5ttr

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{{STRUCTURE_5ttr| PDB=5ttr | SCENE= }}
 
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===LEU 55 PRO TRANSTHYRETIN CRYSTAL STRUCTURE===
 
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{{ABSTRACT_PUBMED_9733771}}
 
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==Disease==
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==LEU 55 PRO TRANSTHYRETIN CRYSTAL STRUCTURE==
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[[http://www.uniprot.org/uniprot/TTHY_HUMAN TTHY_HUMAN]] Defects in TTR are the cause of amyloidosis transthyretin-related (AMYL-TTR) [MIM:[http://omim.org/entry/105210 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.<ref>PMID:11243784</ref><ref>PMID:15735344</ref><ref>PMID:19167329</ref><ref>PMID:3818577</ref><ref>PMID:3022108</ref><ref>PMID:6651852</ref><ref>PMID:6583672</ref><ref>PMID:3135807</ref><ref>PMID:1517749</ref><ref>PMID:1932142</ref><ref>PMID:7923855</ref><ref>PMID:8382610</ref><ref>PMID:8428915</ref><ref>PMID:9733771</ref><ref>PMID:12403615</ref><ref>PMID:16185074</ref><ref>PMID:16627944</ref><ref>PMID:6487335</ref><ref>PMID:3722385</ref><ref>PMID:2891727</ref><ref>PMID:2161654</ref><ref>PMID:2363717</ref><ref>PMID:1656975</ref><ref>PMID:2046936</ref><ref>PMID:1570831</ref><ref>PMID:1734866</ref><ref>PMID:1520326</ref><ref>PMID:1520336</ref><ref>PMID:1544214</ref><ref>PMID:1351039</ref><ref>PMID:1301926</ref><ref>PMID:1362222</ref><ref>PMID:1436517</ref><ref>PMID:8352764</ref><ref>PMID:8038017</ref><ref>PMID:8257997</ref><ref>PMID:8095302</ref><ref>PMID:1997217</ref><ref>PMID:8019560</ref><ref>PMID:8081397</ref><ref>PMID:7914929</ref><ref>PMID:8133316</ref><ref>PMID:7910950</ref><ref>PMID:7655883</ref><ref>PMID:7850982</ref><ref>PMID:8579098</ref><ref>PMID:9066351</ref><ref>PMID:8990019</ref><ref>PMID:9605286</ref><ref>PMID:10036587</ref><ref>PMID:10627135</ref><ref>PMID:10694917</ref><ref>PMID:10211412</ref><ref>PMID:10439117</ref><ref>PMID:10611950</ref><ref>PMID:10071047</ref><ref>PMID:10436378</ref><ref>PMID:10842705</ref><ref>PMID:10842718</ref><ref>PMID:10882995</ref><ref>PMID:11445644</ref><ref>PMID:12557757</ref><ref>PMID:11866053</ref><ref>PMID:12050338</ref><ref>PMID:12771253</ref><ref>PMID:15214015</ref><ref>PMID:15478468</ref><ref>PMID:15217993</ref><ref>PMID:17453626</ref><ref>PMID:17577687</ref><ref>PMID:17503405</ref><ref>PMID:17635579</ref> Defects in TTR are a cause of hyperthyroxinemia dystransthyretinemic euthyroidal (HTDE) [MIM:[http://omim.org/entry/145680 145680]]. It is a condition characterized by elevation of total and free thyroxine in healthy, euthyroid persons without detectable binding protein abnormalities.<ref>PMID:1979335</ref> Defects in TTR are a cause of carpal tunnel syndrome type 1 (CTS1) [MIM:[http://omim.org/entry/115430 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.<ref>PMID:8309582</ref>
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<StructureSection load='5ttr' size='340' side='right'caption='[[5ttr]], [[Resolution|resolution]] 2.70&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[5ttr]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5TTR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=5TTR FirstGlance]. <br>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.7&#8491;</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=5ttr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5ttr OCA], [https://pdbe.org/5ttr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=5ttr RCSB], [https://www.ebi.ac.uk/pdbsum/5ttr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=5ttr ProSAT]</span></td></tr>
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</table>
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== Disease ==
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[https://www.uniprot.org/uniprot/TTHY_HUMAN TTHY_HUMAN] Defects in TTR are the cause of amyloidosis transthyretin-related (AMYL-TTR) [MIM:[https://omim.org/entry/105210 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.<ref>PMID:11243784</ref> <ref>PMID:15735344</ref> <ref>PMID:19167329</ref> <ref>PMID:3818577</ref> <ref>PMID:3022108</ref> <ref>PMID:6651852</ref> <ref>PMID:6583672</ref> <ref>PMID:3135807</ref> <ref>PMID:1517749</ref> <ref>PMID:1932142</ref> <ref>PMID:7923855</ref> <ref>PMID:8382610</ref> <ref>PMID:8428915</ref> <ref>PMID:9733771</ref> <ref>PMID:12403615</ref> <ref>PMID:16185074</ref> <ref>PMID:16627944</ref> <ref>PMID:6487335</ref> <ref>PMID:3722385</ref> <ref>PMID:2891727</ref> <ref>PMID:2161654</ref> <ref>PMID:2363717</ref> <ref>PMID:1656975</ref> <ref>PMID:2046936</ref> <ref>PMID:1570831</ref> <ref>PMID:1734866</ref> <ref>PMID:1520326</ref> <ref>PMID:1520336</ref> <ref>PMID:1544214</ref> <ref>PMID:1351039</ref> <ref>PMID:1301926</ref> <ref>PMID:1362222</ref> <ref>PMID:1436517</ref> <ref>PMID:8352764</ref> <ref>PMID:8038017</ref> <ref>PMID:8257997</ref> <ref>PMID:8095302</ref> <ref>PMID:1997217</ref> <ref>PMID:8019560</ref> <ref>PMID:8081397</ref> <ref>PMID:7914929</ref> <ref>PMID:8133316</ref> <ref>PMID:7910950</ref> <ref>PMID:7655883</ref> <ref>PMID:7850982</ref> <ref>PMID:8579098</ref> <ref>PMID:9066351</ref> <ref>PMID:8990019</ref> <ref>PMID:9605286</ref> <ref>PMID:10036587</ref> <ref>PMID:10627135</ref> <ref>PMID:10694917</ref> <ref>PMID:10211412</ref> <ref>PMID:10439117</ref> <ref>PMID:10611950</ref> <ref>PMID:10071047</ref> <ref>PMID:10436378</ref> <ref>PMID:10842705</ref> <ref>PMID:10842718</ref> <ref>PMID:10882995</ref> <ref>PMID:11445644</ref> <ref>PMID:12557757</ref> <ref>PMID:11866053</ref> <ref>PMID:12050338</ref> <ref>PMID:12771253</ref> <ref>PMID:15214015</ref> <ref>PMID:15478468</ref> <ref>PMID:15217993</ref> <ref>PMID:17453626</ref> <ref>PMID:17577687</ref> <ref>PMID:17503405</ref> <ref>PMID:17635579</ref> Defects in TTR are a cause of hyperthyroxinemia dystransthyretinemic euthyroidal (HTDE) [MIM:[https://omim.org/entry/145680 145680]. It is a condition characterized by elevation of total and free thyroxine in healthy, euthyroid persons without detectable binding protein abnormalities.<ref>PMID:1979335</ref> Defects in TTR are a cause of carpal tunnel syndrome type 1 (CTS1) [MIM:[https://omim.org/entry/115430 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.<ref>PMID:8309582</ref>
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== Function ==
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[https://www.uniprot.org/uniprot/TTHY_HUMAN TTHY_HUMAN] Thyroid hormone-binding protein. Probably transports thyroxine from the bloodstream to the brain.<ref>PMID:3714052</ref>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/tt/5ttr_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=5ttr ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The x-ray crystal structure of the amyloidogenic Leu55 --&gt; Pro transthyretin (TTR) variant, implicated as the causative agent in early-onset familial amyloidotic polyneuropathy (Jacobson, D. R., McFarlin, D. E., Kane, I., and Buxbaum, J. N. (1992) Hum. Genet. 89, 353-356), has been solved by molecular replacement, refined at 2.7 A to a Rcryst value of 0.190 (Fobs &gt; 2.0sigma), and compared with wild-type transthyretin to understand the molecular mechanism(s) involved in amyloidogenesis. Leu55 --&gt; Pro TTR crystallizes in space group C2, with eight monomers in the asymmetric unit, and the observed packing contacts are considerably different from those described for the wild-type protein. Refinement of the crystal structure shows that the proline for leucine substitution disrupts the hydrogen bonds between strands D and A, resulting in different interface contacts. Based on the assumption that the observed packing contacts may be significant for amyloidogenesis, a model for the TTR amyloid is proposed. It consists of a tubular structure with inner and outer diameters approximately of 30 and 100 A and four monomers per cross-section.
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==Function==
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The crystal structure of amyloidogenic Leu55 --&gt; Pro transthyretin variant reveals a possible pathway for transthyretin polymerization into amyloid fibrils.,Sebastiao MP, Saraiva MJ, Damas AM J Biol Chem. 1998 Sep 18;273(38):24715-22. PMID:9733771<ref>PMID:9733771</ref>
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[[http://www.uniprot.org/uniprot/TTHY_HUMAN TTHY_HUMAN]] Thyroid hormone-binding protein. Probably transports thyroxine from the bloodstream to the brain.<ref>PMID:3714052</ref>
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==About this Structure==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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[[5ttr]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5TTR OCA].
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</div>
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<div class="pdbe-citations 5ttr" style="background-color:#fffaf0;"></div>
==See Also==
==See Also==
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*[[Transthyretin|Transthyretin]]
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*[[Transthyretin 3D structures|Transthyretin 3D structures]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:009733771</ref><references group="xtra"/><references/>
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__TOC__
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Damas, A M.]]
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[[Category: Large Structures]]
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[[Category: Saraiva, M J.]]
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[[Category: Damas AM]]
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[[Category: Sebastiao, M P.]]
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[[Category: Saraiva MJ]]
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[[Category: Amyloid]]
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[[Category: Sebastiao MP]]
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[[Category: Fap]]
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[[Category: Thyroxine]]
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[[Category: Transport]]
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[[Category: Transthyretin]]
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Current revision

LEU 55 PRO TRANSTHYRETIN CRYSTAL STRUCTURE

PDB ID 5ttr

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