3og8
From Proteopedia
(Difference between revisions)
| Line 1: | Line 1: | ||
==Crystal structure of human RIG-I CTD bound to a 14-bp blunt-ended dsRNA== | ==Crystal structure of human RIG-I CTD bound to a 14-bp blunt-ended dsRNA== | ||
| - | <StructureSection load='3og8' size='340' side='right' caption='[[3og8]], [[Resolution|resolution]] 2.40Å' scene=''> | + | <StructureSection load='3og8' size='340' side='right'caption='[[3og8]], [[Resolution|resolution]] 2.40Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[3og8]] is a 4 chain structure with sequence from [ | + | <table><tr><td colspan='2'>[[3og8]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3OG8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3OG8 FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> | + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr> |
| - | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3lrr|3lrr]], [[3lrn|3lrn]]</td></tr> | + | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[3lrr|3lrr]], [[3lrn|3lrn]]</div></td></tr> |
| - | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">DDX58 ([ | + | <tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">DDX58 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[ | + | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/RNA_helicase RNA helicase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.6.4.13 3.6.4.13] </span></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=3og8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3og8 OCA], [https://pdbe.org/3og8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3og8 RCSB], [https://www.ebi.ac.uk/pdbsum/3og8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3og8 ProSAT]</span></td></tr> |
</table> | </table> | ||
== Function == | == Function == | ||
| - | [[ | + | [[https://www.uniprot.org/uniprot/DDX58_HUMAN DDX58_HUMAN]] Innate immune receptor which acts as a cytoplasmic sensor of viral nucleic acids and plays a major role in sensing viral infection and in the activation of a cascade of antiviral responses including the induction of type I interferons and proinflammatory cytokines. Its ligands include: 5'-triphosphorylated ssRNA and dsRNA and short dsRNA (<1 kb in length). In addition to the 5'-triphosphate moiety, blunt-end base pairing at the 5'-end of the RNA is very essential. Overhangs at the non-triphosphorylated end of the dsRNA RNA have no major impact on its activity. A 3'overhang at the 5'triphosphate end decreases and any 5'overhang at the 5' triphosphate end abolishes its activity. Upon ligand binding it associates with mitochondria antiviral signaling protein (MAVS/IPS1) which activates the IKK-related kinases: TBK1 and IKBKE which phosphorylate interferon regulatory factors: IRF3 and IRF7 which in turn activate transcription of antiviral immunological genes, including interferons (IFNs); IFN-alpha and IFN-beta. Detects both positive and negative strand RNA viruses including members of the families Paramyxoviridae: Human respiratory syncytial virus and measles virus (MeV), Rhabdoviridae: vesicular stomatitis virus (VSV), Orthomyxoviridae: influenza A and B virus, Flaviviridae: Japanese encephalitis virus (JEV), hepatitis C virus (HCV), dengue virus (DENV) and west Nile virus (WNV). It also detects rotavirus and reovirus. Also involved in antiviral signaling in response to viruses containing a dsDNA genome such as Epstein-Barr virus (EBV). Detects dsRNA produced from non-self dsDNA by RNA polymerase III, such as Epstein-Barr virus-encoded RNAs (EBERs). May play important roles in granulocyte production and differentiation, bacterial phagocytosis and in the regulation of cell migration.<ref>PMID:15208624</ref> <ref>PMID:16125763</ref> <ref>PMID:15708988</ref> <ref>PMID:16153868</ref> <ref>PMID:16127453</ref> <ref>PMID:17190814</ref> <ref>PMID:18636086</ref> <ref>PMID:19631370</ref> <ref>PMID:19576794</ref> <ref>PMID:19122199</ref> <ref>PMID:19211564</ref> <ref>PMID:19609254</ref> <ref>PMID:21742966</ref> |
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
== Publication Abstract from PubMed == | == Publication Abstract from PubMed == | ||
| Line 23: | Line 23: | ||
==See Also== | ==See Also== | ||
| - | *[[Helicase|Helicase]] | + | *[[Helicase 3D structures|Helicase 3D structures]] |
== References == | == References == | ||
<references/> | <references/> | ||
| Line 29: | Line 29: | ||
</StructureSection> | </StructureSection> | ||
[[Category: Human]] | [[Category: Human]] | ||
| + | [[Category: Large Structures]] | ||
[[Category: RNA helicase]] | [[Category: RNA helicase]] | ||
[[Category: Li, P]] | [[Category: Li, P]] | ||
Revision as of 10:42, 18 May 2022
Crystal structure of human RIG-I CTD bound to a 14-bp blunt-ended dsRNA
| |||||||||||
