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.


2e1b

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
m (Protected "2e1b" [edit=sysop:move=sysop])
Line 1: Line 1:
-
[[Image:2e1b.png|left|200px]]
+
==Crystal structure of the AlaX-M trans-editing enzyme from Pyrococcus horikoshii==
 +
<StructureSection load='2e1b' size='340' side='right' caption='[[2e1b]], [[Resolution|resolution]] 2.70&Aring;' scene=''>
 +
== Structural highlights ==
 +
<table><tr><td colspan='2'>[[2e1b]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Pyrococcus_horikoshii Pyrococcus horikoshii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2E1B OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2E1B FirstGlance]. <br>
 +
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene><br>
 +
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2e1b FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2e1b OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2e1b RCSB], [http://www.ebi.ac.uk/pdbsum/2e1b PDBsum], [http://www.topsan.org/Proteins/RSGI/2e1b TOPSAN]</span></td></tr>
 +
<table>
 +
== 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/e1/2e1b_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/chain_selection.php?pdb_ID=2ata ConSurf].
 +
<div style="clear:both"></div>
 +
<div style="background-color:#fffaf0;">
 +
== Publication Abstract from PubMed ==
 +
The editing domain of alanyl-tRNA synthetase (AlaRS) contributes to high-fidelity aminoacylation by hydrolyzing (editing) the incorrect products Ser-tRNA(Ala) and Gly-tRNA(Ala) (cis-editing). The AlaX protein shares sequence homology to the editing domain of AlaRS. There are three types of AlaX proteins, with different numbers of amino-acid residues (AlaX-S, AlaX-M and AlaX-L). In this report, AlaX-M from Pyrococcus horikoshii is shown to deacylate Ser-tRNA(Ala) and Gly-tRNA(Ala) (trans-editing). The crystal structure of P. horikoshii AlaX-M has been determined at 2.7 A resolution. AlaX-M consists of an N-terminal domain (N-domain) and a C-terminal domain (C-domain). A zinc ion is coordinated by the conserved zinc-binding cluster in the C-domain, which is expected to be the enzymatic active site. The glycine-rich motif, consisting of successive conserved glycine residues in the N-domain, forms a loop (the 'glycine-rich loop'). The glycine-rich loop is located near the active site and may be involved in substrate recognition and/or catalysis.
-
{{STRUCTURE_2e1b| PDB=2e1b | SCENE= }}
+
Structure of the AlaX-M trans-editing enzyme from Pyrococcus horikoshii.,Fukunaga R, Yokoyama S Acta Crystallogr D Biol Crystallogr. 2007 Mar;63(Pt 3):390-400. Epub 2007, Feb 21. PMID:17327676<ref>PMID:17327676</ref>
-
===Crystal structure of the AlaX-M trans-editing enzyme from Pyrococcus horikoshii===
+
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-
 
+
</div>
-
{{ABSTRACT_PUBMED_17327676}}
+
== References ==
-
 
+
<references/>
-
==About this Structure==
+
__TOC__
-
[[2e1b]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Pyrococcus_horikoshii Pyrococcus horikoshii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2E1B OCA].
+
</StructureSection>
-
 
+
-
==Reference==
+
-
<ref group="xtra">PMID:017327676</ref><references group="xtra"/>
+
[[Category: Pyrococcus horikoshii]]
[[Category: Pyrococcus horikoshii]]
[[Category: Fukunaga, R.]]
[[Category: Fukunaga, R.]]

Revision as of 01:06, 30 September 2014

Crystal structure of the AlaX-M trans-editing enzyme from Pyrococcus horikoshii

2e1b, resolution 2.70Å

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/2e1b"
Views
Personal tools
Navigation
Toolbox