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1ow2

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[[Image:1ow2.jpg|left|200px]]
 
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==STRUCTURE AND MECHANISM OF ACTION OF ISOPENTENYLPYROPHOSPHATE-DIMETHYLALLYLPYROPHOSPHATE ISOMERASE: COMPLEX OF C67A MUTANT WITH EIPP==
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The line below this paragraph, containing "STRUCTURE_1ow2", creates the "Structure Box" on the page.
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<StructureSection load='1ow2' size='340' side='right'caption='[[1ow2]], [[Resolution|resolution]] 2.00&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'>[[1ow2]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OW2 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1OW2 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&#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=EIP:4-HYDROXY-3-METHYL+BUTYL+DIPHOSPHATE'>EIP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=MN:MANGANESE+(II)+ION'>MN</scene></td></tr>
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{{STRUCTURE_1ow2| PDB=1ow2 | 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=1ow2 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ow2 OCA], [https://pdbe.org/1ow2 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ow2 RCSB], [https://www.ebi.ac.uk/pdbsum/1ow2 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ow2 ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/IDI_ECOLI IDI_ECOLI] Catalyzes the 1,3-allylic rearrangement of the homoallylic substrate isopentenyl (IPP) to its highly electrophilic allylic isomer, dimethylallyl diphosphate (DMAPP).<ref>PMID:10099534</ref> <ref>PMID:9603997</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/ow/1ow2_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=1ow2 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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Isopentenyl diphosphate:dimethylallyl diphosphate (IPP:DMAPP) isomerase is a key enzyme in the biosynthesis of isoprenoids. The mechanism of the isomerization reaction involves protonation of the unactivated carbon-carbon double bond in the substrate. Analysis of the 1.97 A crystal structure of the inactive C67A mutant of E. coli isopentenyl diphosphate:dimethylallyl diphosphate isomerase complexed with the mechanism-based inactivator 3,4-epoxy-3-methyl-1-butyl diphosphate is in agreement with an isomerization mechanism involving Glu 116, Tyr 104, and Cys 67. In particular, the results are consistent with a mechanism where Glu116 is involved in the protonation step and Cys67 in the elimination step.
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'''STRUCTURE AND MECHANISM OF ACTION OF ISOPENTENYLPYROPHOSPHATE-DIMETHYLALLYLPYROPHOSPHATE ISOMERASE: COMPLEX OF C67A MUTANT WITH EIPP'''
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Crystal structure of the C67A mutant of isopentenyl diphosphate isomerase complexed with a mechanism-based irreversible inhibitor.,Wouters J, Oudjama Y, Stalon V, Droogmans L, Poulter CD Proteins. 2004 Feb 1;54(2):216-21. PMID:14696183<ref>PMID:14696183</ref>
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==Overview==
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Isopentenyl diphosphate:dimethylallyl diphosphate (IPP:DMAPP) isomerase is a key enzyme in the biosynthesis of isoprenoids. The mechanism of the isomerization reaction involves protonation of the unactivated carbon-carbon double bond in the substrate. Analysis of the 1.97 A crystal structure of the inactive C67A mutant of E. coli isopentenyl diphosphate:dimethylallyl diphosphate isomerase complexed with the mechanism-based inactivator 3,4-epoxy-3-methyl-1-butyl diphosphate is in agreement with an isomerization mechanism involving Glu 116, Tyr 104, and Cys 67. In particular, the results are consistent with a mechanism where Glu116 is involved in the protonation step and Cys67 in the elimination step.
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==About this Structure==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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1OW2 is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OW2 OCA].
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</div>
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<div class="pdbe-citations 1ow2" style="background-color:#fffaf0;"></div>
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==Reference==
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==See Also==
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Crystal structure of the C67A mutant of isopentenyl diphosphate isomerase complexed with a mechanism-based irreversible inhibitor., Wouters J, Oudjama Y, Stalon V, Droogmans L, Poulter CD, Proteins. 2004 Feb 1;54(2):216-21. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/14696183 14696183]
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*[[Isopentenyl-diphosphate delta-isomerase|Isopentenyl-diphosphate delta-isomerase]]
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
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[[Category: Isopentenyl-diphosphate Delta-isomerase]]
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[[Category: Large Structures]]
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[[Category: Single protein]]
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[[Category: Wouters J]]
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[[Category: Wouters, J.]]
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[[Category: Complex]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 04:20:42 2008''
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Current revision

STRUCTURE AND MECHANISM OF ACTION OF ISOPENTENYLPYROPHOSPHATE-DIMETHYLALLYLPYROPHOSPHATE ISOMERASE: COMPLEX OF C67A MUTANT WITH EIPP

PDB ID 1ow2

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