1pgp: Difference between revisions

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 ==CRYSTALLOGRAPHIC STUDY OF COENZYME, COENZYME ANALOGUE AND SUBSTRATE BINDING IN 6-PHOSPHOGLUCONATE DEHYDROGENASE: IMPLICATIONS FOR NADP SPECIFICITY AND THE ENZYME MECHANISM==
-<StructureSection load='1pgp' size='340' side='right' caption='[[1pgp]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
+<StructureSection load='1pgp' size='340' side='right'caption='[[1pgp]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1pgp]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Ovis_ammon_aries Ovis ammon aries]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PGP OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1PGP FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1pgp]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Ovis_aries Ovis aries]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1PGP OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1PGP FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=6PG:6-PHOSPHOGLUCONIC+ACID'>6PG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.5&#8491;</td></tr>
-<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2pgd|2pgd]], [[1pgn|1pgn]], [[1pgo|1pgo]], [[1pgq|1pgq]]</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=6PG:6-PHOSPHOGLUCONIC+ACID'>6PG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
-<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Phosphogluconate_dehydrogenase_(NADP(+)-dependent,_decarboxylating) Phosphogluconate dehydrogenase (NADP(+)-dependent, decarboxylating)], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.1.1.44 1.1.1.44] </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=1pgp FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1pgp OCA], [https://pdbe.org/1pgp PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1pgp RCSB], [https://www.ebi.ac.uk/pdbsum/1pgp PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1pgp ProSAT]</span></td></tr>
-<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1pgp FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1pgp OCA], [http://pdbe.org/1pgp PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1pgp RCSB], [http://www.ebi.ac.uk/pdbsum/1pgp PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1pgp ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/6PGD_SHEEP 6PGD_SHEEP]] Catalyzes the oxidative decarboxylation of 6-phosphogluconate to ribulose 5-phosphate and CO(2), with concomitant reduction of NADP to NADPH.
+[https://www.uniprot.org/uniprot/6PGD_SHEEP 6PGD_SHEEP] Catalyzes the oxidative decarboxylation of 6-phosphogluconate to ribulose 5-phosphate and CO(2), with concomitant reduction of NADP to NADPH.
 == 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/pg/1pgp_consurf.spt"</scriptWhenChecked>
+     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/pg/1pgp_consurf.spt"</scriptWhenChecked>
      <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
      <text>to colour the structure by Evolutionary Conservation</text>
@@ Line 21: / Line 20: @@
 </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=1pgp ConSurf].
 <div style="clear:both"></div>
-<div style="background-color:#fffaf0;">
-== Publication Abstract from PubMed ==
-BACKGROUND: The nicotinamide adenine dinucleotide phosphate (NADP)-dependent oxidative decarboxylase, 6-phosphogluconate dehydrogenase, is a major source of reduced coenzyme for synthesis. Enzymes later in the pentose phosphate pathway convert the reaction product, ribulose 5-phosphate, to ribose 5-phosphate. Crystallographic study of complexes with coenzyme and substrate explain the NADP dependence which determines the enzyme's metabolic role and support the proposed general base-general acid mechanism. RESULTS: The refined structures of binary coenzyme/analogue complexes show that Arg33 is ordered by binding the 2'-phosphate, and provides one face of the adenine site. The nicotinamide, while less tightly bound, is more extended when reduced than when oxidized. All substrate binding residues are conserved; the 3-hydroxyl of 6-phosphogluconate is hydrogen bonded to N zeta of Lys183 and the 3-hydrogen points towards the oxidized nicotinamide. The 6-phosphate replaces a tightly bound sulphate in the apo-enzyme. CONCLUSIONS: NADP specificity is achieved primarily by Arg33 which binds the 2'-phosphate but, in its absence, obscures the adenine pocket. The bound oxidized nicotinamide is syn; hydride transfer from bound substrate to the nicotinamide si- face is achieved with a small movement of the nicotinamide nucleotide. Lys183 may act as general base. A water bound to Gly130 in the coenzyme domain is the most likely acid required in decarboxylation. The dihydronicotinamide ring of NADPH competes for ligands with the 1-carboxyl of 6-phosphogluconate.
-Crystallographic study of coenzyme, coenzyme analogue and substrate binding in 6-phosphogluconate dehydrogenase: implications for NADP specificity and the enzyme mechanism.,Adams MJ, Ellis GH, Gover S, Naylor CE, Phillips C Structure. 1994 Jul 15;2(7):651-68. PMID:7922042<ref>PMID:7922042</ref>
+==See Also==
+*[[6-phosphogluconate dehydrogenase 3D structures|6-phosphogluconate dehydrogenase 3D structures]]
-From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
-</div>
-<div class="pdbe-citations 1pgp" style="background-color:#fffaf0;"></div>
-== References ==
-<references/>
 __TOC__
 </StructureSection>
-[[Category: Ovis ammon aries]]
+[[Category: Large Structures]]
-[[Category: Adams, M J]]
+[[Category: Ovis aries]]
-[[Category: Gover, S]]
+[[Category: Adams MJ]]
-[[Category: Naylor, C E]]
+[[Category: Gover S]]
-[[Category: Phillips, C]]
+[[Category: Naylor CE]]
+[[Category: Phillips C]]