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1ttt

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[[Image:1ttt.jpg|left|200px]]<br /><applet load="1ttt" size="350" color="white" frame="true" align="right" spinBox="true"
 
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caption="1ttt, resolution 2.7&Aring;" />
 
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'''PHE-TRNA, ELONGATION FACTOR EF-TU:GDPNP TERNARY COMPLEX'''<br />
 
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==Overview==
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==Phe-tRNA, elongation factoR EF-TU:GDPNP ternary complex==
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The structure of the ternary complex consisting of yeast, phenylalanyl-transfer RNA (Phe-tRNAPhe), Thermus aquaticus elongation, factor Tu (EF-Tu), and the guanosine triphosphate (GTP) analog GDPNP was, determined by x-ray crystallography at 2.7 angstrom resolution. The, ternary complex participates in placing the amino acids in their correct, order when messenger RNA is translated into a protein sequence on the, ribosome. The EF-Tu-GDPNP component binds to one side of the acceptor, helix of Phe-tRNAPhe involving all three domains of EF-Tu. Binding sites, for the phenylalanylated CCA end and the phosphorylated 5' end are located, at domain interfaces, whereas the T stem interacts with the surface of the, beta-barrel domain 3. The binding involves many conserved residues in, EF-Tu. The overall shape of the ternary complex is similar to that of the, translocation factor, EF-G-GDP, and this suggests a novel mechanism, involving "molecular mimicry" in the translational apparatus.
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<StructureSection load='1ttt' size='340' side='right'caption='[[1ttt]], [[Resolution|resolution]] 2.70&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1ttt]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae] and [https://en.wikipedia.org/wiki/Thermus_aquaticus Thermus aquaticus]. The September 2006 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Elongation Factors'' by David S. Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2006_9 10.2210/rcsb_pdb/mom_2006_9]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1TTT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1TTT 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]] 2.7&#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=1MA:6-HYDRO-1-METHYLADENOSINE-5-MONOPHOSPHATE'>1MA</scene>, <scene name='pdbligand=2MG:2N-METHYLGUANOSINE-5-MONOPHOSPHATE'>2MG</scene>, <scene name='pdbligand=5MC:5-METHYLCYTIDINE-5-MONOPHOSPHATE'>5MC</scene>, <scene name='pdbligand=5MU:5-METHYLURIDINE+5-MONOPHOSPHATE'>5MU</scene>, <scene name='pdbligand=7MG:7N-METHYL-8-HYDROGUANOSINE-5-MONOPHOSPHATE'>7MG</scene>, <scene name='pdbligand=GNP:PHOSPHOAMINOPHOSPHONIC+ACID-GUANYLATE+ESTER'>GNP</scene>, <scene name='pdbligand=H2U:5,6-DIHYDROURIDINE-5-MONOPHOSPHATE'>H2U</scene>, <scene name='pdbligand=M2G:N2-DIMETHYLGUANOSINE-5-MONOPHOSPHATE'>M2G</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=OMC:O2-METHYLYCYTIDINE-5-MONOPHOSPHATE'>OMC</scene>, <scene name='pdbligand=OMG:O2-METHYLGUANOSINE-5-MONOPHOSPHATE'>OMG</scene>, <scene name='pdbligand=PHE:PHENYLALANINE'>PHE</scene>, <scene name='pdbligand=PSU:PSEUDOURIDINE-5-MONOPHOSPHATE'>PSU</scene>, <scene name='pdbligand=YYG:4-(3-[5-O-PHOSPHONORIBOFURANOSYL]-4,6-DIMETHYL-8-OXO-4,8-DIHYDRO-3H-1,3,4,5,7A-PENTAAZA-S-INDACEN-YLAMINO-BUTYRIC+ACID+METHYL+ESTER'>YYG</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=1ttt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ttt OCA], [https://pdbe.org/1ttt PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ttt RCSB], [https://www.ebi.ac.uk/pdbsum/1ttt PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ttt ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/EFTU_THEAQ EFTU_THEAQ] This protein promotes the GTP-dependent binding of aminoacyl-tRNA to the A-site of ribosomes during protein biosynthesis.[HAMAP-Rule:MF_00118_B]
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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/tt/1ttt_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=1ttt ConSurf].
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<div style="clear:both"></div>
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==About this Structure==
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==See Also==
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1TTT is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Thermus_aquaticus Thermus aquaticus] with <scene name='pdbligand=MG:'>MG</scene> and <scene name='pdbligand=GNP:'>GNP</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. The following page contains interesting information on the relation of 1TTT with [[http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/pdb81_1.html Elongation Factors]]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1TTT OCA].
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*[[Elongation factor 3D structures|Elongation factor 3D structures]]
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__TOC__
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==Reference==
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</StructureSection>
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Crystal structure of the ternary complex of Phe-tRNAPhe, EF-Tu, and a GTP analog., Nissen P, Kjeldgaard M, Thirup S, Polekhina G, Reshetnikova L, Clark BF, Nyborg J, Science. 1995 Dec 1;270(5241):1464-72. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=7491491 7491491]
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[[Category: Elongation Factors]]
[[Category: Elongation Factors]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: RCSB PDB Molecule of the Month]]
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[[Category: Saccharomyces cerevisiae]]
[[Category: Thermus aquaticus]]
[[Category: Thermus aquaticus]]
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[[Category: Clark, B.F.C.]]
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[[Category: Clark BFC]]
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[[Category: Kjeldgaard, M.]]
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[[Category: Kjeldgaard M]]
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[[Category: Nissen, P.]]
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[[Category: Nissen P]]
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[[Category: Nyborg, J.]]
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[[Category: Nyborg J]]
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[[Category: Polekhina, G.]]
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[[Category: Polekhina G]]
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[[Category: Reshetnikova, L.]]
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[[Category: Reshetnikova L]]
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[[Category: Thirup, S.]]
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[[Category: Thirup S]]
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[[Category: GNP]]
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[[Category: MG]]
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[[Category: 1eft]]
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[[Category: 4tna]]
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[[Category: complex (elongation factor/trna)]]
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[[Category: ef-tu]]
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[[Category: peptide elongation ribonucleoprotein]]
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[[Category: protein synthesis]]
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[[Category: ribosome]]
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[[Category: trna]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri Feb 15 16:58:27 2008''
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Current revision

Phe-tRNA, elongation factoR EF-TU:GDPNP ternary complex

PDB ID 1ttt

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