3iya
From Proteopedia
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<SX load='3iya' size='340' side='right' viewer='molstar' caption='[[3iya]], [[Resolution|resolution]] 22.00Å' scene=''> | <SX load='3iya' size='340' side='right' viewer='molstar' caption='[[3iya]], [[Resolution|resolution]] 22.00Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
- | <table><tr><td colspan='2'>[[3iya]] is a 6 chain structure with sequence from [ | + | <table><tr><td colspan='2'>[[3iya]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Dengue_virus_2 Dengue virus 2]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3IYA OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3IYA FirstGlance]. <br> |
- | </td></tr><tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | + | </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=3iya FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3iya OCA], [https://pdbe.org/3iya PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3iya RCSB], [https://www.ebi.ac.uk/pdbsum/3iya PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3iya ProSAT]</span></td></tr> |
</table> | </table> | ||
== Function == | == Function == | ||
- | [[ | + | [[https://www.uniprot.org/uniprot/POLG_DEN2U POLG_DEN2U]] prM acts as a chaperone for envelope protein E during intracellular virion assembly by masking and inactivating envelope protein E fusion peptide. prM is matured in the last step of virion assembly, presumably to avoid catastrophic activation of the viral fusion peptide induced by the acidic pH of the trans-Golgi network. After cleavage by host furin, the pr peptide is released in the extracellular medium and small envelope protein M and envelope protein E homodimers are dissociated (By similarity). Envelope protein E binding to host cell surface receptor is followed by virus internalization through clathrin-mediated endocytosis. Envelope protein E is subsequently involved in membrane fusion between virion and host late endosomes. Synthesized as a homodimer with prM which acts as a chaperone for envelope protein E. After cleavage of prM, envelope protein E dissociate from small envelope protein M and homodimerizes (By similarity). Non-structural protein 1 is involved in virus replication and regulation of the innate immune response. Soluble and membrane-associated NS1 may activate human complement and induce host vascular leakage. This effect might explain the clinical manifestations of dengue hemorrhagic fever and dengue shock syndrome (By similarity). |
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
== Publication Abstract from PubMed == | == Publication Abstract from PubMed == |
Revision as of 03:45, 21 April 2022
Association of the pr peptides with dengue virus blocks membrane fusion at acidic pH
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Categories: Dengue virus 2 | Large Structures | Chen, J | Chipman, P R | Holdaway, H A | Kuhn, R J | Rossmann, M G | Yu, I | Icosahedral virus | Prm | Virus