1gz3

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[[Image:1gz3.jpg|left|200px]]
 
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==Molecular mechanism for the regulation of human mitochondrial NAD(P)+-dependent malic enzyme by ATP and fumarate==
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The line below this paragraph, containing "STRUCTURE_1gz3", creates the "Structure Box" on the page.
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<StructureSection load='1gz3' size='340' side='right'caption='[[1gz3]], [[Resolution|resolution]] 2.30&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1gz3]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1GZ3 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1GZ3 FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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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]] 2.3&#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=ATP:ADENOSINE-5-TRIPHOSPHATE'>ATP</scene>, <scene name='pdbligand=FUM:FUMARIC+ACID'>FUM</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene>, <scene name='pdbligand=OXL:OXALATE+ION'>OXL</scene></td></tr>
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{{STRUCTURE_1gz3| PDB=1gz3 | SCENE= }}
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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=1gz3 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1gz3 OCA], [https://pdbe.org/1gz3 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1gz3 RCSB], [https://www.ebi.ac.uk/pdbsum/1gz3 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1gz3 ProSAT]</span></td></tr>
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</table>
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'''MOLECULAR MECHANISM FOR THE REGULATION OF HUMAN MITOCHONDRIAL NAD(P)+-DEPENDENT MALIC ENZYME BY ATP AND FUMARATE'''
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== Function ==
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[https://www.uniprot.org/uniprot/MAOM_HUMAN MAOM_HUMAN]
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== Evolutionary Conservation ==
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==Overview==
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[[Image:Consurf_key_small.gif|200px|right]]
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The regulation of human mitochondrial NAD(P)+-dependent malic enzyme (m-NAD-ME) by ATP and fumarate may be crucial for the metabolism of glutamine for energy production in rapidly proliferating tissues and tumors. Here we report the crystal structure at 2.2 A resolution of m-NAD-ME in complex with ATP, Mn2+, tartronate, and fumarate. Our structural, kinetic, and mutagenesis studies reveal unexpectedly that ATP is an active-site inhibitor of the enzyme, despite the presence of an exo binding site. The structure also reveals the allosteric binding site for fumarate in the dimer interface. Mutations in this binding site abolished the activating effects of fumarate. Comparison to the structure in the absence of fumarate indicates a possible molecular mechanism for the allosteric function of this compound.
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Check<jmol>
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<jmolCheckbox>
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==About this Structure==
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/gz/1gz3_consurf.spt"</scriptWhenChecked>
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1GZ3 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1GZ3 OCA].
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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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==Reference==
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</jmolCheckbox>
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Molecular mechanism for the regulation of human mitochondrial NAD(P)+-dependent malic enzyme by ATP and fumarate., Yang Z, Lanks CW, Tong L, Structure. 2002 Jul;10(7):951-60. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/12121650 12121650]
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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=1gz3 ConSurf].
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<div style="clear:both"></div>
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__TOC__
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</StructureSection>
[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Lanks, C W.]]
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[[Category: Lanks CW]]
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[[Category: Liang, T.]]
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[[Category: Tong L]]
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[[Category: Yang, Z.]]
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[[Category: Yang Z]]
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[[Category: Allosteric regulation]]
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[[Category: Energy metabolism]]
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[[Category: Kinetic]]
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[[Category: Mitochondrion.]]
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[[Category: Nad]]
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[[Category: Oxidoreductase]]
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[[Category: Protein structure]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Fri May 2 18:12:08 2008''
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Current revision

Molecular mechanism for the regulation of human mitochondrial NAD(P)+-dependent malic enzyme by ATP and fumarate

PDB ID 1gz3

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