6ybw: Difference between revisions

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'''Unreleased structure'''


The entry 6ybw is ON HOLD  until Paper Publication
==Structure of a human 48S translational initiation complex - 40S body==
<StructureSection load='6ybw' size='340' side='right'caption='[[6ybw]], [[Resolution|resolution]] 3.10&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6ybw]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6YBW OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6YBW FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 3.1&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=5MC:5-METHYLCYTIDINE-5-MONOPHOSPHATE'>5MC</scene>, <scene name='pdbligand=5MU:5-METHYLURIDINE+5-MONOPHOSPHATE'>5MU</scene>, <scene name='pdbligand=6MZ:N6-METHYLADENOSINE-5-MONOPHOSPHATE'>6MZ</scene>, <scene name='pdbligand=A2M:2-O-METHYLADENOSINE+5-(DIHYDROGEN+PHOSPHATE)'>A2M</scene>, <scene name='pdbligand=JMH:[(2~{R},3~{S},4~{R},5~{R})-5-(4-azanylidene-3-methyl-2-oxidanylidene-pyrimidin-1-yl)-3,4-bis(oxidanyl)oxolan-2-yl]methyl+dihydrogen+phosphate'>JMH</scene>, <scene name='pdbligand=MA6:6N-DIMETHYLADENOSINE-5-MONOPHOSHATE'>MA6</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=OMU:O2-METHYLURIDINE+5-MONOPHOSPHATE'>OMU</scene>, <scene name='pdbligand=PSU:PSEUDOURIDINE-5-MONOPHOSPHATE'>PSU</scene>, <scene name='pdbligand=UR3:3-METHYLURIDINE-5-MONOPHOSHATE'>UR3</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=6ybw FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6ybw OCA], [https://pdbe.org/6ybw PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6ybw RCSB], [https://www.ebi.ac.uk/pdbsum/6ybw PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6ybw ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/RS4X_HUMAN RS4X_HUMAN]
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
A key step in translational initiation is the recruitment of the 43S preinitiation complex by the cap-binding complex [eukaryotic initiation factor 4F (eIF4F)] at the 5' end of messenger RNA (mRNA) to form the 48S initiation complex (i.e., the 48S). The 48S then scans along the mRNA to locate a start codon. To understand the mechanisms involved, we used cryo-electron microscopy to determine the structure of a reconstituted human 48S The structure reveals insights into early events of translation initiation complex assembly, as well as how eIF4F interacts with subunits of eIF3 near the mRNA exit channel in the 43S The location of eIF4F is consistent with a slotting model of mRNA recruitment and suggests that downstream mRNA is unwound at least in part by being "pulled" through the 40S subunit during scanning.


Authors: Brito Querido, J., Sokabe, M., Kraatz, S., Gordiyenko, Y., Skehel, M., Fraser, C., Ramakrishnan, V.
Structure of a human 48S translational initiation complex.,Brito Querido J, Sokabe M, Kraatz S, Gordiyenko Y, Skehel JM, Fraser CS, Ramakrishnan V Science. 2020 Sep 4;369(6508):1220-1227. doi: 10.1126/science.aba4904. PMID:32883864<ref>PMID:32883864</ref>


Description: Structure of a human 48S translational initiation complex -40S body
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
[[Category: Unreleased Structures]]
</div>
[[Category: Brito Querido, J]]
<div class="pdbe-citations 6ybw" style="background-color:#fffaf0;"></div>
[[Category: Sokabe, M]]
 
[[Category: Gordiyenko, Y]]
==See Also==
[[Category: Fraser, C]]
*[[Eukaryotic initiation factor 3D structures|Eukaryotic initiation factor 3D structures]]
[[Category: Skehel, M]]
*[[Ribosome 3D structures|Ribosome 3D structures]]
[[Category: Kraatz, S]]
== References ==
[[Category: Ramakrishnan, V]]
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Brito Querido J]]
[[Category: Fraser C]]
[[Category: Gordiyenko Y]]
[[Category: Kraatz S]]
[[Category: Ramakrishnan V]]
[[Category: Skehel M]]
[[Category: Sokabe M]]
Retrieved from "https://proteopedia.org/6ybw"