View source for 8poh


==Influenza A/H7N9 polymerase symmetric dimer bound to the promoter (PA K289A/C489R)==
<StructureSection load='8poh' size='340' side='right'caption='[[8poh]], [[Resolution|resolution]] 3.30&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[8poh]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Influenza_A_virus_(A/Zhejiang/DTID-ZJU01/2013(H7N9)) Influenza A virus (A/Zhejiang/DTID-ZJU01/2013(H7N9))]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8POH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8POH FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 3.3&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></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=8poh FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8poh OCA], [https://pdbe.org/8poh PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8poh RCSB], [https://www.ebi.ac.uk/pdbsum/8poh PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8poh ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/M9TI86_9INFA M9TI86_9INFA] Plays an essential role in viral RNA transcription and replication by forming the heterotrimeric polymerase complex together with PB1 and PB2 subunits. The complex transcribes viral mRNAs by using a unique mechanism called cap-snatching. It consists in the hijacking and cleavage of host capped pre-mRNAs. These short capped RNAs are then used as primers for viral mRNAs. The PB2 subunit is responsible for the binding of the 5' cap of cellular pre-mRNAs which are subsequently cleaved after 10-13 nucleotides by the PA subunit that carries the endonuclease activity.[HAMAP-Rule:MF_04063][SAAS:SAAS00956500]
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</StructureSection>
[[Category: Large Structures]]
[[Category: Arragain B]]
[[Category: Cusack S]]