4uje: Difference between revisions
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==Regulation of the mammalian elongation cycle by 40S subunit rolling: a eukaryotic-specific ribosome rearrangement== | ==Regulation of the mammalian elongation cycle by 40S subunit rolling: a eukaryotic-specific ribosome rearrangement== | ||
<StructureSection load='4uje' size='340' side='right' caption='[[4uje]], [[Resolution|resolution]] 6.90Å' scene=''> | <StructureSection load='4uje' size='340' side='right'caption='[[4uje]], [[Resolution|resolution]] 6.90Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[4uje]] is a 83 chain structure with sequence from [http://en.wikipedia.org/wiki/ ], [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus] and [http://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. This structure supersedes | <table><tr><td colspan='2'>[[4uje]] is a 83 chain structure with sequence from [http://en.wikipedia.org/wiki/ ], [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus] and [http://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. This structure supersedes the now removed PDB entries [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=4cxb 4cxb], [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=4cxc 4cxc], [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=4cxd 4cxd] and [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=4cxe 4cxe]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4UJE OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4UJE FirstGlance]. <br> | ||
</td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MIA:2-METHYLTHIO-N6-ISOPENTENYL-ADENOSINE-5-MONOPHOSPHATE'>MIA</scene></td></tr> | </td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MIA:2-METHYLTHIO-N6-ISOPENTENYL-ADENOSINE-5-MONOPHOSPHATE'>MIA</scene></td></tr> | ||
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4cxg|4cxg]], [[4cxh|4cxh]]</td></tr> | <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4cxg|4cxg]], [[4cxh|4cxh]]</td></tr> | ||
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4uje FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4uje OCA], [http://pdbe.org/4uje PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4uje RCSB], [http://www.ebi.ac.uk/pdbsum/4uje PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4uje ProSAT]</span></td></tr> | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4uje FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4uje OCA], [http://pdbe.org/4uje PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4uje RCSB], [http://www.ebi.ac.uk/pdbsum/4uje PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4uje ProSAT]</span></td></tr> | ||
</table> | </table> | ||
<div style="background-color:#fffaf0;"> | <div style="background-color:#fffaf0;"> | ||
== Publication Abstract from PubMed == | == Publication Abstract from PubMed == | ||
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==See Also== | ==See Also== | ||
*[[ | *[[Transfer RNA (tRNA)|Transfer RNA (tRNA)]] | ||
== References == | == References == | ||
<references/> | <references/> | ||
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</StructureSection> | </StructureSection> | ||
[[Category: Bos taurus]] | [[Category: Bos taurus]] | ||
[[Category: Large Structures]] | |||
[[Category: Oryctolagus cuniculus]] | [[Category: Oryctolagus cuniculus]] | ||
[[Category: Behrmann, E]] | [[Category: Behrmann, E]] | ||
Revision as of 10:14, 26 June 2019
Regulation of the mammalian elongation cycle by 40S subunit rolling: a eukaryotic-specific ribosome rearrangementRegulation of the mammalian elongation cycle by 40S subunit rolling: a eukaryotic-specific ribosome rearrangement
Structural highlights
Publication Abstract from PubMedThe extent to which bacterial ribosomes and the significantly larger eukaryotic ribosomes share the same mechanisms of ribosomal elongation is unknown. Here, we present subnanometer resolution cryoelectron microscopy maps of the mammalian 80S ribosome in the posttranslocational state and in complex with the eukaryotic eEF1AVal-tRNAGMPPNP ternary complex, revealing significant differences in the elongation mechanism between bacteria and mammals. Surprisingly, and in contrast to bacterial ribosomes, a rotation of the small subunit around its long axis and orthogonal to the well-known intersubunit rotation distinguishes the posttranslocational state from the classical pretranslocational state ribosome. We term this motion "subunit rolling." Correspondingly, a mammalian decoding complex visualized in substates before and after codon recognition reveals structural distinctions from the bacterial system. These findings suggest how codon recognition leads to GTPase activation in the mammalian system and demonstrate that in mammalia subunit rolling occurs during tRNA selection. Regulation of the Mammalian elongation cycle by subunit rolling: a eukaryotic-specific ribosome rearrangement.,Budkevich TV, Giesebrecht J, Behrmann E, Loerke J, Ramrath DJ, Mielke T, Ismer J, Hildebrand PW, Tung CS, Nierhaus KH, Sanbonmatsu KY, Spahn CM Cell. 2014 Jul 3;158(1):121-31. doi: 10.1016/j.cell.2014.04.044. PMID:24995983[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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