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2p4h

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[[Image:2p4h.gif|left|200px]]
 
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{{Structure
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==Crystal Structure of Vestitone Reductase from Alfalfa (Medicago sativa L.)==
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|PDB= 2p4h |SIZE=350|CAPTION= <scene name='initialview01'>2p4h</scene>, resolution 1.40&Aring;
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<StructureSection load='2p4h' size='340' side='right'caption='[[2p4h]], [[Resolution|resolution]] 1.40&Aring;' scene=''>
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|SITE=
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== Structural highlights ==
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|LIGAND=
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<table><tr><td colspan='2'>[[2p4h]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Medicago_sativa Medicago sativa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2P4H OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2P4H FirstGlance]. <br>
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|ACTIVITY=
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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]] 1.4&#8491;</td></tr>
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|GENE= Vestitone Reductase ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=3879 Medicago sativa])
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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=2p4h FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2p4h OCA], [https://pdbe.org/2p4h PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2p4h RCSB], [https://www.ebi.ac.uk/pdbsum/2p4h PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2p4h ProSAT]</span></td></tr>
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}}
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</table>
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== Function ==
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'''Crystal Structure of Vestitone Reductase from Alfalfa (Medicago sativa L.)'''
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[https://www.uniprot.org/uniprot/VESTR_MEDSA VESTR_MEDSA] Stereospecific enzyme that catalyzes the NADPH-dependent reduction of (3R)-vestitone to (3R,4R)-4'-methoxyisoflavan-2',4,7-triol (DMI). Has no activity with (3S)-vestitone. Catalyzes the penultimate step in the biosynthesis of the phytoalexin medicarpin, and thereby contributes to plant defense reactions.<ref>PMID:7625843</ref> <ref>PMID:7805842</ref> <ref>PMID:8071365</ref>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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==Overview==
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Check<jmol>
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Isoflavonoids are commonly found in leguminous plants, where they play important roles in plant defense and have significant health benefits for animals and humans. Vestitone reductase catalyzes a stereospecific NADPH-dependent reduction of (3R)-vestitone in the biosynthesis of the antimicrobial isoflavonoid phytoalexin medicarpin. The crystal structure of alfalfa (Medicago sativa L.) vestitone reductase has been determined at 1.4 A resolution. The structure contains a classic Rossmann fold domain in the N terminus and a small C-terminal domain. Sequence and structural analysis showed that vestitone reductase is a member of the short-chain dehydrogenase/reductase (SDR) superfamily despite the low levels of sequence identity, and the prominent structural differences from other SDR enzymes with known structures. The putative binding sites for the co-factor NADPH and the substrate (3R)-vestitone were defined and located in a large cleft formed between the N and C-terminal domains of enzyme. Potential key residues for enzyme activity were also identified, including the catalytic triad Ser129-Tyr164-Lys168. A molecular docking study showed that (3R)-vestitone, but not the (3S) isomer, forms favored interactions with the co-factor and catalytic triad, thus providing an explanation for the enzyme's strict substrate stereo-specificity.
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/p4/2p4h_consurf.spt"</scriptWhenChecked>
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==About this Structure==
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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2P4H is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Medicago_sativa Medicago sativa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2P4H OCA].
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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==Reference==
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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=2p4h ConSurf].
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Crystal structure of vestitone reductase from alfalfa (Medicago sativa L.)., Shao H, Dixon RA, Wang X, J Mol Biol. 2007 May 25;369(1):265-76. Epub 2007 Mar 21. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/17433362 17433362]
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<div style="clear:both"></div>
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== References ==
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<references/>
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__TOC__
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</StructureSection>
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[[Category: Large Structures]]
[[Category: Medicago sativa]]
[[Category: Medicago sativa]]
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[[Category: Single protein]]
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[[Category: Dixon RA]]
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[[Category: Dixon, R A.]]
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[[Category: Shao H]]
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[[Category: Shao, H.]]
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[[Category: Wang X]]
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[[Category: Wang, X.]]
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[[Category: crystal structure]]
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[[Category: isoflavonoid]]
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[[Category: nadph-dependent reductase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Thu Mar 20 18:08:30 2008''
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Current revision

Crystal Structure of Vestitone Reductase from Alfalfa (Medicago sativa L.)

PDB ID 2p4h

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