2f2a

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[[Image:2f2a.png|left|200px]]
 
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{{STRUCTURE_2f2a| PDB=2f2a | SCENE= }}
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==Structure of tRNA-Dependent Amidotransferase GatCAB complexed with Gln==
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<StructureSection load='2f2a' size='340' side='right'caption='[[2f2a]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2f2a]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Staphylococcus_aureus Staphylococcus aureus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2F2A OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2F2A FirstGlance]. <br>
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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]] 2.3&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=GLN:GLUTAMINE'>GLN</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene></td></tr>
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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=2f2a FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2f2a OCA], [https://pdbe.org/2f2a PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2f2a RCSB], [https://www.ebi.ac.uk/pdbsum/2f2a PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2f2a ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/GATA_STAAM GATA_STAAM] Allows the formation of correctly charged Gln-tRNA(Gln) through the transamidation of misacylated Glu-tRNA(Gln) in organisms which lack glutaminyl-tRNA synthetase. The reaction takes place in the presence of glutamine and ATP through an activated gamma-phospho-Glu-tRNA(Gln) (By similarity).
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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/f2/2f2a_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=2f2a 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 formation of glutaminyl transfer RNA (Gln-tRNA(Gln)) differs among the three domains of life. Most bacteria employ an indirect pathway to produce Gln-tRNA(Gln) by a heterotrimeric glutamine amidotransferase CAB (GatCAB) that acts on the misacylated Glu-tRNA(Gln). Here, we describe a series of crystal structures of intact GatCAB from Staphylococcus aureus in the apo form and in the complexes with glutamine, asparagine, Mn2+, and adenosine triphosphate analog. Two identified catalytic centers for the glutaminase and transamidase reactions are markedly distant but connected by a hydrophilic ammonia channel 30 A in length. Further, we show that the first U-A base pair in the acceptor stem and the D loop of tRNA(Gln) serve as identity elements essential for discrimination by GatCAB and propose a complete model for the overall concerted reactions to synthesize Gln-tRNA(Gln).
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===Structure of tRNA-Dependent Amidotransferase GatCAB complexed with Gln===
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Ammonia channel couples glutaminase with transamidase reactions in GatCAB.,Nakamura A, Yao M, Chimnaronk S, Sakai N, Tanaka I Science. 2006 Jun 30;312(5782):1954-8. PMID:16809541<ref>PMID:16809541</ref>
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{{ABSTRACT_PUBMED_16809541}}
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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 2f2a" style="background-color:#fffaf0;"></div>
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==About this Structure==
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==See Also==
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[[2f2a]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Staphylococcus_aureus Staphylococcus aureus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2F2A OCA].
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*[[Glutamyl-tRNA(Gln) amidotransferase|Glutamyl-tRNA(Gln) amidotransferase]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:016809541</ref><references group="xtra"/>
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__TOC__
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</StructureSection>
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[[Category: Large Structures]]
[[Category: Staphylococcus aureus]]
[[Category: Staphylococcus aureus]]
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[[Category: Nakamura, A.]]
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[[Category: Nakamura A]]
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[[Category: Tanaka, I.]]
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[[Category: Tanaka I]]
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[[Category: Yao, M.]]
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[[Category: Yao M]]
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[[Category: Amidotransferase]]
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[[Category: Ligase]]
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[[Category: Trna]]
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Current revision

Structure of tRNA-Dependent Amidotransferase GatCAB complexed with Gln

PDB ID 2f2a

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