This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.

Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.


3a5z

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
m (Protected "3a5z" [edit=sysop:move=sysop])
Current revision (14:12, 1 November 2023) (edit) (undo)
 
(6 intermediate revisions not shown.)
Line 1: Line 1:
-
[[Image:3a5z.png|left|200px]]
 
-
{{STRUCTURE_3a5z| PDB=3a5z | SCENE= }}
+
==Crystal structure of Escherichia coli GenX in complex with elongation factor P==
 +
<StructureSection load='3a5z' size='340' side='right'caption='[[3a5z]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
 +
== Structural highlights ==
 +
<table><tr><td colspan='2'>[[3a5z]] is a 8 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3A5Z OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3A5Z 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]] 2.5&#8491;</td></tr>
 +
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=KAA:5-O-[(L-LYSYLAMINO)SULFONYL]ADENOSINE'>KAA</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=3a5z FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3a5z OCA], [https://pdbe.org/3a5z PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3a5z RCSB], [https://www.ebi.ac.uk/pdbsum/3a5z PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3a5z ProSAT]</span></td></tr>
 +
</table>
 +
== Function ==
 +
[https://www.uniprot.org/uniprot/EPMA_ECOLI EPMA_ECOLI] With EpmB is involved in the beta-lysylation step of the post-translational modification of translation elongation factor P (EF-P) on 'Lys-34'. Catalyzes the ATP-dependent activation of (R)-beta-lysine produced by EpmB, forming a lysyl-adenylate, from which the beta-lysyl moiety is then transferred to the epsilon-amino group of EF-P 'Lys-34'. The substrate (R)-beta-lysine is 100-fold more efficient than either (S)-beta-lysine or L-alpha-lysine. Cannot ligate lysine to any tRNA.[HAMAP-Rule:MF_00174]<ref>PMID:20729861</ref> <ref>PMID:21841797</ref> <ref>PMID:22128152</ref>
 +
== Evolutionary Conservation ==
 +
[[Image:Consurf_key_small.gif|200px|right]]
 +
Check<jmol>
 +
<jmolCheckbox>
 +
<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/a5/3a5z_consurf.spt"</scriptWhenChecked>
 +
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
 +
<text>to colour the structure by Evolutionary Conservation</text>
 +
</jmolCheckbox>
 +
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=3a5z ConSurf].
 +
<div style="clear:both"></div>
 +
<div style="background-color:#fffaf0;">
 +
== Publication Abstract from PubMed ==
 +
Aminoacyl-tRNA synthetase (aaRS) paralogs with unknown functions exist in various species. We now report novel 'protein lysylation' by an Escherichia coli lysyl-tRNA synthetase paralog, GenX/PoxA/YjeA. X-ray crystallographic analysis shows that the structure of the GenX protein resembles that of a class II aaRS. Further in vitro studies reveal that it specifically aminoacylates EF-P with lysine. The shape of the protein substrate mimics that of the L-shaped tRNA, and its lysylation site corresponds to the tRNA 3' end. Thus, we show how the aaRS architecture can be adapted to achieve aminoacylation of a specific protein. Moreover, in vivo analyses reveal that the translation elongation factor P (EF-P) lysylation by GenX is enhanced by YjeK (lysine 2,3-aminomutase paralog), which is encoded next to the EF-P gene, and might convert alpha-lysyl-EF-P to beta-lysyl-EF-P. In vivo analyses indicate that the EF-P modification by GenX and YjeK is essential for cell survival.
-
===Crystal structure of Escherichia coli GenX in complex with elongation factor P===
+
A paralog of lysyl-tRNA synthetase aminoacylates a conserved lysine residue in translation elongation factor P.,Yanagisawa T, Sumida T, Ishii R, Takemoto C, Yokoyama S Nat Struct Mol Biol. 2010 Sep;17(9):1136-43. Epub 2010 Aug 22. PMID:20729861<ref>PMID:20729861</ref>
-
{{ABSTRACT_PUBMED_20729861}}
+
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-
 
+
</div>
-
==About this Structure==
+
<div class="pdbe-citations 3a5z" style="background-color:#fffaf0;"></div>
-
[[3a5z]] is a 8 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3A5Z OCA].
+
==See Also==
==See Also==
-
*[[Elongation factor|Elongation factor]]
+
*[[Elongation factor 3D structures|Elongation factor 3D structures]]
-
 
+
== References ==
-
==Reference==
+
<references/>
-
<ref group="xtra">PMID:020729861</ref><references group="xtra"/>
+
__TOC__
 +
</StructureSection>
[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
-
[[Category: Lysine--tRNA ligase]]
+
[[Category: Large Structures]]
-
[[Category: Ishii, R.]]
+
[[Category: Ishii R]]
-
[[Category: Sumida, T.]]
+
[[Category: Sumida T]]
-
[[Category: Yanagisawa, T.]]
+
[[Category: Yanagisawa T]]
-
[[Category: Yokoyama, S.]]
+
[[Category: Yokoyama S]]
-
[[Category: Aminoacyl-trna synthetase]]
+
-
[[Category: Aminoacyl-trna synthetase paralog]]
+
-
[[Category: Elongation factor]]
+
-
[[Category: Ligase]]
+
-
[[Category: Lysyl-trna synthetase]]
+
-
[[Category: National project on protein structural and functional analyse]]
+
-
[[Category: Nppsfa]]
+
-
[[Category: Riken structural genomics/proteomics initiative]]
+
-
[[Category: Rsgi]]
+
-
[[Category: Structural genomic]]
+
-
[[Category: Translation]]
+
-
[[Category: Trna]]
+

Current revision

Crystal structure of Escherichia coli GenX in complex with elongation factor P

PDB ID 3a5z

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3a5z"
Personal tools