1zm3

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[[Image:1zm3.gif|left|200px]]
 
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{{Structure
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==Structure of the apo eEF2-ETA complex==
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|PDB= 1zm3 |SIZE=350|CAPTION= <scene name='initialview01'>1zm3</scene>, resolution 3.07&Aring;
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<StructureSection load='1zm3' size='340' side='right'caption='[[1zm3]], [[Resolution|resolution]] 3.07&Aring;' scene=''>
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|SITE=
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== Structural highlights ==
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|LIGAND= <scene name='pdbligand=DDE:{3-[4-(2-AMINO-2-CARBOXY-ETHYL)-1H-IMIDAZOL-2-YL]-1-CARBAMOYL-PROPYL}-TRIMETHYL-AMMONIUM'>DDE</scene>
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<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>
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|ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/NAD(+)--diphthamide_ADP-ribosyltransferase NAD(+)--diphthamide ADP-ribosyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.4.2.36 2.4.2.36] </span>
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</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>
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|GENE=
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<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>
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|DOMAIN=
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<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>
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|RELATEDENTRY=[[1n0u|1N0U]], [[1aer|1AER]]
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</table>
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|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1zm3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zm3 OCA], [http://www.ebi.ac.uk/pdbsum/1zm3 PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=1zm3 RCSB]</span>
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== Function ==
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}}
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[https://www.uniprot.org/uniprot/EF2_YEAST EF2_YEAST]
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/zm/1zm3_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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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.
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'''Structure of the apo eEF2-ETA complex'''
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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>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 1zm3" style="background-color:#fffaf0;"></div>
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==Overview==
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==See Also==
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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.
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*[[Elongation factor 3D structures|Elongation factor 3D structures]]
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*[[Exotoxin 3D structures|Exotoxin 3D structures]]
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==About this Structure==
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== References ==
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1ZM3 is a [[Protein complex]] structure of sequences 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].
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<references/>
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__TOC__
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==Reference==
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</StructureSection>
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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:[http://www.ncbi.nlm.nih.gov/pubmed/16107839 16107839]
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[[Category: Large Structures]]
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[[Category: NAD(+)--diphthamide ADP-ribosyltransferase]]
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[[Category: Protein complex]]
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[[Category: Pseudomonas aeruginosa]]
[[Category: Pseudomonas aeruginosa]]
[[Category: Saccharomyces cerevisiae]]
[[Category: Saccharomyces cerevisiae]]
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[[Category: Andersen, G R.]]
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[[Category: Andersen GR]]
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[[Category: Boesen, T.]]
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[[Category: Boesen T]]
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[[Category: Joergensen, R.]]
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[[Category: Joergensen R]]
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[[Category: Marquez, V E.]]
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[[Category: Marquez VE]]
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[[Category: Merrill, A R.]]
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[[Category: Merrill AR]]
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[[Category: Schwan, A L.]]
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[[Category: Schwan AL]]
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[[Category: Yates, S P.]]
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[[Category: Yates SP]]
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[[Category: adp-ribosylation]]
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[[Category: elongation factor]]
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[[Category: toxin]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 01:38:33 2008''
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Current revision

Structure of the apo eEF2-ETA complex

PDB ID 1zm3

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