This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.


4e5f

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Current revision (14:52, 14 March 2024) (edit) (undo)
 
(3 intermediate revisions not shown.)
Line 1: Line 1:
 +
==Crystal structure of avian influenza virus PAn bound to compound 1==
==Crystal structure of avian influenza virus PAn bound to compound 1==
-
<StructureSection load='4e5f' size='340' side='right' caption='[[4e5f]], [[Resolution|resolution]] 2.39&Aring;' scene=''>
+
<StructureSection load='4e5f' size='340' side='right'caption='[[4e5f]], [[Resolution|resolution]] 2.39&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
-
<table><tr><td colspan='2'>[[4e5f]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Influenza_a_virus Influenza a virus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4E5F OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4E5F FirstGlance]. <br>
+
<table><tr><td colspan='2'>[[4e5f]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Influenza_A_virus_(A/Viet_Nam/1203/2004(H5N1)) Influenza A virus (A/Viet Nam/1203/2004(H5N1))]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4E5F OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4E5F FirstGlance]. <br>
-
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=0N7:2-HYDROXYISOQUINOLINE-1,3(2H,4H)-DIONE'>0N7</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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]] 2.392&#8491;</td></tr>
-
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4e5e|4e5e]], [[4e5g|4e5g]], [[4e5h|4e5h]], [[4e5i|4e5i]], [[4e5j|4e5j]], [[4e5l|4e5l]]</td></tr>
+
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=0N7:2-HYDROXYISOQUINOLINE-1,3(2H,4H)-DIONE'>0N7</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
-
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">PA ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=11320 Influenza A virus])</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=4e5f FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4e5f OCA], [https://pdbe.org/4e5f PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4e5f RCSB], [https://www.ebi.ac.uk/pdbsum/4e5f PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4e5f ProSAT]</span></td></tr>
-
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4e5f FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4e5f OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4e5f RCSB], [http://www.ebi.ac.uk/pdbsum/4e5f PDBsum]</span></td></tr>
+
</table>
</table>
-
<div style="background-color:#fffaf0;">
+
== Function ==
-
== Publication Abstract from PubMed ==
+
[https://www.uniprot.org/uniprot/Q5EP34_9INFA Q5EP34_9INFA]
-
Emerging influenza viruses are a serious threat to human health because of their pandemic potential. A promising target for the development of novel anti-influenza therapeutics is the PA protein, whose endonuclease activity is essential for viral replication. Translation of viral mRNAs by the host ribosome requires mRNA capping for recognition and binding, and the necessary mRNA caps are cleaved or "snatched" from host pre-mRNAs by the PA endonuclease. The structure-based development of inhibitors that target PA endonuclease is now possible with the recent crystal structure of the PA catalytic domain. In this study, we sought to understand the molecular mechanism of inhibition by several compounds that are known or predicted to block endonuclease-dependent polymerase activity. Using an in vitro endonuclease activity assay, we show that these compounds block the enzymatic activity of the isolated PA endonuclease domain. Using X-ray crystallography, we show how these inhibitors coordinate the two-metal endonuclease active site and engage the active site residues. Two structures also reveal an induced-fit mode of inhibitor binding. The structures allow a molecular understanding of the structure-activity relationship of several known influenza inhibitors and the mechanism of drug resistance by a PA mutation. Taken together, our data reveal new strategies for structure-based design and optimization of PA endonuclease inhibitors.
+
-
 
+
-
Structural and Biochemical Basis for Development of Influenza Virus Inhibitors Targeting the PA Endonuclease.,Dubois RM, Slavish PJ, Baughman BM, Yun MK, Bao J, Webby RJ, Webb TR, White SW PLoS Pathog. 2012 Aug;8(8):e1002830. Epub 2012 Aug 2. PMID:22876176<ref>PMID:22876176</ref>
+
-
 
+
-
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
+
-
</div>
+
==See Also==
==See Also==
-
*[[RNA polymerase|RNA polymerase]]
+
*[[RNA polymerase 3D structures|RNA polymerase 3D structures]]
-
== References ==
+
-
<references/>
+
__TOC__
__TOC__
</StructureSection>
</StructureSection>
-
[[Category: Influenza a virus]]
+
[[Category: Large Structures]]
-
[[Category: DuBois, R M]]
+
[[Category: DuBois RM]]
-
[[Category: Slavish, P J]]
+
[[Category: Slavish PJ]]
-
[[Category: Webb, T R]]
+
[[Category: Webb TR]]
-
[[Category: White, S W]]
+
[[Category: White SW]]
-
[[Category: Endonuclease domain]]
+
-
[[Category: H5n1 subtype]]
+
-
[[Category: Transcription]]
+
-
[[Category: Viral protein]]
+

Current revision

Crystal structure of avian influenza virus PAn bound to compound 1

PDB ID 4e5f

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/4e5f"
Personal tools