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==Average structure of the interferon-binding ectodomain of the human type I interferon receptor==
==Average structure of the interferon-binding ectodomain of the human type I interferon receptor==
<StructureSection load='1n6v' size='340' side='right'caption='[[1n6v]], [[NMR_Ensembles_of_Models | 1 NMR models]]' scene=''>
<StructureSection load='1n6v' size='340' side='right'caption='[[1n6v]]' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1n6v]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1N6V OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1N6V FirstGlance]. <br>
<table><tr><td colspan='2'>[[1n6v]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full experimental information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1N6V OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1N6V FirstGlance]. <br>
</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[1n6u|1n6u]]</div></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Solution NMR</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=1n6v FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1n6v OCA], [https://pdbe.org/1n6v PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1n6v RCSB], [https://www.ebi.ac.uk/pdbsum/1n6v PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1n6v ProSAT]</span></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=1n6v FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1n6v OCA], [https://pdbe.org/1n6v PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1n6v RCSB], [https://www.ebi.ac.uk/pdbsum/1n6v PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1n6v ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[https://www.uniprot.org/uniprot/INAR2_HUMAN INAR2_HUMAN]] Associates with IFNAR1 to form the type I interferon receptor. Receptor for interferons alpha and beta. Involved in IFN-mediated STAT1, STAT2 and STAT3 activation. Isoform 1 and isoform 2 are directly involved in signal transduction due to their association with the TYR kinase, JAK1. Isoform 3 is a potent inhibitor of type I IFN receptor activity.<ref>PMID:8181059</ref> <ref>PMID:7665574</ref> <ref>PMID:7759950</ref> <ref>PMID:11682488</ref> <ref>PMID:12105218</ref>
[https://www.uniprot.org/uniprot/INAR2_HUMAN INAR2_HUMAN] Associates with IFNAR1 to form the type I interferon receptor. Receptor for interferons alpha and beta. Involved in IFN-mediated STAT1, STAT2 and STAT3 activation. Isoform 1 and isoform 2 are directly involved in signal transduction due to their association with the TYR kinase, JAK1. Isoform 3 is a potent inhibitor of type I IFN receptor activity.<ref>PMID:8181059</ref> <ref>PMID:7665574</ref> <ref>PMID:7759950</ref> <ref>PMID:11682488</ref> <ref>PMID:12105218</ref>  
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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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=1n6v ConSurf].
</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=1n6v ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The potent antiviral and antiproliferative activities of human type I interferons (IFNs) are mediated by a single receptor comprising two subunits, IFNAR1 and IFNAR2. The structure of the IFNAR2 IFN binding ectodomain (IFNAR2-EC), the first helical cytokine receptor structure determined in solution, reveals the molecular basis for IFN binding. The atypical perpendicular orientation of its two fibronectin domains explains the lack of C domain involvement in ligand binding. A model of the IFNAR2-EC/IFNalpha2 complex based on double mutant cycle-derived constraints uncovers an extensive and predominantly aliphatic hydrophobic patch on the receptor that interacts with a matching hydrophobic surface of IFNalpha2. An adjacent motif of alternating charged side chains guides the two proteins into a tight complex. The binding interface may account for crossreactivity and ligand specificity of the receptor. This molecular description of IFN binding should be invaluable for study and design of IFN-based biomedical agents.
The human type I interferon receptor: NMR structure reveals the molecular basis of ligand binding.,Chill JH, Quadt SR, Levy R, Schreiber G, Anglister J Structure. 2003 Jul;11(7):791-802. PMID:12842042<ref>PMID:12842042</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1n6v" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Human]]
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Anglister, J]]
[[Category: Anglister J]]
[[Category: Chill, J H]]
[[Category: Chill JH]]
[[Category: Levy, R]]
[[Category: Levy R]]
[[Category: Quadt, S R]]
[[Category: Quadt SR]]
[[Category: Schreiber, G]]
[[Category: Schreiber G]]
[[Category: Fibronectin fold]]
[[Category: Immune system]]
[[Category: Immunoglobulin fold]]
[[Category: Two-domain structure]]
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