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'''Unreleased structure'''


The entry 3phc is ON HOLD  until Nov 09 2012
==Crystal Structure of Plasmodium falciparum purine nucleoside phosphorylase in complex with DADMe-ImmG==
<StructureSection load='3phc' size='340' side='right'caption='[[3phc]], [[Resolution|resolution]] 2.00&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[3phc]] is a 6 chain structure with sequence from [https://en.wikipedia.org/wiki/Plasmodium_falciparum Plasmodium falciparum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3PHC OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3PHC 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&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=IM5:2-AMINO-7-{[(3R,4R)-3-HYDROXY-4-(HYDROXYMETHYL)PYRROLIDIN-1-YL]METHYL}-3,5-DIHYDRO-4H-PYRROLO[3,2-D]PYRIMIDIN-4-ONE'>IM5</scene>, <scene name='pdbligand=K:POTASSIUM+ION'>K</scene>, <scene name='pdbligand=PO4:PHOSPHATE+ION'>PO4</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=3phc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3phc OCA], [https://pdbe.org/3phc PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3phc RCSB], [https://www.ebi.ac.uk/pdbsum/3phc PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3phc ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/PNPH_PLAF7 PNPH_PLAF7] As part of the purine salvage pathway, catalyzes 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 (PubMed:18957439, PubMed:14982926, PubMed:16131758, PubMed:19575810, PubMed:24416224, PubMed:29440412). Preferentially acts on inosine and guanosine, and to a lesser extent on 2'-deoxyguanosine and guanosine (PubMed:14982926, PubMed:16131758, PubMed:19575810). Also catalyzes the phosphorylation of S-methyl-5'-thioinosine (MTI) to hypoxanthine; MTI is produced by adenosine deaminase (ADA)-mediated breakdown of S-methyl-5'-thioadenosine (MTA), a major by-product of polyamine biosynthesis (PubMed:18957439, PubMed:14982926, PubMed:24416224). Generates hypoxanthine from both the purine salvage pathway and from polyamine metabolism which is required for nucleic acids synthesis (PubMed:18957439, PubMed:14982926, PubMed:24416224). Has no activity towards adenosine (By similarity).[UniProtKB:Q8T9Z7]<ref>PMID:14982926</ref> <ref>PMID:16131758</ref> <ref>PMID:18957439</ref> <ref>PMID:19575810</ref> <ref>PMID:24416224</ref> <ref>PMID:29440412</ref>


Authors: Ho, M., Edwards, A.A., Almo, S.C., Schramm, V.L.
==See Also==
 
*[[Purine nucleoside phosphorylase 3D structures|Purine nucleoside phosphorylase 3D structures]]
Description: Crystal Structure of Plasmodium falciparum purine nucleoside phosphorylase in complex with DADMe-ImmG
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Plasmodium falciparum]]
[[Category: Almo SC]]
[[Category: Edwards AA]]
[[Category: Ho M]]
[[Category: Schramm VL]]
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