View source for 2ai3


==Purine nucleoside phosphorylase from calf spleen==
<StructureSection load='2ai3' size='340' side='right'caption='[[2ai3]], [[Resolution|resolution]] 1.70&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2ai3]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2AI3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2AI3 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]] 1.7&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=144:TRIS-HYDROXYMETHYL-METHYL-AMMONIUM'>144</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=P2G:(2S,4R,6R,6AS)-4-(2-AMINO-6-OXO-1,6-DIHYDROPURIN-9-YL)-6-(HYDROXYMETHYL)-TETRAHYDROFURO[3,4-D][1,3]DIOXOL-2-YLPHOSPHONIC+ACID'>P2G</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=2ai3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2ai3 OCA], [https://pdbe.org/2ai3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2ai3 RCSB], [https://www.ebi.ac.uk/pdbsum/2ai3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2ai3 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/PNPH_BOVIN PNPH_BOVIN] The purine nucleoside phosphorylases catalyze the phosphorolytic breakdown of the N-glycosidic bond in the beta-(deoxy)ribonucleoside molecules, with the formation of the corresponding free purine bases and pentose-1-phosphate.
== 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/ai/2ai3_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=2ai3 ConSurf].
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== Publication Abstract from PubMed ==
In an effort to develop potent multisubstrate-analog inhibitors of purine nucleoside phosphorylase (PNP), three nucleoside phosphonates were designed utilizing structural information from the previously reported structures of complexes of bovine PNP with substrates and products. The nucleoside phosphonates contain an acetal linkage at the O2' and O3' positions and a two-C-atom spacer between the ribose and phosphate moieties. The linkage enables the compounds to simultaneously occupy the purine-, ribose- and phosphate-binding sites. The chemical syntheses, inhibition profiles and structural characterization of these novel multisubstrate analog inhibitors with bovine PNP are described.

Novel multisubstrate inhibitors of mammalian purine nucleoside phosphorylase.,Toms AV, Wang W, Li Y, Ganem B, Ealick SE Acta Crystallogr D Biol Crystallogr. 2005 Nov;61(Pt 11):1449-58. Epub 2005, Oct 19. PMID:16239721<ref>PMID:16239721</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 2ai3" style="background-color:#fffaf0;"></div>

==See Also==
*[[Purine nucleoside phosphorylase 3D structures|Purine nucleoside phosphorylase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Bos taurus]]
[[Category: Large Structures]]
[[Category: Ealick SE]]
[[Category: Ganem B]]
[[Category: Li Y]]
[[Category: Toms AV]]
[[Category: Wang W]]