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[[Image:2ai3.gif|left|200px]]
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{{STRUCTURE_2ai3|  PDB=2ai3  |  SCENE=  }}
'''Purine nucleoside phosphorylase from calf spleen'''


==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].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== 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.


==Overview==
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>
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.


==About this Structure==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
2AI3 is a [[Single protein]] structure of sequence from [http://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].
</div>
<div class="pdbe-citations 2ai3" style="background-color:#fffaf0;"></div>


==Reference==
==See Also==
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:[http://www.ncbi.nlm.nih.gov/pubmed/16239721 16239721]
*[[Purine nucleoside phosphorylase 3D structures|Purine nucleoside phosphorylase 3D structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Bos taurus]]
[[Category: Bos taurus]]
[[Category: Purine-nucleoside phosphorylase]]
[[Category: Large Structures]]
[[Category: Single protein]]
[[Category: Ealick SE]]
[[Category: Ealick, S E.]]
[[Category: Ganem B]]
[[Category: Ganem, B.]]
[[Category: Li Y]]
[[Category: Li, Y.]]
[[Category: Toms AV]]
[[Category: Toms, A V.]]
[[Category: Wang W]]
[[Category: Wang, W.]]
[[Category: Multisubstrate analog inhibitor]]
[[Category: Purine nucleoside phosphorylase]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May  3 19:04:43 2008''
Retrieved from "https://proteopedia.org/2ai3"