1zm3: Difference between revisions

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[[Image:1zm3.png|left|200px]]


{{STRUCTURE_1zm3| PDB=1zm3 | SCENE= }}  
==Structure of the apo eEF2-ETA complex==
<StructureSection load='1zm3' size='340' side='right'caption='[[1zm3]], [[Resolution|resolution]] 3.07&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1zm3]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Pseudomonas_aeruginosa Pseudomonas aeruginosa] and [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZM3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1ZM3 FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.07&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=DDE:{3-[4-(2-AMINO-2-CARBOXY-ETHYL)-1H-IMIDAZOL-2-YL]-1-CARBAMOYL-PROPYL}-TRIMETHYL-AMMONIUM'>DDE</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=1zm3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zm3 OCA], [https://pdbe.org/1zm3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1zm3 RCSB], [https://www.ebi.ac.uk/pdbsum/1zm3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1zm3 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/EF2_YEAST EF2_YEAST]
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zm/1zm3_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</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=1zm3 ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The bacteria causing diphtheria, whooping cough, cholera and other diseases secrete mono-ADP-ribosylating toxins that modify intracellular proteins. Here, we describe four structures of a catalytically active complex between a fragment of Pseudomonas aeruginosa exotoxin A (ETA) and its protein substrate, translation elongation factor 2 (eEF2). The target residue in eEF2, diphthamide (a modified histidine), spans across a cleft and faces the two phosphates and a ribose of the non-hydrolysable NAD+ analogue, betaTAD. This suggests that the diphthamide is involved in triggering NAD+ cleavage and interacting with the proposed oxacarbenium intermediate during the nucleophilic substitution reaction, explaining the requirement of diphthamide for ADP ribosylation. Diphtheria toxin may recognize eEF2 in a manner similar to ETA. Notably, the toxin-bound betaTAD phosphates mimic the phosphate backbone of two nucleotides in a conformational switch of 18S rRNA, thereby achieving universal recognition of eEF2 by ETA.


===Structure of the apo eEF2-ETA complex===
Exotoxin A-eEF2 complex structure indicates ADP ribosylation by ribosome mimicry.,Jorgensen R, Merrill AR, Yates SP, Marquez VE, Schwan AL, Boesen T, Andersen GR Nature. 2005 Aug 18;436(7053):979-84. PMID:16107839<ref>PMID:16107839</ref>


{{ABSTRACT_PUBMED_16107839}}
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 
</div>
==About this Structure==
<div class="pdbe-citations 1zm3" style="background-color:#fffaf0;"></div>
[[1zm3]] is a 6 chain structure with sequence from [http://en.wikipedia.org/wiki/Pseudomonas_aeruginosa Pseudomonas aeruginosa] and [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZM3 OCA].


==See Also==
==See Also==
*[[Elongation factor|Elongation factor]]
*[[Elongation factor 3D structures|Elongation factor 3D structures]]
 
*[[Exotoxin 3D structures|Exotoxin 3D structures]]
==Reference==
== References ==
<ref group="xtra">PMID:016107839</ref><references group="xtra"/>
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Pseudomonas aeruginosa]]
[[Category: Pseudomonas aeruginosa]]
[[Category: Saccharomyces cerevisiae]]
[[Category: Saccharomyces cerevisiae]]
[[Category: Andersen, G R.]]
[[Category: Andersen GR]]
[[Category: Boesen, T.]]
[[Category: Boesen T]]
[[Category: Joergensen, R.]]
[[Category: Joergensen R]]
[[Category: Marquez, V E.]]
[[Category: Marquez VE]]
[[Category: Merrill, A R.]]
[[Category: Merrill AR]]
[[Category: Schwan, A L.]]
[[Category: Schwan AL]]
[[Category: Yates, S P.]]
[[Category: Yates SP]]
[[Category: Adp-ribosylation]]
[[Category: Biosynthetic protein-transferase complex]]
[[Category: Elongation factor]]
[[Category: Toxin]]

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