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| <StructureSection load='6e5u' size='340' side='right'caption='[[6e5u]], [[Resolution|resolution]] 3.80Å' scene=''> | | <StructureSection load='6e5u' size='340' side='right'caption='[[6e5u]], [[Resolution|resolution]] 3.80Å' scene=''> |
| == Structural highlights == | | == Structural highlights == |
| <table><tr><td colspan='2'>[[6e5u]] is a 16 chain structure with sequence from [http://en.wikipedia.org/wiki/9infa 9infa] and [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6E5U OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=6E5U FirstGlance]. <br> | | <table><tr><td colspan='2'>[[6e5u]] is a 16 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Influenza_A_virus Influenza A virus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6E5U OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6E5U FirstGlance]. <br> |
| </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">NXF1, TAP ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN]), NXT1 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN]), NS1, NS ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=11320 9INFA])</td></tr> | | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.8Å</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=6e5u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6e5u OCA], [http://pdbe.org/6e5u PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=6e5u RCSB], [http://www.ebi.ac.uk/pdbsum/6e5u PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=6e5u 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=6e5u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6e5u OCA], [https://pdbe.org/6e5u PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6e5u RCSB], [https://www.ebi.ac.uk/pdbsum/6e5u PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6e5u ProSAT]</span></td></tr> |
| </table> | | </table> |
| == Function == | | == Function == |
| [[http://www.uniprot.org/uniprot/I7CAR2_9INFA I7CAR2_9INFA]] Inhibits post-transcriptional processing of cellular pre-mRNA, by binding and inhibiting two cellular proteins that are required for the 3'-end processing of cellular pre-mRNAs: the 30 kDa cleavage and polyadenylation specificity factor/CPSF4 and the poly(A)-binding protein 2/PABPN1. In turn, unprocessed 3' end pre-mRNAs accumulate in the host nucleus and are no longer exported to the cytoplasm. Cellular protein synthesis is thereby shut off very early after virus infection. Viral protein synthesis is not affected by the inhibition of the cellular 3' end processing machinery because the poly(A) tails of viral mRNAs are produced by the viral polymerase through a stuttering mechanism.[RuleBase:RU362113][SAAS:SAAS01036581] Prevents the establishment of the cellular antiviral state by inhibiting TRIM25-mediated DDX58 ubiquitination, which normally triggers the antiviral transduction signal that leads to the activation of type I IFN genes by transcription factors IRF3 and IRF7. Prevents human EIF2AK2/PKR activation, either by binding double-strand RNA, or by interacting directly with EIF2AK2/PKR. This function may be important at the very beginning of the infection, when NS1 is mainly present in the cytoplasm. Also binds poly(A) and U6 snRNA.[RuleBase:RU362113][SAAS:SAAS01036591] [[http://www.uniprot.org/uniprot/NXF1_HUMAN NXF1_HUMAN]] Involved in the nuclear export of mRNA species bearing retroviral constitutive transport elements (CTE) and in the export of mRNA from the nucleus to the cytoplasm. The NXF1-NXT1 heterodimer is involved in the export of HSP70 mRNA in conjunction with ALYREF/THOC4 and THOC5.<ref>PMID:9660949</ref> <ref>PMID:19165146</ref> [[http://www.uniprot.org/uniprot/NXT1_HUMAN NXT1_HUMAN]] Stimulator of protein export for NES-containing proteins. Also plays a role in the nuclear export of U1 snRNA, tRNA, and mRNA. The NXF1-NXT1 heterodimer is involved in the export of HSP70 mRNA in conjunction with ALYREF/THOC4 and THOC5.<ref>PMID:10567585</ref> <ref>PMID:10848583</ref> <ref>PMID:11259602</ref> <ref>PMID:19165146</ref> | | [https://www.uniprot.org/uniprot/NXF1_HUMAN NXF1_HUMAN] Involved in the nuclear export of mRNA species bearing retroviral constitutive transport elements (CTE) and in the export of mRNA from the nucleus to the cytoplasm. The NXF1-NXT1 heterodimer is involved in the export of HSP70 mRNA in conjunction with ALYREF/THOC4 and THOC5.<ref>PMID:9660949</ref> <ref>PMID:19165146</ref> |
| <div style="background-color:#fffaf0;"> | | <div style="background-color:#fffaf0;"> |
| == Publication Abstract from PubMed == | | == Publication Abstract from PubMed == |
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| </div> | | </div> |
| <div class="pdbe-citations 6e5u" style="background-color:#fffaf0;"></div> | | <div class="pdbe-citations 6e5u" style="background-color:#fffaf0;"></div> |
| | |
| | ==See Also== |
| | *[[Nonstructural protein 3D structures|Nonstructural protein 3D structures]] |
| == References == | | == References == |
| <references/> | | <references/> |
| __TOC__ | | __TOC__ |
| </StructureSection> | | </StructureSection> |
| [[Category: Human]] | | [[Category: Homo sapiens]] |
| | [[Category: Influenza A virus]] |
| [[Category: Large Structures]] | | [[Category: Large Structures]] |
| [[Category: Ren, Y]] | | [[Category: Ren Y]] |
| [[Category: Xie, Y]] | | [[Category: Xie Y]] |
| [[Category: Mrna nuclear export]]
| |
| [[Category: Rna binding protein]]
| |