2hj8: Difference between revisions
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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]], [[NMR_Ensembles_of_Models | 20 NMR models]]' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[2hj8]] is a 1 chain structure with sequence from [ | <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> | ||
</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1z2m|1z2m]]</td></tr> | </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> | ||
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ISG15, G1P2, UCRP ([ | <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'>[ | <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> | ||
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Human]] | [[Category: Human]] | ||
[[Category: Large Structures]] | |||
[[Category: Acton, T B]] | [[Category: Acton, T B]] | ||
[[Category: Aramini, J M]] | [[Category: Aramini, J M]] | ||