View source for 1tnr


==CRYSTAL STRUCTURE OF THE SOLUBLE HUMAN 55 KD TNF RECEPTOR-HUMAN TNF-BETA COMPLEX: IMPLICATIONS FOR TNF RECEPTOR ACTIVATION==
<StructureSection load='1tnr' size='340' side='right'caption='[[1tnr]], [[Resolution|resolution]] 2.85&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1tnr]] is a 2 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=1TNR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1TNR FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.85&#8491;</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1tnr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1tnr OCA], [https://pdbe.org/1tnr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1tnr RCSB], [https://www.ebi.ac.uk/pdbsum/1tnr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1tnr ProSAT]</span></td></tr>
</table>
== Disease ==
[https://www.uniprot.org/uniprot/TNFB_HUMAN TNFB_HUMAN] Genetic variations in LTA are a cause of susceptibility psoriatic arthritis (PSORAS) [MIM:[https://omim.org/entry/607507 607507]. PSORAS is an inflammatory, seronegative arthritis associated with psoriasis. It is a heterogeneous disorder ranging from a mild, non-destructive disease to a severe, progressive, erosive arthropathy. Five types of psoriatic arthritis have been defined: asymmetrical oligoarthritis characterized by primary involvement of the small joints of the fingers or toes; asymmetrical arthritis which involves the joints of the extremities; symmetrical polyarthritis characterized by a rheumatoidlike pattern that can involve hands, wrists, ankles, and feet; arthritis mutilans, which is a rare but deforming and destructive condition; arthritis of the sacroiliac joints and spine (psoriatic spondylitis).
== Function ==
[https://www.uniprot.org/uniprot/TNFB_HUMAN TNFB_HUMAN] Cytokine that in its homotrimeric form binds to TNFRSF1A/TNFR1, TNFRSF1B/TNFBR and TNFRSF14/HVEM. In its heterotrimeric form with LTB binds to TNFRSF3/LTBR. Lymphotoxin is produced by lymphocytes and cytotoxic for a wide range of tumor cells in vitro and in vivo.
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/tn/1tnr_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</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=1tnr ConSurf].
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== Publication Abstract from PubMed ==
The X-ray crystal structure of the complex of the extracellular domain of the human 55 kd tumor necrosis factor (TNF) receptor with human TNF beta has been determined at 2.85 A resolution. The complex has three receptor molecules bound symmetrically to one TNF beta trimer. The receptor fragment, a very elongated end to end assembly of four similar folding domains, binds in the groove between two adjacent TNF beta subunits. The structure of the complex defines the orientation of the ligand with respect to the cell membrane and provides a model for TNF receptor activation. The novel fold of the TNF receptor structure is likely to be representative of the nerve growth factor (NGF)/TNF receptor family as a whole.

Crystal structure of the soluble human 55 kd TNF receptor-human TNF beta complex: implications for TNF receptor activation.,Banner DW, D'Arcy A, Janes W, Gentz R, Schoenfeld HJ, Broger C, Loetscher H, Lesslauer W Cell. 1993 May 7;73(3):431-45. PMID:8387891<ref>PMID:8387891</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 1tnr" style="background-color:#fffaf0;"></div>

==See Also==
*[[Tumor necrosis factor 3D structures|Tumor necrosis factor 3D structures]]
*[[Tumor necrosis factor receptor 3D structures|Tumor necrosis factor receptor 3D structures]]
== References ==
<references/>
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Banner DW]]