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3l9j

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Revision as of 06:43, 31 January 2018

Selection of a novel highly specific TNFalpha antagonist: Insight from the crystal structure of the antagonist-TNFalpha complex

Structural highlights

3l9j is a 2 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

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

Inhibition of tumor necrosis factor alpha (TNFalpha) is a favorable way of treating several important diseases such as rheumatoid arthritis, Crohn disease, and psoriasis. Therefore, an extensive range of TNFalpha inhibitory proteins, most of them based upon an antibody scaffold, has been developed and used with variable success as therapeutics. We have developed a novel technology platform using C-type lectins as a vehicle for the creation of novel trimeric therapeutic proteins with increased avidity and unique properties as compared with current protein therapeutics. We chose human TNFalpha as a test target to validate this new technology because of the extensive experience available with protein-based TNFalpha antagonists. Here, we present a novel and highly specific TNFalpha antagonist developed using this technology. Furthermore, we have solved the three-dimensional structure of the antagonist-TNFalpha complex by x-ray crystallography, and this structure is presented here. The structure has given us a unique insight into how the selection procedure works at a molecular level. Surprisingly little change is observed in the C-type lectin-like domain structure outside of the randomized regions, whereas a substantial change is observed within the randomized loops. Thus, the overall integrity of the C-type lectin-like domain is maintained, whereas specificity and binding affinity are changed by the introduction of a number of specific contacts with TNFalpha.

Selection of a novel and highly specific tumor necrosis factor alpha (TNFalpha) antagonist: insight from the crystal structure of the antagonist-TNFalpha complex.,Byla P, Andersen MH, Holtet TL, Jacobsen H, Munch M, Gad HH, Thogersen HC, Hartmann R J Biol Chem. 2010 Apr 16;285(16):12096-100. Epub 2010 Feb 23. PMID:20179326^[3]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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
↑ Byla P, Andersen MH, Holtet TL, Jacobsen H, Munch M, Gad HH, Thogersen HC, Hartmann R. Selection of a novel and highly specific tumor necrosis factor alpha (TNFalpha) antagonist: insight from the crystal structure of the antagonist-TNFalpha complex. J Biol Chem. 2010 Apr 16;285(16):12096-100. Epub 2010 Feb 23. PMID:20179326 doi:10.1074/jbc.M109.063305

1 Structural highlights
2 Disease
3 Function
4 Evolutionary Conservation
5 Publication Abstract from PubMed
6 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3l9j"

@@ Line 1: / Line 1: @@
 ==Selection of a novel highly specific TNFalpha antagonist: Insight from the crystal structure of the antagonist-TNFalpha complex==
 <StructureSection load='3l9j' size='340' side='right' caption='[[3l9j]], [[Resolution|resolution]] 2.10&Aring;' scene=''>
@@ Line 4: / Line 5: @@
 <table><tr><td colspan='2'>[[3l9j]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3L9J OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3L9J FirstGlance]. <br>
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3l9j FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3l9j OCA], [http://pdbe.org/3l9j PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3l9j RCSB], [http://www.ebi.ac.uk/pdbsum/3l9j PDBsum]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3l9j FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3l9j OCA], [http://pdbe.org/3l9j PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3l9j RCSB], [http://www.ebi.ac.uk/pdbsum/3l9j PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3l9j ProSAT]</span></td></tr>
 </table>
 == Disease ==
@@ Line 14: / Line 15: @@
 Check<jmol>
   <jmolCheckbox>
-    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/l9/3l9j_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/l9/3l9j_consurf.spt"</scriptWhenChecked>
     <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
@@ Line 29: / Line 30: @@
 </div>
 <div class="pdbe-citations 3l9j" style="background-color:#fffaf0;"></div>
-==See Also==
-*[[Tumor necrosis factor|Tumor necrosis factor]]
 == References ==
 <references/>

3l9j

From Proteopedia

Revision as of 06:43, 31 January 2018

Selection of a novel highly specific TNFalpha antagonist: Insight from the crystal structure of the antagonist-TNFalpha complex

Structural highlights

Disease

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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