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[[Image:2enx.png|left|200px]]


{{STRUCTURE_2enx| PDB=2enx | SCENE= }}
==Structure of the family II inorganic pyrophosphatase from Streptococcus agalactiae at 2.8 resolution==
<StructureSection load='2enx' size='340' side='right'caption='[[2enx]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2enx]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Streptococcus_agalactiae_A909 Streptococcus agalactiae A909]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ENX OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2ENX 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]] 2.8&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=2PN:IMIDODIPHOSPHORIC+ACID'>2PN</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene>, <scene name='pdbligand=TRP:TRYPTOPHAN'>TRP</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=2enx FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2enx OCA], [https://pdbe.org/2enx PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2enx RCSB], [https://www.ebi.ac.uk/pdbsum/2enx PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2enx ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/PPAC_STRA1 PPAC_STRA1]
== 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/en/2enx_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=2enx ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Streptococcus agalactiae, a prokaryote that causes infections in neonates and immunocompromised adults, has a serine/threonine protein kinase (STK) signalling cascade. The structure of one of the targets, a family II inorganic pyrophosphatase, has been solved by molecular replacement and refined at 2.80 A resolution to an R factor of 19.2% (R(free) = 26.7%). The two monomers in the asymmetric unit are related by a noncrystallographic twofold axis, but the biological dimer is formed by a crystallographic twofold. Each monomer contains the pyrophosphate analogue imidodiphosphate (PNP) and three metal ions per active site: two Mn(2+) ions in sites M1 and M2 and an Mg(2+) ion in site M3. The enzyme is in the closed conformation. Like other family II enzymes, the structure consists of two domains (residues 1-191 and 198-311), with the active site located between them. The conformation of Lys298 in the active site is different from those observed previously and it coordinates to the conserved DHH motif in a unique way. The structure suggests that Ser150, Ser194, Ser195 and Ser296 are the most likely targets for the Ser/Thr kinase and phosphatase because they are surface-accessible and either in the active site or in the hinge region between the two domains.


===Structure of the family II inorganic pyrophosphatase from Streptococcus agalactiae at 2.8 resolution===
Structure of the Streptococcus agalactiae family II inorganic pyrophosphatase at 2.80 A resolution.,Rantanen MK, Lehtio L, Rajagopal L, Rubens CE, Goldman A Acta Crystallogr D Biol Crystallogr. 2007 Jun;63(Pt 6):738-43. Epub 2007, May 15. PMID:17505113<ref>PMID:17505113</ref>


{{ABSTRACT_PUBMED_17505113}}
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 
</div>
==About this Structure==
<div class="pdbe-citations 2enx" style="background-color:#fffaf0;"></div>
[[2enx]] is a 2 chain structure of [[Inorganic pyrophosphatase]] with sequence from [http://en.wikipedia.org/wiki/Streptococcus_agalactiae Streptococcus agalactiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2ENX OCA].


==See Also==
==See Also==
*[[Inorganic pyrophosphatase|Inorganic pyrophosphatase]]
*[[Inorganic pyrophosphatase 3D structures|Inorganic pyrophosphatase 3D structures]]
 
== References ==
==Reference==
<references/>
<ref group="xtra">PMID:017505113</ref><references group="xtra"/>
__TOC__
[[Category: Inorganic diphosphatase]]
</StructureSection>
[[Category: Streptococcus agalactiae]]
[[Category: Large Structures]]
[[Category: Goldman, A.]]
[[Category: Streptococcus agalactiae A909]]
[[Category: Lehtio, L.]]
[[Category: Goldman A]]
[[Category: Rajagopal, L.]]
[[Category: Lehtio L]]
[[Category: Rantanen, M K.]]
[[Category: Rajagopal L]]
[[Category: Rubens, C E.]]
[[Category: Rantanen MK]]
[[Category: Family ii]]
[[Category: Rubens CE]]
[[Category: Hydrolase]]
[[Category: Inorganic]]
[[Category: Phosphorylation]]
[[Category: Pyrophosphatase]]
[[Category: Signalling]]
[[Category: Streptococcus agalactiae]]
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