2ush: Difference between revisions

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New page: left|200px<br /><applet load="2ush" size="450" color="white" frame="true" align="right" spinBox="true" caption="2ush, resolution 2.22Å" /> '''5'-NUCLEOTIDASE FROM...
 
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[[Image:2ush.jpg|left|200px]]<br /><applet load="2ush" size="450" color="white" frame="true" align="right" spinBox="true"
caption="2ush, resolution 2.22&Aring;" />
'''5'-NUCLEOTIDASE FROM E. COLI'''<br />


==Overview==
==5'-NUCLEOTIDASE FROM E. COLI==
The crystal structure of 5'-nucleotidase (5'-NT) from E. coli, also known, as UDP-sugar hydrolase, has been determined at 1.7 A resolution. Two zinc, ions are present in the active site, which is located in a cleft between, two domains. The dimetal center and a catalytic Asp-His dyad are the main, players in the catalytic mechanism. Structure-based sequence comparisons, show that the structure also provides a model for animal 5'-NTs, which, together with other ectonucleotidases terminate the action of nucleotides, as extracellular signaling substances in the nervous system.
<StructureSection load='2ush' size='340' side='right'caption='[[2ush]], [[Resolution|resolution]] 2.22&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2ush]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli_K-12 Escherichia coli K-12]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2USH OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2USH 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]] 2.22&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=WO4:TUNGSTATE(VI)ION'>WO4</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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=2ush FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ush OCA], [https://pdbe.org/2ush PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2ush RCSB], [https://www.ebi.ac.uk/pdbsum/2ush PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2ush ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/USHA_ECOLI USHA_ECOLI] Degradation of external UDP-glucose to uridine monophosphate and glucose-1-phosphate, which can then be used by the cell.
== 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/us/2ush_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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=2ush ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
The crystal structure of 5'-nucleotidase (5'-NT) from E. coli, also known as UDP-sugar hydrolase, has been determined at 1.7 A resolution. Two zinc ions are present in the active site, which is located in a cleft between two domains. The dimetal center and a catalytic Asp-His dyad are the main players in the catalytic mechanism. Structure-based sequence comparisons show that the structure also provides a model for animal 5'-NTs, which together with other ectonucleotidases terminate the action of nucleotides as extracellular signaling substances in the nervous system.


==About this Structure==
X-ray structure of the Escherichia coli periplasmic 5'-nucleotidase containing a dimetal catalytic site.,Knofel T, Strater N Nat Struct Biol. 1999 May;6(5):448-53. PMID:10331872<ref>PMID:10331872</ref>
2USH is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli] with ZN and WO4 as [http://en.wikipedia.org/wiki/ligands ligands]. Active as [http://en.wikipedia.org/wiki/5'-nucleotidase 5'-nucleotidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.3.5 3.1.3.5] Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=2USH OCA].


==Reference==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
X-ray structure of the Escherichia coli periplasmic 5'-nucleotidase containing a dimetal catalytic site., Knofel T, Strater N, Nat Struct Biol. 1999 May;6(5):448-53. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=10331872 10331872]
</div>
[[Category: 5'-nucleotidase]]
<div class="pdbe-citations 2ush" style="background-color:#fffaf0;"></div>
[[Category: Escherichia coli]]
== References ==
[[Category: Single protein]]
<references/>
[[Category: Knofel, T.]]
__TOC__
[[Category: Strater, N.]]
</StructureSection>
[[Category: WO4]]
[[Category: Escherichia coli K-12]]
[[Category: ZN]]
[[Category: Large Structures]]
[[Category: 5'-nucleotidase]]
[[Category: Knofel T]]
[[Category: hydrolase (phosphoric monoester)]]
[[Category: Strater N]]
[[Category: periplasmic protein]]
[[Category: phosphatase]]
[[Category: udp-sugar hydrolase]]
 
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Latest revision as of 07:47, 9 October 2024

5'-NUCLEOTIDASE FROM E. COLI

2ush, resolution 2.22Å

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