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2odr

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(New page: 200px<br /><applet load="2odr" size="350" color="white" frame="true" align="right" spinBox="true" caption="2odr, resolution 3.228&Aring;" /> '''Methanococcus Marip...)
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[[Image:2odr.jpg|left|200px]]<br /><applet load="2odr" size="350" color="white" frame="true" align="right" spinBox="true"
 
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caption="2odr, resolution 3.228&Aring;" />
 
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'''Methanococcus Maripaludis Phosphoseryl-tRNA synthetase'''<br />
 
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==Overview==
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==Methanococcus Maripaludis Phosphoseryl-tRNA synthetase==
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A number of archaeal organisms generate Cys-tRNA(Cys) in a two-step, pathway, first charging phosphoserine (Sep) onto tRNA(Cys) and, subsequently converting it to Cys-tRNA(Cys). We have determined, at 3.2-A, resolution, the structure of the Methanococcus maripaludis, phosphoseryl-tRNA synthetase (SepRS), which catalyzes the first step of, this pathway. The structure shows that SepRS is a class II, alpha(4), synthetase whose quaternary structure arrangement of subunits closely, resembles that of the heterotetrameric (alphabeta)(2) phenylalanyl-tRNA, synthetase (PheRS). Homology modeling of a tRNA complex indicates that, in, contrast to PheRS, a single monomer in the SepRS tetramer may recognize, both the acceptor terminus and anticodon of a tRNA substrate. Using a, complex with tungstate as a marker for the position of the phosphate, moiety of Sep, we suggest that SepRS and PheRS bind their respective amino, acid substrates in dissimilar orientations by using different residues.
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<StructureSection load='2odr' size='340' side='right'caption='[[2odr]], [[Resolution|resolution]] 3.23&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2odr]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Methanococcus_maripaludis_S2 Methanococcus maripaludis S2]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ODR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2ODR 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]] 3.228&#8491;</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=2odr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2odr OCA], [https://pdbe.org/2odr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2odr RCSB], [https://www.ebi.ac.uk/pdbsum/2odr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2odr ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/SEPS_METMP SEPS_METMP] Catalyzes the attachment of O-phosphoserine (Sep) to tRNA(Cys).[HAMAP-Rule:MF_01674]
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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/od/2odr_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=2odr 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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A number of archaeal organisms generate Cys-tRNA(Cys) in a two-step pathway, first charging phosphoserine (Sep) onto tRNA(Cys) and subsequently converting it to Cys-tRNA(Cys). We have determined, at 3.2-A resolution, the structure of the Methanococcus maripaludis phosphoseryl-tRNA synthetase (SepRS), which catalyzes the first step of this pathway. The structure shows that SepRS is a class II, alpha(4) synthetase whose quaternary structure arrangement of subunits closely resembles that of the heterotetrameric (alphabeta)(2) phenylalanyl-tRNA synthetase (PheRS). Homology modeling of a tRNA complex indicates that, in contrast to PheRS, a single monomer in the SepRS tetramer may recognize both the acceptor terminus and anticodon of a tRNA substrate. Using a complex with tungstate as a marker for the position of the phosphate moiety of Sep, we suggest that SepRS and PheRS bind their respective amino acid substrates in dissimilar orientations by using different residues.
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==About this Structure==
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Toward understanding phosphoseryl-tRNACys formation: the crystal structure of Methanococcus maripaludis phosphoseryl-tRNA synthetase.,Kamtekar S, Hohn MJ, Park HS, Schnitzbauer M, Sauerwald A, Soll D, Steitz TA Proc Natl Acad Sci U S A. 2007 Feb 20;104(8):2620-5. Epub 2007 Feb 14. PMID:17301225<ref>PMID:17301225</ref>
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2ODR is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Methanococcus_maripaludis Methanococcus maripaludis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ODR OCA].
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==Reference==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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Toward understanding phosphoseryl-tRNACys formation: the crystal structure of Methanococcus maripaludis phosphoseryl-tRNA synthetase., Kamtekar S, Hohn MJ, Park HS, Schnitzbauer M, Sauerwald A, Soll D, Steitz TA, Proc Natl Acad Sci U S A. 2007 Feb 20;104(8):2620-5. Epub 2007 Feb 14. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=17301225 17301225]
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</div>
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[[Category: Methanococcus maripaludis]]
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<div class="pdbe-citations 2odr" style="background-color:#fffaf0;"></div>
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[[Category: Protein complex]]
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[[Category: Kamtekar, S.]]
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[[Category: Steitz, T.A.]]
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[[Category: phosphoserine trna synthetase class ii]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jan 23 15:24:47 2008''
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==See Also==
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*[[Aminoacyl tRNA synthetase 3D structures|Aminoacyl tRNA synthetase 3D structures]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Large Structures]]
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[[Category: Methanococcus maripaludis S2]]
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[[Category: Kamtekar S]]
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[[Category: Steitz TA]]

Current revision

Methanococcus Maripaludis Phosphoseryl-tRNA synthetase

PDB ID 2odr

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