J Clin Invest. 1993 Feb;91(2):538-46. PMID:8381821 doi:http://dx.doi.org/10.1172/JCI116233
- ↑ Chou WY, Cheng YS, Ho CL, Liu ST, Liu PY, Kuo CC, Chang HP, Chen YH, Chang GG, Huang SM. Human spot 14 protein interacts physically and functionally with the thyroid receptor. Biochem Biophys Res Commun. 2007 May 25;357(1):133-8. Epub 2007 Mar 26. PMID:17418816 doi:10.1016/j.bbrc.2007.03.103
- ↑ Martinez L, Nascimento AS, Nunes FM, Phillips K, Aparicio R, Dias SM, Figueira AC, Lin JH, Nguyen P, Apriletti JW, Neves FA, Baxter JD, Webb P, Skaf MS, Polikarpov I. Gaining ligand selectivity in thyroid hormone receptors via entropy. Proc Natl Acad Sci U S A. 2009 Nov 19. PMID:19926848
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