4pc2: Difference between revisions

From Proteopedia
Jump to navigationJump to search
OCA (talk | contribs)
No edit summary
OCA (talk | contribs)
No edit summary
 
(5 intermediate revisions by the same user not shown)
Line 1: Line 1:
'''Unreleased structure'''


The entry 4pc2 is ON HOLD  until Paper Publication
==Elongation factor Tu:Ts complex with a bound GDP==
<StructureSection load='4pc2' size='340' side='right'caption='[[4pc2]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4pc2]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli] and [https://en.wikipedia.org/wiki/Escherichia_coli_str._K-12_substr._DH10B Escherichia coli str. K-12 substr. DH10B]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4PC2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4PC2 FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.1999&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=GDP:GUANOSINE-5-DIPHOSPHATE'>GDP</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</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=4pc2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4pc2 OCA], [https://pdbe.org/4pc2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4pc2 RCSB], [https://www.ebi.ac.uk/pdbsum/4pc2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4pc2 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/A0A0M3KKV1_ECODH A0A0M3KKV1_ECODH] This protein promotes the GTP-dependent binding of aminoacyl-tRNA to the A-site of ribosomes during protein biosynthesis.[HAMAP-Rule:MF_00118]
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Translation elongation factor EF-Tu belongs to the superfamily of guanine-nucleotide binding proteins, which play key cellular roles as regulatory switches. All G-proteins require activation via exchange of GDP for GTP to carry out their respective tasks. Often, guanine-nucleotide exchange factors are essential to this process. During translation, EF-Tu:GTP transports aminoacylated tRNA to the ribosome. GTP is hydrolyzed during this process, and subsequent reactivation of EF-Tu is catalyzed by EF-Ts. The reaction path of guanine-nucleotide exchange is structurally poorly defined for EF-Tu and EF-Ts. We have determined the crystal structures of the following reaction intermediates: two structures of EF-Tu:GDP:EF-Ts (2.2 and 1.8A resolution), EF-Tu:PO4:EF-Ts (1.9A resolution), EF-Tu:GDPNP:EF-Ts (2.2A resolution) and EF-Tu:GDPNP:pulvomycin:Mg2+:EF-Ts (3.5A resolution). These structures provide snapshots throughout the entire exchange reaction and suggest a mechanism for the release of EF-Tu in its GTP conformation. An inferred sequence of events during the exchange reaction is presented.


Authors: Thirup, S.S.
Structural outline of the detailed mechanism for elongation factor Ts-mediated guanine nucleotide exchange on elongation factor Tu.,Thirup SS, Van LB, Nielsen TK, Knudsen CR J Struct Biol. 2015 Jun 11. pii: S1047-8477(15)30015-0. doi:, 10.1016/j.jsb.2015.06.011. PMID:26073967<ref>PMID:26073967</ref>


Description: Elongation factor Tu:Ts complex with a bound GDP
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
[[Category: Unreleased Structures]]
</div>
[[Category: Thirup, S.S]]
<div class="pdbe-citations 4pc2" style="background-color:#fffaf0;"></div>
 
==See Also==
*[[Elongation factor 3D structures|Elongation factor 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Escherichia coli]]
[[Category: Escherichia coli str. K-12 substr. DH10B]]
[[Category: Large Structures]]
[[Category: Thirup SS]]