1zun

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[[Image:1zun.png|left|200px]]
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==Crystal Structure of a GTP-Regulated ATP Sulfurylase Heterodimer from Pseudomonas syringae==
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<StructureSection load='1zun' size='340' side='right' caption='[[1zun]], [[Resolution|resolution]] 2.70&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1zun]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Pseudomonas_syringae Pseudomonas syringae] and [http://en.wikipedia.org/wiki/Pseudomonas_syringae_pv._tomato_str._dc3000 Pseudomonas syringae pv. tomato str. dc3000]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZUN OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1ZUN FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=AGS:PHOSPHOTHIOPHOSPHORIC+ACID-ADENYLATE+ESTER'>AGS</scene>, <scene name='pdbligand=GDP:GUANOSINE-5-DIPHOSPHATE'>GDP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene><br>
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<tr><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>
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<tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">cysD ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=317 Pseudomonas syringae]), cysNC ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=223283 Pseudomonas syringae pv. tomato str. DC3000])</td></tr>
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<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Sulfate_adenylyltransferase Sulfate adenylyltransferase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.7.7.4 2.7.7.4] </span></td></tr>
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<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1zun FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1zun OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1zun RCSB], [http://www.ebi.ac.uk/pdbsum/1zun PDBsum]</span></td></tr>
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<table>
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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/zu/1zun_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/chain_selection.php?pdb_ID=2ata 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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Sulfate assimilation is a critical component of both primary and secondary metabolism. An essential step in this pathway is the activation of sulfate through adenylation by the enzyme ATP sulfurylase (ATPS), forming adenosine 5'-phosphosulfate (APS). Proteobacterial ATPS overcomes this energetically unfavorable reaction by associating with a regulatory G protein, coupling the energy of GTP hydrolysis to APS formation. To discover the molecular basis of this unusual role for a G protein, we biochemically characterized and solved the X-ray crystal structure of a complex between Pseudomonas syringae ATPS (CysD) and its associated regulatory G protein (CysN). The structure of CysN*D shows the two proteins in tight association; however, the nucleotides bound to each subunit are spatially segregated. We provide evidence that conserved switch motifs in the G domain of CysN allosterically mediate interactions between the nucleotide binding sites. This structure suggests a molecular mechanism by which conserved G domain architecture is used to energetically link GTP turnover to the production of an essential metabolite.
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{{STRUCTURE_1zun| PDB=1zun | SCENE= }}
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Molecular basis for G protein control of the prokaryotic ATP sulfurylase.,Mougous JD, Lee DH, Hubbard SC, Schelle MW, Vocadlo DJ, Berger JM, Bertozzi CR Mol Cell. 2006 Jan 6;21(1):109-22. PMID:16387658<ref>PMID:16387658</ref>
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===Crystal Structure of a GTP-Regulated ATP Sulfurylase Heterodimer from Pseudomonas syringae===
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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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{{ABSTRACT_PUBMED_16387658}}
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== References ==
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<references/>
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==About this Structure==
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__TOC__
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[[1zun]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Pseudomonas_syringae Pseudomonas syringae] and [http://en.wikipedia.org/wiki/Pseudomonas_syringae_pv._tomato_str._dc3000 Pseudomonas syringae pv. tomato str. dc3000]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1ZUN OCA].
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</StructureSection>
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==Reference==
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<ref group="xtra">PMID:016387658</ref><references group="xtra"/>
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[[Category: Pseudomonas syringae]]
[[Category: Pseudomonas syringae]]
[[Category: Pseudomonas syringae pv. tomato str. dc3000]]
[[Category: Pseudomonas syringae pv. tomato str. dc3000]]

Revision as of 01:40, 30 September 2014

Crystal Structure of a GTP-Regulated ATP Sulfurylase Heterodimer from Pseudomonas syringae

1zun, resolution 2.70Å

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