3mq7

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Line 3: Line 3:
<StructureSection load='3mq7' size='340' side='right'caption='[[3mq7]], [[Resolution|resolution]] 2.28&Aring;' scene=''>
<StructureSection load='3mq7' size='340' side='right'caption='[[3mq7]], [[Resolution|resolution]] 2.28&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
-
<table><tr><td colspan='2'>[[3mq7]] is a 12 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=3MQ7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3MQ7 FirstGlance]. <br>
+
<table><tr><td colspan='2'>[[3mq7]] is a 12 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3MQ7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3MQ7 FirstGlance]. <br>
-
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene></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]] 2.28&#8491;</td></tr>
-
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>
+
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>
-
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[3mq9|3mq9]], [[3mqb|3mqb]], [[3mqc|3mqc]]</div></td></tr>
+
-
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">BST2 ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</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=3mq7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3mq7 OCA], [https://pdbe.org/3mq7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3mq7 RCSB], [https://www.ebi.ac.uk/pdbsum/3mq7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3mq7 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=3mq7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3mq7 OCA], [https://pdbe.org/3mq7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3mq7 RCSB], [https://www.ebi.ac.uk/pdbsum/3mq7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3mq7 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
-
[[https://www.uniprot.org/uniprot/BST2_HUMAN BST2_HUMAN]] IFN-induced antiviral host restriction factor which efficiently blocks the release of diverse mammalian enveloped viruses by directly tethering nascent virions to the membranes of infected cells. Acts as a direct physical tether, holding virions to the cell membrane and linking virions to each other. The tethered virions can be internalized by endocytosis and subsequently degraded or they can remain on the cell surface. In either case, their spread as cell-free virions is restricted. Its target viruses belong to diverse families, including retroviridae: human immunodeficiency virus type 1 (HIV-1), human immunodeficiency virus type 2 (HIV-2), simian immunodeficiency viruses (SIVs), equine infectious anemia virus (EIAV), feline immunodeficiency virus (FIV), prototype foamy virus (PFV), Mason-Pfizer monkey virus (MPMV), human T-cell leukemia virus type 1 (HTLV-1), Rous sarcoma virus (RSV) and murine leukemia virus (MLV), flavivirideae: hepatitis C virus (HCV), filoviridae: ebola virus (EBOV) and marburg virus (MARV), arenaviridae: lassa virus (LASV) and machupo virus (MACV), herpesviridae: kaposis sarcoma-associated herpesvirus (KSHV), rhabdoviridae: vesicular stomatitis virus (VSV), orthomyxoviridae: influenza A virus, and paramyxoviridae: nipah virus. Can inhibit cell surface proteolytic activity of MMP14 causing decreased activation of MMP15 which results in inhibition of cell growth and migration. Can stimulate signaling by LILRA4/ILT7 and consequently provide negative feedback to the production of IFN by plasmacytoid dendritic cells in response to viral infection. Plays a role in the organization of the subapical actin cytoskeleton in polarized epithelial cells.<ref>PMID:18342597</ref> <ref>PMID:18200009</ref> <ref>PMID:19879838</ref> <ref>PMID:19564354</ref> <ref>PMID:19036818</ref> <ref>PMID:19179289</ref> <ref>PMID:20686043</ref> <ref>PMID:20943977</ref> <ref>PMID:20419159</ref> <ref>PMID:21529378</ref> <ref>PMID:21621240</ref> <ref>PMID:22065321</ref> <ref>PMID:22520941</ref> <ref>PMID:20399176</ref> <ref>PMID:20940320</ref>
+
[https://www.uniprot.org/uniprot/BST2_HUMAN BST2_HUMAN] IFN-induced antiviral host restriction factor which efficiently blocks the release of diverse mammalian enveloped viruses by directly tethering nascent virions to the membranes of infected cells. Acts as a direct physical tether, holding virions to the cell membrane and linking virions to each other. The tethered virions can be internalized by endocytosis and subsequently degraded or they can remain on the cell surface. In either case, their spread as cell-free virions is restricted. Its target viruses belong to diverse families, including retroviridae: human immunodeficiency virus type 1 (HIV-1), human immunodeficiency virus type 2 (HIV-2), simian immunodeficiency viruses (SIVs), equine infectious anemia virus (EIAV), feline immunodeficiency virus (FIV), prototype foamy virus (PFV), Mason-Pfizer monkey virus (MPMV), human T-cell leukemia virus type 1 (HTLV-1), Rous sarcoma virus (RSV) and murine leukemia virus (MLV), flavivirideae: hepatitis C virus (HCV), filoviridae: ebola virus (EBOV) and marburg virus (MARV), arenaviridae: lassa virus (LASV) and machupo virus (MACV), herpesviridae: kaposis sarcoma-associated herpesvirus (KSHV), rhabdoviridae: vesicular stomatitis virus (VSV), orthomyxoviridae: influenza A virus, and paramyxoviridae: nipah virus. Can inhibit cell surface proteolytic activity of MMP14 causing decreased activation of MMP15 which results in inhibition of cell growth and migration. Can stimulate signaling by LILRA4/ILT7 and consequently provide negative feedback to the production of IFN by plasmacytoid dendritic cells in response to viral infection. Plays a role in the organization of the subapical actin cytoskeleton in polarized epithelial cells.<ref>PMID:18342597</ref> <ref>PMID:18200009</ref> <ref>PMID:19879838</ref> <ref>PMID:19564354</ref> <ref>PMID:19036818</ref> <ref>PMID:19179289</ref> <ref>PMID:20686043</ref> <ref>PMID:20943977</ref> <ref>PMID:20419159</ref> <ref>PMID:21529378</ref> <ref>PMID:21621240</ref> <ref>PMID:22065321</ref> <ref>PMID:22520941</ref> <ref>PMID:20399176</ref> <ref>PMID:20940320</ref>
-
<div style="background-color:#fffaf0;">
+
-
== Publication Abstract from PubMed ==
+
-
Tetherin/BST2 is a type-II membrane protein that inhibits the release of a range of enveloped viruses, including HIV-1. Here we report three crystal structures of human tetherin, including the full-length ectodomain, a triple cysteine mutant and an ectodomain truncation. These structures show that tetherin forms a continuous alpha helix encompassing almost the entire ectodomain. Tetherin helices dimerize into parallel coiled coils via interactions throughout the C-terminal portion of the ectodomain. A comparison of the multiple structures of the tetherin dimer reveals inherent constrained flexibility at two hinges positioned at residues A88 and G109. In the crystals, two tetherin ectodomain dimers associate into a tetramer by forming an antiparallel four-helix bundle at their N termini. However, mutagenesis studies suggest that the tetrametric form of tetherin, although potentially contributing to, is not essential for its antiviral activity. Nonetheless, the structural and chemical properties of the N terminus of the ectodomain are important for optimal tethering function. This study provides detailed insight into the mechanisms by which this broad-spectrum antiviral restriction factor can function.
+
-
 
+
-
Structural insight into the mechanisms of enveloped virus tethering by tetherin.,Yang H, Wang J, Jia X, McNatt MW, Zang T, Pan B, Meng W, Wang HW, Bieniasz PD, Xiong Y Proc Natl Acad Sci U S A. 2010 Oct 12. PMID:20940320<ref>PMID:20940320</ref>
+
-
 
+
-
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
+
-
</div>
+
-
<div class="pdbe-citations 3mq7" style="background-color:#fffaf0;"></div>
+
==See Also==
==See Also==
Line 28: Line 17:
__TOC__
__TOC__
</StructureSection>
</StructureSection>
-
[[Category: Human]]
+
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Large Structures]]
-
[[Category: Meng, W]]
+
[[Category: Meng W]]
-
[[Category: Wang, J]]
+
[[Category: Wang J]]
-
[[Category: Xiong, Y]]
+
[[Category: Xiong Y]]
-
[[Category: Yang, H]]
+
[[Category: Yang H]]
-
[[Category: Antiviral protein]]
+
-
[[Category: Hiv]]
+

Revision as of 08:48, 7 February 2024

Crystal Structure of Ectodomain Mutant of BST-2/Tetherin/CD317

PDB ID 3mq7

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3mq7"
Personal tools