2j3m: Difference between revisions

Revision as of 08:17, 4 May 2008

PROLYL-TRNA SYNTHETASE FROM ENTEROCOCCUS FAECALIS COMPLEXED WITH ATP, MANGANESE AND PROLINOL

OverviewOverview

Prolyl-tRNA synthetases (ProRSs) are unique among synthetases in that they have diverse architectures, notably the variable presence of a cis-editing domain homologous to the freestanding deacylase proteins YbaK and ProX. Here, we describe crystal structures of two bacterial ProRSs from the pathogen Enterococcus faecalis, which possesses an editing domain, and from Rhodopseudomonas palustris, which does not. We compare the overall structure and binding mode of ATP and prolyl-adenylate with those of the archael/eukaryote-type ProRS from Thermus thermophilus. Although structurally more homologous to YbaK, which preferentially hydrolyzes Cys-tRNA(Pro), the editing domain of E. faecalis ProRS possesses key elements similar to ProX, with which it shares the activity of hydrolyzing Ala-tRNA(Pro). The structures give insight into the complex evolution of ProRSs, the mechanism of editing, and structural differences between prokaryotic- and eukaryotic-type ProRSs that can be exploited for antibiotic design.

About this StructureAbout this Structure

2J3M is a Single protein structure of sequence from Enterococcus faecalis. Full crystallographic information is available from OCA.

ReferenceReference

Structures of two bacterial prolyl-tRNA synthetases with and without a cis-editing domain., Crepin T, Yaremchuk A, Tukalo M, Cusack S, Structure. 2006 Oct;14(10):1511-25. PMID:17027500 Page seeded by OCA on Sun May 4 08:17:10 2008

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OCA

@@ Line 1: / Line 1: @@
 [[Image:2j3m.jpg|left|200px]]
- {{Structure
+<!--
-|PDB= 2j3m |SIZE=350|CAPTION= <scene name='initialview01'>2j3m</scene>, resolution 2.30&Aring;
+The line below this paragraph, containing "STRUCTURE_2j3m", creates the "Structure Box" on the page.
-|SITE= <scene name='pdbsite=AC1:Mn+Binding+Site+For+Chain+B'>AC1</scene>
+You may change the PDB parameter (which sets the PDB file loaded into the applet)
-|LIGAND= <scene name='pdbligand=ATP:ADENOSINE-5&#39;-TRIPHOSPHATE'>ATP</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene>, <scene name='pdbligand=PRI:PYRROLIDINE-2-CARBALDEHYDE'>PRI</scene>
+or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
-|ACTIVITY= <span class='plainlinks'>[http://en.wikipedia.org/wiki/Proline--tRNA_ligase Proline--tRNA ligase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=6.1.1.15 6.1.1.15] </span>
+or leave the SCENE parameter empty for the default display.
-|GENE=
+-->
-|DOMAIN=
+{{STRUCTURE_2j3m|  PDB=2j3m  |  SCENE=  }}
-|RELATEDENTRY=
-|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2j3m FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2j3m OCA], [http://www.ebi.ac.uk/pdbsum/2j3m PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2j3m RCSB]</span>
-}}
 '''PROLYL-TRNA SYNTHETASE FROM ENTEROCOCCUS FAECALIS COMPLEXED WITH ATP, MANGANESE AND PROLINOL'''
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 [[Category: Tukalo, M.]]
 [[Category: Yaremchuk, A.]]
-[[Category: bacterial-type prolyl-trna synthetase,class ii aminoacyl-trna synthetase,editing,translation,atp + l-proline + trna (pro) gives amp + ppi + l-prolyl-trna(pro)]]
+[[Category: Ligase]]
-[[Category: ligase]]
+''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May  4 08:17:10 2008''
-''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 03:52:25 2008''