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| - | [[Image:1tnf.gif|left|200px]] | |
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| - | <!--
| + | ==THE STRUCTURE OF TUMOR NECROSIS FACTOR-ALPHA AT 2.6 ANGSTROMS RESOLUTION. IMPLICATIONS FOR RECEPTOR BINDING== |
| - | The line below this paragraph, containing "STRUCTURE_1tnf", creates the "Structure Box" on the page.
| + | <StructureSection load='1tnf' size='340' side='right'caption='[[1tnf]], [[Resolution|resolution]] 2.60Å' scene=''> |
| - | You may change the PDB parameter (which sets the PDB file loaded into the applet)
| + | == Structural highlights == |
| - | or the SCENE parameter (which sets the initial scene displayed when the page is loaded), | + | <table><tr><td colspan='2'>[[1tnf]] is a 3 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=1TNF OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1TNF FirstGlance]. <br> |
| - | or leave the SCENE parameter empty for the default display. | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.6Å</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=1tnf FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1tnf OCA], [https://pdbe.org/1tnf PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1tnf RCSB], [https://www.ebi.ac.uk/pdbsum/1tnf PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1tnf ProSAT]</span></td></tr> |
| - | {{STRUCTURE_1tnf| PDB=1tnf | SCENE= }}
| + | </table> |
| | + | == Disease == |
| | + | [https://www.uniprot.org/uniprot/TNFA_HUMAN TNFA_HUMAN] Genetic variations in TNF 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/TNFA_HUMAN TNFA_HUMAN] Cytokine that binds to TNFRSF1A/TNFR1 and TNFRSF1B/TNFBR. It is mainly secreted by macrophages and can induce cell death of certain tumor cell lines. It is potent pyrogen causing fever by direct action or by stimulation of interleukin-1 secretion and is implicated in the induction of cachexia, Under certain conditions it can stimulate cell proliferation and induce cell differentiation.<ref>PMID:16829952</ref> The TNF intracellular domain (ICD) form induces IL12 production in dendritic cells.<ref>PMID:16829952</ref> |
| | + | == 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/1tnf_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=1tnf ConSurf]. |
| | + | <div style="clear:both"></div> |
| | + | <div style="background-color:#fffaf0;"> |
| | + | == Publication Abstract from PubMed == |
| | + | The three-dimensional structure of tumor necrosis factor (TNF-alpha), a protein hormone secreted by macrophages, has been determined at 2.6 A resolution by x-ray crystallography. Phases were determined by multiple isomorphous replacement using data collected from five heavy atom derivatives. The multiple isomorphous replacement phases were further improved by real space symmetry averaging, exploiting the noncrystallographic 3-fold symmetry of the TNF-alpha trimer. An atomic model corresponding to the known amino acid sequence of TNF-alpha was readily built into the electron density map calculated with these improved phases. The 17,350-dalton monomer forms an elongated, antiparallel beta-pleated sheet sandwich with a "jelly-roll" topology. Three monomers associate intimately about a 3-fold axis of symmetry to form a compact bell-shaped trimer. Examination of the model and comparison to known protein structures reveals striking structural homology to several viral coat proteins, particularly satellite tobacco necrosis virus. Locations of residues conserved between TNF-alpha and lymphotoxin (TNF-beta, a related cytokine known to bind to the same receptors as TNF-alpha) suggest that lymphotoxin, like TNF-alpha, binds to the receptor as a trimer and that the general site of interaction with the receptor is at the "base" of the trimer. |
| | | | |
| - | '''THE STRUCTURE OF TUMOR NECROSIS FACTOR-ALPHA AT 2.6 ANGSTROMS RESOLUTION. IMPLICATIONS FOR RECEPTOR BINDING'''
| + | The structure of tumor necrosis factor-alpha at 2.6 A resolution. Implications for receptor binding.,Eck MJ, Sprang SR J Biol Chem. 1989 Oct 15;264(29):17595-605. PMID:2551905<ref>PMID:2551905</ref> |
| - | | + | |
| - | | + | |
| - | ==Overview==
| + | |
| - | The three-dimensional structure of tumor necrosis factor (TNF-alpha), a protein hormone secreted by macrophages, has been determined at 2.6 A resolution by x-ray crystallography. Phases were determined by multiple isomorphous replacement using data collected from five heavy atom derivatives. The multiple isomorphous replacement phases were further improved by real space symmetry averaging, exploiting the noncrystallographic 3-fold symmetry of the TNF-alpha trimer. An atomic model corresponding to the known amino acid sequence of TNF-alpha was readily built into the electron density map calculated with these improved phases. The 17,350-dalton monomer forms an elongated, antiparallel beta-pleated sheet sandwich with a "jelly-roll" topology. Three monomers associate intimately about a 3-fold axis of symmetry to form a compact bell-shaped trimer. Examination of the model and comparison to known protein structures reveals striking structural homology to several viral coat proteins, particularly satellite tobacco necrosis virus. Locations of residues conserved between TNF-alpha and lymphotoxin (TNF-beta, a related cytokine known to bind to the same receptors as TNF-alpha) suggest that lymphotoxin, like TNF-alpha, binds to the receptor as a trimer and that the general site of interaction with the receptor is at the "base" of the trimer. | + | |
| | | | |
| - | ==About this Structure==
| + | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> |
| - | 1TNF is a [[Single protein]] structure of 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=1TNF OCA].
| + | </div> |
| | + | <div class="pdbe-citations 1tnf" style="background-color:#fffaf0;"></div> |
| | | | |
| - | ==Reference== | + | ==See Also== |
| - | The structure of tumor necrosis factor-alpha at 2.6 A resolution. Implications for receptor binding., Eck MJ, Sprang SR, J Biol Chem. 1989 Oct 15;264(29):17595-605. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/2551905 2551905]
| + | *[[Tumor necrosis factor 3D structures|Tumor necrosis factor 3D structures]] |
| | + | == References == |
| | + | <references/> |
| | + | __TOC__ |
| | + | </StructureSection> |
| | [[Category: Homo sapiens]] | | [[Category: Homo sapiens]] |
| - | [[Category: Single protein]] | + | [[Category: Large Structures]] |
| - | [[Category: Eck, M J.]] | + | [[Category: Eck MJ]] |
| - | [[Category: Sprang, S R.]] | + | [[Category: Sprang SR]] |
| - | [[Category: Lymphokine]]
| + | |
| - | ''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 10:09:30 2008''
| + | |
| Structural highlights
Disease
TNFA_HUMAN Genetic variations in TNF are a cause of susceptibility psoriatic arthritis (PSORAS) [MIM: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
TNFA_HUMAN Cytokine that binds to TNFRSF1A/TNFR1 and TNFRSF1B/TNFBR. It is mainly secreted by macrophages and can induce cell death of certain tumor cell lines. It is potent pyrogen causing fever by direct action or by stimulation of interleukin-1 secretion and is implicated in the induction of cachexia, Under certain conditions it can stimulate cell proliferation and induce cell differentiation.[1] The TNF intracellular domain (ICD) form induces IL12 production in dendritic cells.[2]
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
The three-dimensional structure of tumor necrosis factor (TNF-alpha), a protein hormone secreted by macrophages, has been determined at 2.6 A resolution by x-ray crystallography. Phases were determined by multiple isomorphous replacement using data collected from five heavy atom derivatives. The multiple isomorphous replacement phases were further improved by real space symmetry averaging, exploiting the noncrystallographic 3-fold symmetry of the TNF-alpha trimer. An atomic model corresponding to the known amino acid sequence of TNF-alpha was readily built into the electron density map calculated with these improved phases. The 17,350-dalton monomer forms an elongated, antiparallel beta-pleated sheet sandwich with a "jelly-roll" topology. Three monomers associate intimately about a 3-fold axis of symmetry to form a compact bell-shaped trimer. Examination of the model and comparison to known protein structures reveals striking structural homology to several viral coat proteins, particularly satellite tobacco necrosis virus. Locations of residues conserved between TNF-alpha and lymphotoxin (TNF-beta, a related cytokine known to bind to the same receptors as TNF-alpha) suggest that lymphotoxin, like TNF-alpha, binds to the receptor as a trimer and that the general site of interaction with the receptor is at the "base" of the trimer.
The structure of tumor necrosis factor-alpha at 2.6 A resolution. Implications for receptor binding.,Eck MJ, Sprang SR J Biol Chem. 1989 Oct 15;264(29):17595-605. PMID:2551905[3]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Friedmann E, Hauben E, Maylandt K, Schleeger S, Vreugde S, Lichtenthaler SF, Kuhn PH, Stauffer D, Rovelli G, Martoglio B. SPPL2a and SPPL2b promote intramembrane proteolysis of TNFalpha in activated dendritic cells to trigger IL-12 production. Nat Cell Biol. 2006 Aug;8(8):843-8. Epub 2006 Jul 9. PMID:16829952 doi:10.1038/ncb1440
- ↑ Friedmann E, Hauben E, Maylandt K, Schleeger S, Vreugde S, Lichtenthaler SF, Kuhn PH, Stauffer D, Rovelli G, Martoglio B. SPPL2a and SPPL2b promote intramembrane proteolysis of TNFalpha in activated dendritic cells to trigger IL-12 production. Nat Cell Biol. 2006 Aug;8(8):843-8. Epub 2006 Jul 9. PMID:16829952 doi:10.1038/ncb1440
- ↑ Eck MJ, Sprang SR. The structure of tumor necrosis factor-alpha at 2.6 A resolution. Implications for receptor binding. J Biol Chem. 1989 Oct 15;264(29):17595-605. PMID:2551905
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