3c7d

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[[Image:3c7d.png|left|200px]]
 
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{{STRUCTURE_3c7d| PDB=3c7d | SCENE= }}
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==A structural basis for substrate and stereo selectivity in octopine dehydrogenase (ODH-NADH-Pyruvate)==
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<StructureSection load='3c7d' size='340' side='right'caption='[[3c7d]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[3c7d]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Pecten_maximus Pecten maximus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3C7D OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3C7D FirstGlance]. <br>
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</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>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NAD:NICOTINAMIDE-ADENINE-DINUCLEOTIDE'>NAD</scene>, <scene name='pdbligand=PYR:PYRUVIC+ACID'>PYR</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3c7d FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3c7d OCA], [https://pdbe.org/3c7d PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3c7d RCSB], [https://www.ebi.ac.uk/pdbsum/3c7d PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3c7d ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/OCDH_PECMA OCDH_PECMA] Catalyzes the reverse reaction of octopine dehydrogenation. Acts on L-arginine in preference to other substrates such as canavanine, cysteine, L-alanine, ornithine or norvaline, owing to the presence of the positively charged guanidium group.<ref>PMID:18028427</ref> <ref>PMID:18599075</ref>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/c7/3c7d_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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=3c7d ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Octopine dehydrogenase [N(2)-(D-1-carboxyethyl)-L-arginine:NAD(+) oxidoreductase] (OcDH) from the adductor muscle of the great scallop Pecten maximus catalyzes the reductive condensation of l-arginine and pyruvate to octopine during escape swimming. This enzyme, which is a prototype of opine dehydrogenases (OpDHs), oxidizes glycolytically born NADH to NAD(+), thus sustaining anaerobic ATP provision during short periods of strenuous muscular activity. In contrast to some other OpDHs, OcDH uses only l-arginine as the amino acid substrate. Here, we report the crystal structures of OcDH in complex with NADH and the binary complexes NADH/l-arginine and NADH/pyruvate, providing detailed information about the principles of substrate recognition, ligand binding and the reaction mechanism. OcDH binds its substrates through a combination of electrostatic forces and size selection, which guarantees that OcDH catalysis proceeds with substrate selectivity and stereoselectivity, giving rise to a second chiral center and exploiting a "molecular ruler" mechanism.
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===A structural basis for substrate and stereo selectivity in octopine dehydrogenase (ODH-NADH-Pyruvate)===
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A structural basis for substrate selectivity and stereoselectivity in octopine dehydrogenase from Pecten maximus.,Smits SH, Mueller A, Schmitt L, Grieshaber MK J Mol Biol. 2008 Aug 1;381(1):200-11. Epub 2008 Jun 7. PMID:18599075<ref>PMID:18599075</ref>
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{{ABSTRACT_PUBMED_18599075}}
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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==About this Structure==
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<div class="pdbe-citations 3c7d" style="background-color:#fffaf0;"></div>
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[[3c7d]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Pecten_maximus Pecten maximus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3C7D OCA].
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== References ==
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<references/>
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==Reference==
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__TOC__
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<ref group="xtra">PMID:018599075</ref><references group="xtra"/>
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</StructureSection>
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[[Category: D-octopine dehydrogenase]]
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[[Category: Large Structures]]
[[Category: Pecten maximus]]
[[Category: Pecten maximus]]
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[[Category: Grieshaber, M K.]]
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[[Category: Grieshaber MK]]
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[[Category: Mueller, A.]]
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[[Category: Mueller A]]
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[[Category: Schmitt, L.]]
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[[Category: Schmitt L]]
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[[Category: Smits, S H.J.]]
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[[Category: Smits SHJ]]
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[[Category: Oxidoreductase]]
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Current revision

A structural basis for substrate and stereo selectivity in octopine dehydrogenase (ODH-NADH-Pyruvate)

PDB ID 3c7d

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