3pt2

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Current revision (05:49, 31 May 2023) (edit) (undo)
 
(6 intermediate revisions not shown.)
Line 1: Line 1:
-
[[Image:3pt2.png|left|200px]]
 
-
<!--
+
==Structure of a viral OTU domain protease bound to Ubiquitin==
-
The line below this paragraph, containing "STRUCTURE_3pt2", creates the "Structure Box" on the page.
+
<StructureSection load='3pt2' size='340' side='right'caption='[[3pt2]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
-
You may change the PDB parameter (which sets the PDB file loaded into the applet)
+
== Structural highlights ==
-
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
+
<table><tr><td colspan='2'>[[3pt2]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Crimean-Congo_hemorrhagic_fever_orthonairovirus Crimean-Congo hemorrhagic fever orthonairovirus] and [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3PT2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3PT2 FirstGlance]. <br>
-
or leave the SCENE parameter empty for the default display.
+
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=3CN:3-AMINOPROPANE'>3CN</scene>, <scene name='pdbligand=ACT:ACETATE+ION'>ACT</scene>, <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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=3pt2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3pt2 OCA], [https://pdbe.org/3pt2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3pt2 RCSB], [https://www.ebi.ac.uk/pdbsum/3pt2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3pt2 ProSAT]</span></td></tr>
-
{{STRUCTURE_3pt2| PDB=3pt2 | SCENE= }}
+
</table>
 +
== Function ==
 +
[https://www.uniprot.org/uniprot/L_CCHFI L_CCHFI] Displays RNA-directed RNA polymerase, deubiquitinating and deISGylase activities. RNA-dependent RNA polymerase is responsible for replication and transcription of the viral RNA genome. The deubiquitinating activity cleaves both ubiquitinated and ISGylated products and may therefore regulate ubiquitin and ISG15 dependent innate immunity.
 +
<div style="background-color:#fffaf0;">
 +
== Publication Abstract from PubMed ==
 +
The attachment of ubiquitin (Ub) and the Ub-like (Ubl) molecule interferon-stimulated gene 15 (ISG15) to cellular proteins mediates important innate antiviral responses. Ovarian tumor (OTU) domain proteases from nairoviruses and arteriviruses were recently found to remove these molecules from host proteins, which inhibits Ub and ISG15-dependent antiviral pathways. This contrasts with the Ub-specific activity of known eukaryotic OTU-domain proteases. Here we describe crystal structures of a viral OTU domain from the highly pathogenic Crimean-Congo haemorrhagic fever virus (CCHFV) bound to Ub and to ISG15 at 2.5-A and 2.3-A resolution, respectively. The complexes provide a unique structural example of ISG15 bound to another protein and reveal the molecular mechanism of an ISG15 cross-reactive deubiquitinase. To accommodate structural differences between Ub and ISG15, the viral protease binds the beta-grasp folds of Ub and C-terminal Ub-like domain of ISG15 in an orientation that is rotated nearly 75 degrees with respect to that observed for Ub bound to a representative eukaryotic OTU domain from yeast. Distinct structural determinants necessary for binding either substrate were identified and allowed the reengineering of the viral OTU protease into enzymes with increased substrate specificity, either for Ub or for ISG15. Our findings now provide the basis to determine in vivo the relative contributions of deubiquitination and deISGylation to viral immune evasion tactics, and a structural template of a promiscuous deubiquitinase from a haemorrhagic fever virus that can be targeted for inhibition using small-molecule-based strategies.
-
===Structure of a viral OTU domain protease bound to Ubiquitin===
+
Structural basis for the removal of ubiquitin and interferon-stimulated gene 15 by a viral ovarian tumor domain-containing protease.,James TW, Frias-Staheli N, Bacik JP, Levingston Macleod JM, Khajehpour M, Garcia-Sastre A, Mark BL Proc Natl Acad Sci U S A. 2011 Jan 18. PMID:21245344<ref>PMID:21245344</ref>
 +
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 +
</div>
 +
<div class="pdbe-citations 3pt2" style="background-color:#fffaf0;"></div>
-
<!--
+
==See Also==
-
The line below this paragraph, {{ABSTRACT_PUBMED_21245344}}, adds the Publication Abstract to the page
+
*[[RNA polymerase 3D structures|RNA polymerase 3D structures]]
-
(as it appears on PubMed at http://www.pubmed.gov), where 21245344 is the PubMed ID number.
+
*[[3D structures of ubiquitin|3D structures of ubiquitin]]
-
-->
+
== References ==
-
{{ABSTRACT_PUBMED_21245344}}
+
<references/>
-
 
+
__TOC__
-
==About this Structure==
+
</StructureSection>
-
[[3pt2]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Crimean-congo_hemorrhagic_fever_virus Crimean-congo hemorrhagic fever virus] and [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3PT2 OCA].
+
[[Category: Crimean-Congo hemorrhagic fever orthonairovirus]]
-
 
+
-
==Reference==
+
-
<ref group="xtra">PMID:21245344</ref><references group="xtra"/>
+
-
[[Category: Crimean-congo hemorrhagic fever virus]]
+
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
-
[[Category: Bacik, J P.]]
+
[[Category: Large Structures]]
-
[[Category: Frias-Staheli, N.]]
+
[[Category: Bacik JP]]
-
[[Category: Garcia-Sastre, A.]]
+
[[Category: Frias-Staheli N]]
-
[[Category: James, T W.]]
+
[[Category: Garcia-Sastre A]]
-
[[Category: Mark, B L.]]
+
[[Category: James TW]]
 +
[[Category: Mark BL]]

Current revision

Structure of a viral OTU domain protease bound to Ubiquitin

PDB ID 3pt2

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/3pt2"
Personal tools