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3tgx

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Revision as of 14:38, 15 November 2017

IL-21:IL21R complex

Structural highlights

3tgx is a 16 chain structure with sequence from Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	, , , , , ,
Gene:	IL21R, NILR, UNQ3121/PRO10273 (HUMAN), IL21 (HUMAN)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[IL21_HUMAN] Cytokine with immunoregulatory activity. May promote the transition between innate and adaptive immunity. Induces the production of IgG(1) and IgG(3) in B-cells (By similarity). May play a role in proliferation and maturation of natural killer (NK) cells in synergy with IL15. May regulate proliferation of mature B- and T-cells in response to activating stimuli. In synergy with IL15 and IL18 stimulates interferon gamma production in T-cells and NK cells. During T-cell mediated immune response may inhibit dendritic cells (DC) activation and maturation.^[1] ^[2]

Publication Abstract from PubMed

Interleukin (IL) 21 is a class I cytokine, which exerts pleiotropic effects on both innate and adaptive immune responses. It signals through a heterodimeric receptor complex consisting of the IL-21 receptor (IL-21R) and the common gamma chain (gC). A hallmark of the class I cytokine receptors is the class I cytokine receptor signature motif (WSXWS). The exact role of this motif has not been determined yet, however, it has been implicated in diverse functions including ligand binding, receptor internalization, proper folding, and export as well as signal transduction. Furthermore, the WXXW is known to be a consensus sequence for C-mannosylation. Here we present the crystal structure of IL-21 bound to IL-21R and reveal that the WSXWS motif of IL-21R is C-mannosylated on the first tryptophan. We furthermore demonstrate that a sugar chain bridge the two fibronectin domains which constitute the extracellular domain of IL-21R and anchors at the WSXWS motif through an extensive hydrogen bonding network, including the mannosylation. The glycan thus transforms the V-shaped receptor into a A-frame. This finding offers a novel structural explanation of the role of the class I cytokine signature motif.

The crystal structure of the interleukin 21 receptor bound to interleukin 21 reveals that a sugar chain interacting with the WSXWS motif is an integral part of the interleukin 21 receptor.,Hamming OJ, Kang L, Svensson A, Karlsen JL, Rahbek-Nielsen H, Paludan SR, Hjorth SA, Bondensgaard K, Hartmann R J Biol Chem. 2012 Jan 10. PMID:22235133^[3]

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

References

↑ Parrish-Novak J, Dillon SR, Nelson A, Hammond A, Sprecher C, Gross JA, Johnston J, Madden K, Xu W, West J, Schrader S, Burkhead S, Heipel M, Brandt C, Kuijper JL, Kramer J, Conklin D, Presnell SR, Berry J, Shiota F, Bort S, Hambly K, Mudri S, Clegg C, Moore M, Grant FJ, Lofton-Day C, Gilbert T, Rayond F, Ching A, Yao L, Smith D, Webster P, Whitmore T, Maurer M, Kaushansky K, Holly RD, Foster D. Interleukin 21 and its receptor are involved in NK cell expansion and regulation of lymphocyte function. Nature. 2000 Nov 2;408(6808):57-63. PMID:11081504 doi:http://dx.doi.org/10.1038/35040504
↑ Strengell M, Julkunen I, Matikainen S. IFN-alpha regulates IL-21 and IL-21R expression in human NK and T cells. J Leukoc Biol. 2004 Aug;76(2):416-22. Epub 2004 Jun 3. PMID:15178704 doi:http://dx.doi.org/10.1189/jlb.1003488
↑ Hamming OJ, Kang L, Svensson A, Karlsen JL, Rahbek-Nielsen H, Paludan SR, Hjorth SA, Bondensgaard K, Hartmann R. The crystal structure of the interleukin 21 receptor bound to interleukin 21 reveals that a sugar chain interacting with the WSXWS motif is an integral part of the interleukin 21 receptor. J Biol Chem. 2012 Jan 10. PMID:22235133 doi:10.1074/jbc.M111.311084

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 See Also
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

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

@@ Line 4: / Line 4: @@
 == Structural highlights ==
 <table><tr><td colspan='2'>[[3tgx]] is a 16 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=3TGX OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3TGX FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BMA:BETA-D-MANNOSE'>BMA</scene>, <scene name='pdbligand=FUL:BETA-L-FUCOSE'>FUL</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <scene name='pdbligand=NI:NICKEL+(II)+ION'>NI</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=FUC:ALPHA-L-FUCOSE'>FUC</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></td></tr>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BMA:BETA-D-MANNOSE'>BMA</scene>, <scene name='pdbligand=FUC:ALPHA-L-FUCOSE'>FUC</scene>, <scene name='pdbligand=FUL:BETA-L-FUCOSE'>FUL</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=NI:NICKEL+(II)+ION'>NI</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
 <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">IL21R, NILR, UNQ3121/PRO10273 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN]), IL21 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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=3tgx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3tgx OCA], [http://pdbe.org/3tgx PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3tgx RCSB], [http://www.ebi.ac.uk/pdbsum/3tgx PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3tgx ProSAT]</span></td></tr>
@@ Line 22: / Line 22: @@
 ==See Also==
 *[[Interleukin|Interleukin]]
-*[[Interleukin receptor|Interleukin receptor]]
 == References ==
 <references/>

3tgx

From Proteopedia

Revision as of 14:38, 15 November 2017

IL-21:IL21R complex

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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