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3wy9

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Revision as of 05:20, 5 August 2016

Crystal structure of a complex of the archaeal ribosomal stalk protein aP1 and the GDP-bound archaeal elongation factor aEF1alpha

Structural highlights

3wy9 is a 4 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:
Related:	3wya
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[EF1A_PYRHO] This protein promotes the GTP-dependent binding of aminoacyl-tRNA to the A-site of ribosomes during protein biosynthesis.[HAMAP-Rule:MF_00118] [RL12_PYRHO] Forms part of the ribosomal stalk, playing a central role in the interaction of the ribosome with GTP-bound translation factors. The stalk complex of P.horikoshii binds to E.coli large subunits and confers on them the ability to interact with eukaryotic elongation factors. Each succesive L12 dimer bound along the P0 spine increases the GTPase activity of elongation factors and increases translation by reconsituted ribosomes.^[1]

Publication Abstract from PubMed

In all organisms, the large ribosomal subunit contains multiple copies of a flexible protein, the so-called 'stalk'. The C-terminal domain (CTD) of the stalk interacts directly with the translational GTPase factors, and this interaction is required for factor-dependent activity on the ribosome. Here we have determined the structure of a complex of the CTD of the archaeal stalk protein aP1 and the GDP-bound archaeal elongation factor aEF1alpha at 2.3 A resolution. The structure showed that the CTD of aP1 formed a long extended alpha-helix, which bound to a cleft between domains 1 and 3 of aEF1alpha, and bridged these domains. This binding between the CTD of aP1 and the aEF1alpha*GDP complex was formed mainly by hydrophobic interactions. The docking analysis showed that the CTD of aP1 can bind to aEF1alpha*GDP located on the ribosome. An additional biochemical assay demonstrated that the CTD of aP1 also bound to the aEF1alpha*GTP*aminoacyl-tRNA complex. These results suggest that the CTD of aP1 interacts with aEF1alpha at various stages in translation. Furthermore, phylogenetic perspectives and functional analyses suggested that the eukaryotic stalk protein also interacts directly with domains 1 and 3 of eEF1alpha, in a manner similar to the interaction of archaeal aP1 with aEF1alpha.

Molecular insights into the interaction of the ribosomal stalk protein with elongation factor 1alpha.,Ito K, Honda T, Suzuki T, Miyoshi T, Murakami R, Yao M, Uchiumi T Nucleic Acids Res. 2014 Dec 16;42(22):14042-52. doi: 10.1093/nar/gku1248. Epub, 2014 Nov 26. PMID:25428348^[2]

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

References

↑ Maki Y, Hashimoto T, Zhou M, Naganuma T, Ohta J, Nomura T, Robinson CV, Uchiumi T. Three binding sites for stalk protein dimers are generally present in ribosomes from archaeal organism. J Biol Chem. 2007 Nov 9;282(45):32827-33. Epub 2007 Sep 5. PMID:17804412 doi:http://dx.doi.org/10.1074/jbc.M705412200
↑ Ito K, Honda T, Suzuki T, Miyoshi T, Murakami R, Yao M, Uchiumi T. Molecular insights into the interaction of the ribosomal stalk protein with elongation factor 1alpha. Nucleic Acids Res. 2014 Dec 16;42(22):14042-52. doi: 10.1093/nar/gku1248. Epub, 2014 Nov 26. PMID:25428348 doi:http://dx.doi.org/10.1093/nar/gku1248

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/3wy9"

@@ Line 1: / Line 1: @@
 ==Crystal structure of a complex of the archaeal ribosomal stalk protein aP1 and the GDP-bound archaeal elongation factor aEF1alpha==
 <StructureSection load='3wy9' size='340' side='right' caption='[[3wy9]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
@@ Line 5: / Line 6: @@
 </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=GDP:GUANOSINE-5-DIPHOSPHATE'>GDP</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3wya|3wya]]</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=3wy9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3wy9 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3wy9 RCSB], [http://www.ebi.ac.uk/pdbsum/3wy9 PDBsum]</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=3wy9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3wy9 OCA], [http://pdbe.org/3wy9 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3wy9 RCSB], [http://www.ebi.ac.uk/pdbsum/3wy9 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3wy9 ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 17: / Line 18: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 3wy9" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Elongation factor|Elongation factor]]
 == References ==
 <references/>

3wy9

From Proteopedia

Revision as of 05:20, 5 August 2016

Crystal structure of a complex of the archaeal ribosomal stalk protein aP1 and the GDP-bound archaeal elongation factor aEF1alpha

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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