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4d5l

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Revision as of 19:06, 10 April 2020

Cryo-EM structures of ribosomal 80S complexes with termination factors and cricket paralysis virus IRES reveal the IRES in the translocated state

4d5l, resolution 9.00Å

Structural highlights

4d5l is a 34 chain structure with sequence from Oryctolagus cuniculus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Related:	4d5n, 4d5y, 4d61, 4d66, 4d67, 4d68
Experimental data:	Check to display Experimental Data
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[G1SS70_RABIT] May play a role during erythropoiesis through regulation of transcription factor DDIT3.[HAMAP-Rule:MF_03122]

Publication Abstract from PubMed

The cricket paralysis virus (CrPV) uses an internal ribosomal entry site (IRES) to hijack the ribosome. In a remarkable RNA-based mechanism involving neither initiation factor nor initiator tRNA, the CrPV IRES jumpstarts translation in the elongation phase from the ribosomal A site. Here, we present cryoelectron microscopy (cryo-EM) maps of 80SCrPV-STOPeRF1eRF3GMPPNP and 80SCrPV-STOPeRF1 complexes, revealing a previously unseen binding state of the IRES and directly rationalizing that an eEF2-dependent translocation of the IRES is required to allow the first A-site occupation. During this unusual translocation event, the IRES undergoes a pronounced conformational change to a more stretched conformation. At the same time, our structural analysis provides information about the binding modes of eRF1eRF3GMPPNP and eRF1 in a minimal system. It shows that neither eRF3 nor ABCE1 are required for the active conformation of eRF1 at the intersection between eukaryotic termination and recycling.

Cryo-EM of Ribosomal 80S Complexes with Termination Factors Reveals the Translocated Cricket Paralysis Virus IRES.,Muhs M, Hilal T, Mielke T, Skabkin MA, Sanbonmatsu KY, Pestova TV, Spahn CM Mol Cell. 2015 Feb 5;57(3):422-432. doi: 10.1016/j.molcel.2014.12.016. Epub 2015 , Jan 15. PMID:25601755^[1]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Muhs M, Hilal T, Mielke T, Skabkin MA, Sanbonmatsu KY, Pestova TV, Spahn CM. Cryo-EM of Ribosomal 80S Complexes with Termination Factors Reveals the Translocated Cricket Paralysis Virus IRES. Mol Cell. 2015 Feb 5;57(3):422-432. doi: 10.1016/j.molcel.2014.12.016. Epub 2015 , Jan 15. PMID:25601755 doi:http://dx.doi.org/10.1016/j.molcel.2014.12.016

1 Structural highlights
2 Function
3 Publication Abstract from PubMed
4 See Also
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/4d5l"

@@ Line 3: / Line 3: @@
 <SX load='4d5l' size='340' side='right' viewer='molstar' caption='[[4d5l]], [[Resolution|resolution]] 9.00&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[4d5l]] is a 34 chain structure with sequence from [http://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4D5L OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4D5L FirstGlance]. <br>
+<table><tr><td colspan='2'>[[4d5l]] is a 34 chain structure with sequence from [http://en.wikipedia.org/wiki/Oryctolagus_cuniculus Oryctolagus cuniculus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4D5L OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=4D5L FirstGlance]. <br>
 </td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[4d5n|4d5n]], [[4d5y|4d5y]], [[4d61|4d61]], [[4d66|4d66]], [[4d67|4d67]], [[4d68|4d68]]</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=4d5l FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4d5l OCA], [http://pdbe.org/4d5l PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4d5l RCSB], [http://www.ebi.ac.uk/pdbsum/4d5l PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4d5l ProSAT]</span></td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=4d5l FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4d5l OCA], [http://pdbe.org/4d5l PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4d5l RCSB], [http://www.ebi.ac.uk/pdbsum/4d5l PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4d5l ProSAT]</span></td></tr>
 </table>
 == Function ==

4d5l

From Proteopedia

Revision as of 19:06, 10 April 2020

Cryo-EM structures of ribosomal 80S complexes with termination factors and cricket paralysis virus IRES reveal the IRES in the translocated state

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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