1hu3

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(New page: 200px<br /> <applet load="1hu3" size="450" color="white" frame="true" align="right" spinBox="true" caption="1hu3, resolution 2.37&Aring;" /> '''MIDDLE DOMAIN OF HU...)
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[[Image:1hu3.gif|left|200px]]<br />
 
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<applet load="1hu3" size="450" color="white" frame="true" align="right" spinBox="true"
 
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caption="1hu3, resolution 2.37&Aring;" />
 
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'''MIDDLE DOMAIN OF HUMAN EIF4GII'''<br />
 
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==Overview==
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==MIDDLE DOMAIN OF HUMAN EIF4GII==
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The X-ray structure of the phylogenetically conserved middle portion of, human eukaryotic initiation factor (eIF) 4GII has been determined at 2.4 A, resolution, revealing a crescent-shaped domain consisting of ten alpha, helices arranged as five HEAT repeats. Together with the ATP-dependent RNA, helicase eIF4A, this HEAT domain suffices for 48S ribosomal complex, formation with a picornaviral RNA internal ribosome entry site (IRES)., Structure-based site-directed mutagenesis was used to identify two, adjacent features on the surface of this essential component of the, translation initiation machinery that, respectively, bind eIF4A and a, picornaviral IRES. The structural and biochemical results provide, mechanistic insights into both cap-dependent and cap-independent, translation initiation.
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<StructureSection load='1hu3' size='340' side='right'caption='[[1hu3]], [[Resolution|resolution]] 2.37&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1HU3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1HU3 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]] 2.37&#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=MSE:SELENOMETHIONINE'>MSE</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=1hu3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1hu3 OCA], [https://pdbe.org/1hu3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1hu3 RCSB], [https://www.ebi.ac.uk/pdbsum/1hu3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1hu3 ProSAT]</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/hu/1hu3_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=1hu3 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 X-ray structure of the phylogenetically conserved middle portion of human eukaryotic initiation factor (eIF) 4GII has been determined at 2.4 A resolution, revealing a crescent-shaped domain consisting of ten alpha helices arranged as five HEAT repeats. Together with the ATP-dependent RNA helicase eIF4A, this HEAT domain suffices for 48S ribosomal complex formation with a picornaviral RNA internal ribosome entry site (IRES). Structure-based site-directed mutagenesis was used to identify two adjacent features on the surface of this essential component of the translation initiation machinery that, respectively, bind eIF4A and a picornaviral IRES. The structural and biochemical results provide mechanistic insights into both cap-dependent and cap-independent translation initiation.
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==About this Structure==
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A conserved HEAT domain within eIF4G directs assembly of the translation initiation machinery.,Marcotrigiano J, Lomakin IB, Sonenberg N, Pestova TV, Hellen CU, Burley SK Mol Cell. 2001 Jan;7(1):193-203. PMID:11172724<ref>PMID:11172724</ref>
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1HU3 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1HU3 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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A conserved HEAT domain within eIF4G directs assembly of the translation initiation machinery., Marcotrigiano J, Lomakin IB, Sonenberg N, Pestova TV, Hellen CU, Burley SK, Mol Cell. 2001 Jan;7(1):193-203. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=11172724 11172724]
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</div>
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[[Category: Homo sapiens]]
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<div class="pdbe-citations 1hu3" style="background-color:#fffaf0;"></div>
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[[Category: Single protein]]
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[[Category: Burley, S.K.]]
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[[Category: Hellen, C.U.T.]]
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[[Category: Lomakin, I.]]
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[[Category: Marcotrigiano, J.]]
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[[Category: Pestova, T.V.]]
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[[Category: Sonenberg, N.]]
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[[Category: eif4g]]
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[[Category: heat repeat]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Mon Nov 12 17:22:33 2007''
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==See Also==
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*[[Eukaryotic initiation factor 3D structures|Eukaryotic initiation factor 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: Burley SK]]
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[[Category: Hellen CUT]]
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[[Category: Lomakin I]]
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[[Category: Marcotrigiano J]]
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[[Category: Pestova TV]]
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[[Category: Sonenberg N]]

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MIDDLE DOMAIN OF HUMAN EIF4GII

PDB ID 1hu3

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