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==Solution NMR structure of the C-terminal domain of the interferon alpha-inducible ISG15 protein from Homo sapiens. Northeast Structural Genomics target HR2873B==
==Solution NMR structure of the C-terminal domain of the interferon alpha-inducible ISG15 protein from Homo sapiens. Northeast Structural Genomics target HR2873B==
<StructureSection load='2hj8' size='340' side='right'caption='[[2hj8]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''>
<StructureSection load='2hj8' size='340' side='right'caption='[[2hj8]]' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[2hj8]] 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=2HJ8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2HJ8 FirstGlance]. <br>
<table><tr><td colspan='2'>[[2hj8]] 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=2HJ8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2HJ8 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;'>[[1z2m|1z2m]]</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='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ISG15, G1P2, UCRP ([https://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'>[https://proteopedia.org/fgij/fg.htm?mol=2hj8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2hj8 OCA], [https://pdbe.org/2hj8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2hj8 RCSB], [https://www.ebi.ac.uk/pdbsum/2hj8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2hj8 ProSAT], [https://www.topsan.org/Proteins/NESGC/2hj8 TOPSAN]</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=2hj8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2hj8 OCA], [https://pdbe.org/2hj8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2hj8 RCSB], [https://www.ebi.ac.uk/pdbsum/2hj8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2hj8 ProSAT], [https://www.topsan.org/Proteins/NESGC/2hj8 TOPSAN]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[https://www.uniprot.org/uniprot/ISG15_HUMAN ISG15_HUMAN]] Ubiquitin-like protein that is conjugated to intracellular target proteins after IFN-alpha or IFN-beta stimulation. Its enzymatic pathway is partially distinct from that of ubiquitin, differing in substrate specificity and interaction with ligating enzymes. ISG15 conjugation pathway uses a dedicated E1 enzyme, but seems to converge with the Ub conjugation pathway at the level of a specific E2 enzyme. Targets include STAT1, SERPINA3G/SPI2A, JAK1, MAPK3/ERK1, PLCG1, EIF2AK2/PKR, MX1/MxA, and RIG-1. Deconjugated by USP18/UBP43. Shows specific chemotactic activity towards neutrophils and activates them to induce release of eosinophil chemotactic factors. May serve as a trans-acting binding factor directing the association of ligated target proteins to intermediate filaments. May also be involved in autocrine, paracrine and endocrine mechanisms, as in cell-to-cell signaling, possibly partly by inducing IFN-gamma secretion by monocytes and macrophages. Seems to display antiviral activity during viral infections.<ref>PMID:1373138</ref> <ref>PMID:7526157</ref> <ref>PMID:8550581</ref> <ref>PMID:2005397</ref> <ref>PMID:16254333</ref> <ref>PMID:16009940</ref>  In response to IFN-tau secreted by the conceptus, may ligate to and regulate proteins involved in the release of prostaglandin F2-alpha (PGF), and thus prevent lysis of the corpus luteum and maintain the pregnancy (By similarity).<ref>PMID:1373138</ref> <ref>PMID:7526157</ref> <ref>PMID:8550581</ref> <ref>PMID:2005397</ref> <ref>PMID:16254333</ref> <ref>PMID:16009940</ref>
[https://www.uniprot.org/uniprot/ISG15_HUMAN ISG15_HUMAN] Ubiquitin-like protein that is conjugated to intracellular target proteins after IFN-alpha or IFN-beta stimulation. Its enzymatic pathway is partially distinct from that of ubiquitin, differing in substrate specificity and interaction with ligating enzymes. ISG15 conjugation pathway uses a dedicated E1 enzyme, but seems to converge with the Ub conjugation pathway at the level of a specific E2 enzyme. Targets include STAT1, SERPINA3G/SPI2A, JAK1, MAPK3/ERK1, PLCG1, EIF2AK2/PKR, MX1/MxA, and RIG-1. Deconjugated by USP18/UBP43. Shows specific chemotactic activity towards neutrophils and activates them to induce release of eosinophil chemotactic factors. May serve as a trans-acting binding factor directing the association of ligated target proteins to intermediate filaments. May also be involved in autocrine, paracrine and endocrine mechanisms, as in cell-to-cell signaling, possibly partly by inducing IFN-gamma secretion by monocytes and macrophages. Seems to display antiviral activity during viral infections.<ref>PMID:1373138</ref> <ref>PMID:7526157</ref> <ref>PMID:8550581</ref> <ref>PMID:2005397</ref> <ref>PMID:16254333</ref> <ref>PMID:16009940</ref>  In response to IFN-tau secreted by the conceptus, may ligate to and regulate proteins involved in the release of prostaglandin F2-alpha (PGF), and thus prevent lysis of the corpus luteum and maintain the pregnancy (By similarity).<ref>PMID:1373138</ref> <ref>PMID:7526157</ref> <ref>PMID:8550581</ref> <ref>PMID:2005397</ref> <ref>PMID:16254333</ref> <ref>PMID:16009940</ref>  
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Human]]
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Large Structures]]
[[Category: Acton, T B]]
[[Category: Acton TB]]
[[Category: Aramini, J M]]
[[Category: Aramini JM]]
[[Category: Cunningham, K]]
[[Category: Cunningham K]]
[[Category: Ho, C K]]
[[Category: Ho CK]]
[[Category: Janjua, H]]
[[Category: Janjua H]]
[[Category: Ma, L C]]
[[Category: Ma L-C]]
[[Category: Montelione, G T]]
[[Category: Montelione GT]]
[[Category: Structural genomic]]
[[Category: Xiao R]]
[[Category: Xiao, R]]
[[Category: Yin C]]
[[Category: Yin, C]]
[[Category: Hr2873b]]
[[Category: Human isg15]]
[[Category: Nesg]]
[[Category: PSI, Protein structure initiative]]
[[Category: Signaling protein]]
Retrieved from "https://proteopedia.org/2hj8"