1q4q

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Current revision (08:12, 14 February 2024) (edit) (undo)
 
(10 intermediate revisions not shown.)
Line 1: Line 1:
-
[[Image:1q4q.gif|left|200px]]
 
-
<!--
+
==Crystal structure of a DIAP1-Dronc complex==
-
The line below this paragraph, containing "STRUCTURE_1q4q", creates the "Structure Box" on the page.
+
<StructureSection load='1q4q' size='340' side='right'caption='[[1q4q]], [[Resolution|resolution]] 2.10&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'>[[1q4q]] is a 20 chain structure with sequence from [https://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1Q4Q OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1Q4Q FirstGlance]. <br>
-
or leave the SCENE parameter empty for the default display.
+
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.1&#8491;</td></tr>
-
-->
+
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
-
{{STRUCTURE_1q4q| PDB=1q4q | SCENE= }}
+
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1q4q FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1q4q OCA], [https://pdbe.org/1q4q PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1q4q RCSB], [https://www.ebi.ac.uk/pdbsum/1q4q PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1q4q ProSAT]</span></td></tr>
-
 
+
</table>
-
'''Crystal structure of a DIAP1-Dronc complex'''
+
== Function ==
-
 
+
[https://www.uniprot.org/uniprot/DIAP1_DROME DIAP1_DROME] Anti-apoptotic protein which functions as a caspase regulator, using its E3 ubiquitin-protein ligase activity to smother caspase activity. Binds, ubiquitinates and inactivates initiator caspase Dronc, and effector caspases Drice and Dcp-1. Acts as a Nedd8-E3 ubiquitin-protein ligase for Drice. Suppresses apoptosis by targeting the apoptosome for ubiquitination and inactivation. Plays an important role in cell motility. Overexpression suppresses rpr and hid-dependent cell death in the eye. Interaction of Diap1 with Dronc is required to suppress Dronc-mediated cell death through Diap1-mediated ubiquitination of Dronc. Acts as a positive regulator of Wnt signaling.<ref>PMID:14517550</ref> <ref>PMID:17397804</ref> <ref>PMID:18259196</ref> <ref>PMID:21145488</ref> <ref>PMID:22304967</ref> <ref>PMID:8548811</ref>
-
 
+
== Evolutionary Conservation ==
-
==Overview==
+
[[Image:Consurf_key_small.gif|200px|right]]
-
The inhibitor of apoptosis protein DIAP1 inhibits Dronc-dependent cell death by ubiquitinating Dronc. The pro-death proteins Reaper, Hid and Grim (RHG) promote apoptosis by antagonizing DIAP1 function. Here we report the structural basis of Dronc recognition by DIAP1 as well as a novel mechanism by which the RHG proteins remove DIAP1-mediated downregulation of Dronc. Biochemical and structural analyses revealed that the second BIR (BIR2) domain of DIAP1 recognizes a 12-residue sequence in Dronc. This recognition is essential for DIAP1 binding to Dronc, and for targeting Dronc for ubiquitination. Notably, the Dronc-binding surface on BIR2 coincides with that required for binding to the N termini of the RHG proteins, which competitively eliminate DIAP1-mediated ubiquitination of Dronc. These observations reveal the molecular mechanisms of how DIAP1 recognizes Dronc, and more importantly, how the RHG proteins remove DIAP1-mediated ubiquitination of Dronc.
+
Check<jmol>
-
 
+
<jmolCheckbox>
-
==About this Structure==
+
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/q4/1q4q_consurf.spt"</scriptWhenChecked>
-
1Q4Q is a [[Protein complex]] structure of sequences from [http://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1Q4Q OCA].
+
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
-
 
+
<text>to colour the structure by Evolutionary Conservation</text>
-
==Reference==
+
</jmolCheckbox>
-
Molecular mechanism of Reaper-Grim-Hid-mediated suppression of DIAP1-dependent Dronc ubiquitination., Chai J, Yan N, Huh JR, Wu JW, Li W, Hay BA, Shi Y, Nat Struct Biol. 2003 Nov;10(11):892-8. Epub 2003 Sep 28. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/14517550 14517550]
+
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1q4q ConSurf].
 +
<div style="clear:both"></div>
 +
== References ==
 +
<references/>
 +
__TOC__
 +
</StructureSection>
[[Category: Drosophila melanogaster]]
[[Category: Drosophila melanogaster]]
-
[[Category: Protein complex]]
+
[[Category: Large Structures]]
-
[[Category: Chai, J.]]
+
[[Category: Chai J]]
-
[[Category: Shi, Y.]]
+
[[Category: Shi Y]]
-
[[Category: Yan, N.]]
+
[[Category: Yan N]]
-
[[Category: Apoptosis]]
+
-
[[Category: Caspase]]
+
-
[[Category: Iap]]
+
-
[[Category: Mechanism]]
+
-
[[Category: Ubiquitination]]
+
-
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 05:51:50 2008''
+

Current revision

Crystal structure of a DIAP1-Dronc complex

PDB ID 1q4q

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/1q4q"
Personal tools