View source for 2vz0


==Pteridine Reductase 1 (PTR1) from Trypanosoma Brucei in complex with NADP and DDD00066641==
<StructureSection load='2vz0' size='340' side='right'caption='[[2vz0]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2vz0]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Trybb Trybb]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2VZ0 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2VZ0 FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=D64:6-(4-METHYLPHENYL)QUINAZOLINE-2,4-DIAMINE'>D64</scene>, <scene name='pdbligand=NAP:NADP+NICOTINAMIDE-ADENINE-DINUCLEOTIDE+PHOSPHATE'>NAP</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat"><div style='overflow: auto; max-height: 3em;'>[[2c7v|2c7v]]</div></td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Pteridine_reductase Pteridine reductase], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.5.1.33 1.5.1.33] </span></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=2vz0 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2vz0 OCA], [https://pdbe.org/2vz0 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2vz0 RCSB], [https://www.ebi.ac.uk/pdbsum/2vz0 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2vz0 ProSAT]</span></td></tr>
</table>
== 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/vz/2vz0_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=2vz0 ConSurf].
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== Publication Abstract from PubMed ==
Activity of the pterin- and folate-salvaging enzymes pteridine reductase 1 (PTR1) and dihydrofolate reductase-thymidylate synthetase (DHFR-TS) is commonly measured as a decrease in absorbance at 340 nm, corresponding to oxidation of nicotinamide adenine dinucleotide phosphate (NADPH). Although this assay has been adequate to study the biology of these enzymes, it is not amenable to support any degree of routine inhibitor assessment because its restricted linearity is incompatible with enhanced throughput microtiter plate screening. In this article, we report the development and validation of a nonenzymatically coupled screening assay in which the product of the enzymatic reaction reduces cytochrome c, causing an increase in absorbance at 550 nm. We demonstrate this assay to be robust and accurate, and we describe its utility in supporting a structure-based design, small-molecule inhibitor campaign against Trypanosoma brucei PTR1 and DHFR-TS.

Development and validation of a cytochrome c-coupled assay for pteridine reductase 1 and dihydrofolate reductase.,Shanks EJ, Ong HB, Robinson DA, Thompson S, Sienkiewicz N, Fairlamb AH, Frearson JA Anal Biochem. 2010 Jan 15;396(2):194-203. Epub 2009 Sep 11. PMID:19748480<ref>PMID:19748480</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 2vz0" style="background-color:#fffaf0;"></div>

==See Also==
*[[Pteridine reductase|Pteridine reductase]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Pteridine reductase]]
[[Category: Trybb]]
[[Category: Fairlamb, A H]]
[[Category: Robinson, D A]]
[[Category: Sienkiewicz, N]]
[[Category: Thompson, S]]
[[Category: Oxidoreductase]]
[[Category: Short-chain dehydrogenase/reductase]]
[[Category: Trypanosomatid]]