| Structural highlights
Disease
TTHY_HUMAN Defects in TTR are the cause of amyloidosis transthyretin-related (AMYL-TTR) [MIM:105210. A hereditary generalized amyloidosis due to transthyretin amyloid deposition. Protein fibrils can form in different tissues leading to amyloid polyneuropathies, amyloidotic cardiomyopathy, carpal tunnel syndrome, systemic senile amyloidosis. The disease includes leptomeningeal amyloidosis that is characterized by primary involvement of the central nervous system. Neuropathologic examination shows amyloid in the walls of leptomeningeal vessels, in pia arachnoid, and subpial deposits. Some patients also develop vitreous amyloid deposition that leads to visual impairment (oculoleptomeningeal amyloidosis). Clinical features include seizures, stroke-like episodes, dementia, psychomotor deterioration, variable amyloid deposition in the vitreous humor.[1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] [18] [19] [20] [21] [22] [23] [24] [25] [26] [27] [28] [29] [30] [31] [32] [33] [34] [35] [36] [37] [38] [39] [40] [41] [42] [43] [44] [45] [46] [47] [48] [49] [50] [51] [52] [53] [54] [55] [56] [57] [58] [59] [60] [61] [62] [63] [64] [65] [66] [67] [68] [69] [70] [71] [72] Defects in TTR are a cause of hyperthyroxinemia dystransthyretinemic euthyroidal (HTDE) [MIM:145680. It is a condition characterized by elevation of total and free thyroxine in healthy, euthyroid persons without detectable binding protein abnormalities.[73] Defects in TTR are a cause of carpal tunnel syndrome type 1 (CTS1) [MIM:115430. It is a condition characterized by entrapment of the median nerve within the carpal tunnel. Symptoms include burning pain and paresthesias involving the ventral surface of the hand and fingers which may radiate proximally. Impairment of sensation in the distribution of the median nerve and thenar muscle atrophy may occur. This condition may be associated with repetitive occupational trauma, wrist injuries, amyloid neuropathies, rheumatoid arthritis.[74]
Function
TTHY_HUMAN Thyroid hormone-binding protein. Probably transports thyroxine from the bloodstream to the brain.[75]
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
Transthyretin (TTR) is one of thirty non-homologous proteins whose misfolding, dissociation, aggregation, and deposition is linked to human amyloid diseases. Previous studies have identified that TTR amyloidogenesis can be inhibited through stabilization of the native tetramer state by small molecule binding to the thyroid hormone sites of TTR. We have evaluated a new series of beta-aminoxypropionic acids (compounds 5-21), with a single aromatic moiety (aryl or fluorenyl) linked through a flexible oxime tether to a carboxylic acid. These compounds are structurally distinct from the native ligand thyroxine and typical halogenated biaryl NSAID-like inhibitors to avoid off-target hormonal or anti-inflammatory activity. Based on an in vitro fibril formation assay, five of these compounds showed significant inhibition of TTR amyloidogenesis, with two fluorenyl compounds displaying inhibitor efficacy comparable to the well-known TTR inhibitor diflunisal. Fluorenyl 15 is the most potent compound in this series and importantly does not show off-target anti-inflammatory activity. Crystal structures of the TTR:inhibitor complexes, in agreement with molecular docking studies, revealed that the aromatic moiety, linked to the sp(2)-hybridized oxime carbon, specifically directed the ligand in either a forward or reverse binding mode. Compared to the aryl family members, the bulkier fluorenyl analogs achieved more extensive interactions with the binding pockets of TTR and demonstrated better inhibitory activity in the fibril formation assay. Preliminary optimization efforts are described that focused on replacement of the C-terminal acid in both the aryl and fluorenyl series (compounds 22-32). The compounds presented here constitute a new class of TTR inhibitors that may hold promise in treating amyloid diseases associated with TTR misfolding.
Novel transthyretin amyloid fibril formation inhibitors: synthesis, biological evaluation, and X-ray structural analysis.,Palaninathan SK, Mohamedmohaideen NN, Orlandini E, Ortore G, Nencetti S, Lapucci A, Rossello A, Freundlich JS, Sacchettini JC PLoS One. 2009 Jul 21;4(7):e6290. PMID:19621084[76]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
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- ↑ Ueno S, Uemichi T, Yorifuji S, Tarui S. A novel variant of transthyretin (Tyr114 to Cys) deduced from the nucleotide sequences of gene fragments from familial amyloidotic polyneuropathy in Japanese sibling cases. Biochem Biophys Res Commun. 1990 May 31;169(1):143-7. PMID:2161654
- ↑ Ueno S, Uemichi T, Takahashi N, Soga F, Yorifuji S, Tarui S. Two novel variants of transthyretin identified in Japanese cases with familial amyloidotic polyneuropathy: transthyretin (Glu42 to Gly) and transthyretin (Ser50 to Arg). Biochem Biophys Res Commun. 1990 Jun 29;169(3):1117-21. PMID:2363717
- ↑ Saeki Y, Ueno S, Yorifuji S, Sugiyama Y, Ide Y, Matsuzawa Y. New mutant gene (transthyretin Arg 58) in cases with hereditary polyneuropathy detected by non-isotope method of single-strand conformation polymorphism analysis. Biochem Biophys Res Commun. 1991 Oct 15;180(1):380-5. PMID:1656975
- ↑ Ii S, Minnerath S, Ii K, Dyck PJ, Sommer SS. Two-tiered DNA-based diagnosis of transthyretin amyloidosis reveals two novel point mutations. Neurology. 1991 Jun;41(6):893-8. PMID:2046936
- ↑ Saraiva MJ, Almeida Mdo R, Sherman W, Gawinowicz M, Costa P, Costa PP, Goodman DS. A new transthyretin mutation associated with amyloid cardiomyopathy. Am J Hum Genet. 1992 May;50(5):1027-30. PMID:1570831
- ↑ Murakami T, Maeda S, Yi S, Ikegawa S, Kawashima E, Onodera S, Shimada K, Araki S. A novel transthyretin mutation associated with familial amyloidotic polyneuropathy. Biochem Biophys Res Commun. 1992 Jan 31;182(2):520-6. PMID:1734866
- ↑ Murakami T, Atsumi T, Maeda S, Tanase S, Ishikawa K, Mita S, Kumamoto T, Araki S, Ando M. A novel transthyretin mutation at position 30 (Leu for Val) associated with familial amyloidotic polyneuropathy. Biochem Biophys Res Commun. 1992 Aug 31;187(1):397-403. PMID:1520326
- ↑ Nishi H, Kimura A, Harada H, Hayashi Y, Nakamura M, Sasazuki T. Novel variant transthyretin gene (Ser50 to Ile) in familial cardiac amyloidosis. Biochem Biophys Res Commun. 1992 Aug 31;187(1):460-6. PMID:1520336
- ↑ Jones LA, Skare JC, Cohen AS, Harding JA, Milunsky A, Skinner M. Familial amyloidotic polyneuropathy: a new transthyretin position 30 mutation (alanine for valine) in a family of German descent. Clin Genet. 1992 Feb;41(2):70-3. PMID:1544214
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- ↑ Shiomi K, Nakazato M, Matsukura S, Ohnishi A, Hatanaka H, Tsuji S, Murai Y, Kojima M, Kangawa K, Matsuo H. A basic transthyretin variant (Glu61-->Lys) causes familial amyloidotic polyneuropathy: protein and DNA sequencing and PCR-induced mutation restriction analysis. Biochem Biophys Res Commun. 1993 Aug 16;194(3):1090-6. PMID:8352764 doi:http://dx.doi.org/S0006-291X(83)71933-9
- ↑ Hesse A, Altland K, Linke RP, Almeida MR, Saraiva MJ, Steinmetz A, Maisch B. Cardiac amyloidosis: a review and report of a new transthyretin (prealbumin) variant. Br Heart J. 1993 Aug;70(2):111-5. PMID:8038017
- ↑ Almeida Mdo R, Lopez-Andreu F, Munar-Ques M, Costa PP, Saraiva MJ. Transthyretin ALA 71: a new transthyretin variant in a Spanish family with familial amyloidotic polyneuropathy. Hum Mutat. 1993;2(5):420-1. PMID:8257997 doi:http://dx.doi.org/10.1002/humu.1380020516
- ↑ Benson MD 2nd, Turpin JC, Lucotte G, Zeldenrust S, LeChevalier B, Benson MD. A transthyretin variant (alanine 71) associated with familial amyloidotic polyneuropathy in a French family. J Med Genet. 1993 Feb;30(2):120-2. PMID:8095302
- ↑ Skare JC, Milunsky JM, Milunsky A, Skare IB, Cohen AS, Skinner M. A new transthyretin variant from a patient with familial amyloidotic polyneuropathy has asparagine substituted for histidine at position 90. Clin Genet. 1991 Jan;39(1):6-12. PMID:1997217
- ↑ Jacobson DR, Buxbaum JN. A double-variant transthyretin allele (Ser 6, Ile 33) in the Israeli patient "SKO" with familial amyloidotic polyneuropathy. Hum Mutat. 1994;3(3):254-60. PMID:8019560 doi:http://dx.doi.org/10.1002/humu.1380030313
- ↑ Jacobson DR, Gertz MA, Buxbaum JN. Transthyretin VAL107, a new variant associated with familial cardiac and neuropathic amyloidosis. Hum Mutat. 1994;3(4):399-401. PMID:8081397 doi:http://dx.doi.org/10.1002/humu.1380030414
- ↑ Uemichi T, Gertz MA, Benson MD. Amyloid polyneuropathy in two German-American families: a new transthyretin variant (Val 107). J Med Genet. 1994 May;31(5):416-7. PMID:7914929
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- ↑ Booth DR, Tan SY, Hawkins PN, Pepys MB, Frustaci A. A novel variant of transthyretin, 59Thr-->Lys, associated with autosomal dominant cardiac amyloidosis in an Italian family. Circulation. 1995 Feb 15;91(4):962-7. PMID:7850982
- ↑ Vidal R, Garzuly F, Budka H, Lalowski M, Linke RP, Brittig F, Frangione B, Wisniewski T. Meningocerebrovascular amyloidosis associated with a novel transthyretin mis-sense mutation at codon 18 (TTRD 18G) Am J Pathol. 1996 Feb;148(2):361-6. PMID:8579098
- ↑ Petersen RB, Goren H, Cohen M, Richardson SL, Tresser N, Lynn A, Gali M, Estes M, Gambetti P. Transthyretin amyloidosis: a new mutation associated with dementia. Ann Neurol. 1997 Mar;41(3):307-13. PMID:9066351 doi:10.1002/ana.410410305
- ↑ Jacobson DR, Pan T, Kyle RA, Buxbaum JN. Transthyretin ILE20, a new variant associated with late-onset cardiac amyloidosis. Hum Mutat. 1997;9(1):83-5. PMID:8990019 doi:<83::AID-HUMU19>3.0.CO;2-L 10.1002/(SICI)1098-1004(1997)9:1<83::AID-HUMU19>3.0.CO;2-L
- ↑ Patrosso MC, Salvi F, De Grandis D, Vezzoni P, Jacobson DR, Ferlini A. Novel transthyretin missense mutation (Thr34) in an Italian family with hereditary amyloidosis. Am J Med Genet. 1998 May 1;77(2):135-8. PMID:9605286
- ↑ Dupuy O, Bletry O, Blanc AS, Droz D, Viemont M, Delpech M, Grateau G. A novel variant of transthyretin (Glu42Asp) associated with sporadic late-onset cardiac amyloidosis. Amyloid. 1998 Dec;5(4):285-7. PMID:10036587
- ↑ Misrahi AM, Plante V, Lalu T, Serre L, Adams D, Lacroix DC, Said G. New transthyretin variants SER 91 and SER 116 associated with familial amyloidotic polyneuropathy. Mutations in brief no. 151. Online. Hum Mutat. 1998;12(1):71. PMID:10627135 doi:<71::AID-HUMU15>3.0.CO;2-7 10.1002/(SICI)1098-1004(1998)12:1<71::AID-HUMU15>3.0.CO;2-7
- ↑ Booth DR, Gillmore JD, Persey MR, Booth SE, Cafferty KD, Tennent GA, Madhoo S, Cochrane SW, Whitehead TC, Pasvol G, Hawkins PN. Transthyretin Ile73Val is associated with familial amyloidotic polyneuropathy in a Bangladeshi family. Mutations in brief no. 158. Online. Hum Mutat. 1998;12(2):135. PMID:10694917 doi:<135::AID-HUMU10>3.0.CO;2-6 10.1002/(SICI)1098-1004(1998)12:2<135::AID-HUMU10>3.0.CO;2-6
- ↑ Theberge R, Connors L, Skare J, Skinner M, Falk RH, Costello CE. A new amyloidogenic transthyretin variant (Val122Ala) found in a compound heterozygous patient. Amyloid. 1999 Mar;6(1):54-8. PMID:10211412
- ↑ Connors LH, Theberge R, Skare J, Costello CE, Falk RH, Skinner M. A new transthyretin variant (Ser23Asn) associated with familial amyloidosis in a Portuguese patient. Amyloid. 1999 Jun;6(2):114-8. PMID:10439117
- ↑ Tachibana N, Tokuda T, Yoshida K, Taketomi T, Nakazato M, Li YF, Masuda Y, Ikeda S. Usefulness of MALDI/TOF mass spectrometry of immunoprecipitated serum variant transthyretin in the diagnosis of familial amyloid polyneuropathy. Amyloid. 1999 Dec;6(4):282-8. PMID:10611950
- ↑ Brett M, Persey MR, Reilly MM, Revesz T, Booth DR, Booth SE, Hawkins PN, Pepys MB, Morgan-Hughes JA. Transthyretin Leu12Pro is associated with systemic, neuropathic and leptomeningeal amyloidosis. Brain. 1999 Feb;122 ( Pt 2):183-90. PMID:10071047
- ↑ Nakamura M, Yamashita T, Ando Y, Hamidi Asl K, Tashima K, Ohlsson P, Kususe Y, Benson MD. Identification of a new transthyretin variant (Ile49) in familial amyloidotic polyneuropathy using electrospray ionization mass spectrometry and nonisotopic RNase cleavage assay. Hum Hered. 1999 Jul;49(4):186-9. PMID:10436378
- ↑ Nakamura M, Hamidi Asl K, Benson MD. A novel variant of transthyretin (Glu89Lys) associated with familial amyloidotic polyneuropathy. Amyloid. 2000 Mar;7(1):46-50. PMID:10842705
- ↑ Janunger T, Anan I, Holmgren G, Lovheim O, Ohlsson PI, Suhr OB, Tashima K. Heart failure caused by a novel amyloidogenic mutation of the transthyretin gene: ATTR Ala45Ser. Amyloid. 2000 Jun;7(2):137-40. PMID:10842718
- ↑ de Carvalho M, Moreira P, Evangelista T, Ducla-Soares JL, Bento M, Fernandes R, Saraiva MJ. New transthyretin mutation V28M in a Portuguese kindred with amyloid polyneuropathy. Muscle Nerve. 2000 Jul;23(7):1016-21. PMID:10882995
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- ↑ Yazaki M, Varga J, Dyck PJ, Benson MD. A new transthyretin variant Leu55Gln in a patient with systemic amyloidosis. Amyloid. 2002 Dec;9(4):268-71. PMID:12557757
- ↑ Lim A, Prokaeva T, McComb ME, O'Connor PB, Theberge R, Connors LH, Skinner M, Costello CE. Characterization of transthyretin variants in familial transthyretin amyloidosis by mass spectrometric peptide mapping and DNA sequence analysis. Anal Chem. 2002 Feb 15;74(4):741-51. PMID:11866053
- ↑ Lachmann HJ, Booth DR, Booth SE, Bybee A, Gilbertson JA, Gillmore JD, Pepys MB, Hawkins PN. Misdiagnosis of hereditary amyloidosis as AL (primary) amyloidosis. N Engl J Med. 2002 Jun 6;346(23):1786-91. PMID:12050338 doi:10.1056/NEJMoa013354
- ↑ Blevins G, Macaulay R, Harder S, Fladeland D, Yamashita T, Yazaki M, Hamidi Asl K, Benson MD, Donat JR. Oculoleptomeningeal amyloidosis in a large kindred with a new transthyretin variant Tyr69His. Neurology. 2003 May 27;60(10):1625-30. PMID:12771253
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- ↑ Bergen HR 3rd, Zeldenrust SR, Butz ML, Snow DS, Dyck PJ, Dyck PJ, Klein CJ, O'Brien JF, Thibodeau SN, Muddiman DC. Identification of transthyretin variants by sequential proteomic and genomic analysis. Clin Chem. 2004 Sep;50(9):1544-52. Epub 2004 Jun 24. PMID:15217993 doi:10.1373/clinchem.2004.033266
- ↑ Rosenzweig M, Skinner M, Prokaeva T, Theberge R, Costello C, Drachman BM, Connors LH. A new transthyretin variant (Glu61Gly) associated with cardiomyopathy. Amyloid. 2007 Mar;14(1):65-71. PMID:17453626 doi:775700621
- ↑ Bergstrom J, Patrosso MC, Colussi G, Salvadore M, Penco S, Lando G, Marocchi A, Ueda A, Nakamura M, Ando Y. A novel type of familial transthyretin amyloidosis, ATTR Asn124Ser, with co-localization of kappa light chains. Amyloid. 2007 Jun;14(2):141-5. PMID:17577687 doi:779687106
- ↑ Altland K, Benson MD, Costello CE, Ferlini A, Hazenberg BP, Hund E, Kristen AV, Linke RP, Merlini G, Salvi F, Saraiva MJ, Singer R, Skinner M, Winter P. Genetic microheterogeneity of human transthyretin detected by IEF. Electrophoresis. 2007 Jun;28(12):2053-64. PMID:17503405 doi:10.1002/elps.200600840
- ↑ Augustin S, Llige D, Andreu A, Gonzalez A, Genesca J. Familial amyloidosis in a large Spanish kindred resulting from a D38V mutation in the transthyretin gene. Eur J Clin Invest. 2007 Aug;37(8):673-8. PMID:17635579 doi:ECI1836
- ↑ Moses AC, Rosen HN, Moller DE, Tsuzaki S, Haddow JE, Lawlor J, Liepnieks JJ, Nichols WC, Benson MD. A point mutation in transthyretin increases affinity for thyroxine and produces euthyroid hyperthyroxinemia. J Clin Invest. 1990 Dec;86(6):2025-33. PMID:1979335 doi:http://dx.doi.org/10.1172/JCI114938
- ↑ Murakami T, Tachibana S, Endo Y, Kawai R, Hara M, Tanase S, Ando M. Familial carpal tunnel syndrome due to amyloidogenic transthyretin His 114 variant. Neurology. 1994 Feb;44(2):315-8. PMID:8309582
- ↑ Herbert J, Wilcox JN, Pham KT, Fremeau RT Jr, Zeviani M, Dwork A, Soprano DR, Makover A, Goodman DS, Zimmerman EA, et al.. Transthyretin: a choroid plexus-specific transport protein in human brain. The 1986 S. Weir Mitchell award. Neurology. 1986 Jul;36(7):900-11. PMID:3714052
- ↑ Palaninathan SK, Mohamedmohaideen NN, Orlandini E, Ortore G, Nencetti S, Lapucci A, Rossello A, Freundlich JS, Sacchettini JC. Novel transthyretin amyloid fibril formation inhibitors: synthesis, biological evaluation, and X-ray structural analysis. PLoS One. 2009 Jul 21;4(7):e6290. PMID:19621084 doi:10.1371/journal.pone.0006290
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