6m5v: Difference between revisions
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==== | ==The coordinate of the hexameric terminase complex in the presence of the ADP-BeF3== | ||
<StructureSection load='6m5v' size='340' side='right'caption='[[6m5v]]' scene=''> | <StructureSection load='6m5v' size='340' side='right'caption='[[6m5v]], [[Resolution|resolution]] 4.50Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id= OCA]. For a <b>guided tour on the structure components</b> use [ | <table><tr><td colspan='2'>[[6m5v]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Human_alphaherpesvirus_1_strain_17 Human alphaherpesvirus 1 strain 17]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6M5V OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6M5V FirstGlance]. <br> | ||
</td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 4.5Å</td></tr> | ||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=BEF:BERYLLIUM+TRIFLUORIDE+ION'>BEF</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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=6m5v FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6m5v OCA], [https://pdbe.org/6m5v PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6m5v RCSB], [https://www.ebi.ac.uk/pdbsum/6m5v PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6m5v ProSAT]</span></td></tr> | |||
</table> | </table> | ||
== Function == | |||
[https://www.uniprot.org/uniprot/TRM3_HHV11 TRM3_HHV11] Component of the molecular motor that translocates genomic DNA in empty capsid during DNA packaging. Heterodimerizes with small terminase protein to be docked on capsid portal protein. The latter forms a ring in which genomic DNA in translocated into the capsid. May have or induce an endonuclease activity to cleave the genome concatemer after encapsidation. | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Genome packaging is a fundamental process in a viral life cycle and a prime target of antiviral drugs. Herpesviruses use an ATP-driven packaging motor/terminase complex to translocate and cleave concatemeric dsDNA into procapsids but its molecular architecture and mechanism are unknown. We report atomic structures of a herpesvirus hexameric terminase complex in both the apo and ADP*BeF3-bound states. Each subunit of the hexameric ring comprises three components-the ATPase/terminase pUL15 and two regulator/fixer proteins, pUL28 and pUL33-unlike bacteriophage terminases. Distal to the nuclease domains, six ATPase domains form a central channel with conserved basic-patches conducive to DNA binding and trans-acting arginine fingers are essential to ATP hydrolysis and sequential DNA translocation. Rearrangement of the nuclease domains mediated by regulatory domains converts DNA translocation mode to cleavage mode. Our structures favor a sequential revolution model for DNA translocation and suggest mechanisms for concerted domain rearrangements leading to DNA cleavage. | |||
Architecture of the herpesvirus genome-packaging complex and implications for DNA translocation.,Yang Y, Yang P, Wang N, Chen Z, Su D, Zhou ZH, Rao Z, Wang X Protein Cell. 2020 May;11(5):339-351. doi: 10.1007/s13238-020-00710-0. Epub 2020 , Apr 23. PMID:32328903<ref>PMID:32328903</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
<div class="pdbe-citations 6m5v" style="background-color:#fffaf0;"></div> | |||
==See Also== | |||
*[[Terminase 3D Structures|Terminase 3D Structures]] | |||
== References == | |||
<references/> | |||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: Human alphaherpesvirus 1 strain 17]] | |||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
[[Category: | [[Category: Chen ZH]] | ||
[[Category: Rao ZH]] | |||
[[Category: Wang N]] | |||
[[Category: Wang XX]] | |||
[[Category: Yang P]] | |||
[[Category: Yang YX]] | |||
[[Category: Zhou ZH]] | |||
Latest revision as of 13:29, 13 August 2026
The coordinate of the hexameric terminase complex in the presence of the ADP-BeF3
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