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2uuu

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[[Image:2uuu.gif|left|200px]]<br />
 
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<applet load="2uuu" size="450" color="white" frame="true" align="right" spinBox="true"
 
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caption="2uuu, resolution 1.95&Aring;" />
 
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'''ALKYLDIHYDROXYACETONEPHOSPHATE SYNTHASE IN P212121'''<br />
 
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==Overview==
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==alkyldihydroxyacetonephosphate synthase in P212121==
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Ether phospholipids are essential constituents of eukaryotic cell, membranes. Rhizomelic chondrodysplasia punctata type 3 is a severe, peroxisomal disorder caused by inborn deficiency of, alkyldihydroxyacetonephosphate synthase (ADPS). The enzyme carries out the, most characteristic step in ether phospholipid biosynthesis: formation of, the ether bond. The crystal structure of ADPS from Dictyostelium, discoideum shows a fatty-alcohol molecule bound in a narrow hydrophobic, tunnel, specific for aliphatic chains of 16 carbons. Access to the tunnel, is controlled by a flexible loop and a gating helix at the, protein-membrane interface. Structural and mutagenesis investigations, identify a cluster of hydrophilic catalytic residues, including an, essential tyrosine, possibly involved in ... [[http://ispc.weizmann.ac.il/pmbin/getpm?17562315 (full description)]]
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<StructureSection load='2uuu' size='340' side='right'caption='[[2uuu]], [[Resolution|resolution]] 1.95&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2uuu]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Dictyostelium_discoideum Dictyostelium discoideum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2UUU OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2UUU 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]] 1.95&#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=FAD:FLAVIN-ADENINE+DINUCLEOTIDE'>FAD</scene>, <scene name='pdbligand=PL3:HEXADECAN-1-OL'>PL3</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=2uuu FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2uuu OCA], [https://pdbe.org/2uuu PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2uuu RCSB], [https://www.ebi.ac.uk/pdbsum/2uuu PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2uuu ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/ADAS_DICDI ADAS_DICDI] Catalyzes the exchange of an acyl for a long-chain alkyl group and the formation of the ether bond in the biosynthesis of ether phospholipids.
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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/uu/2uuu_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=2uuu 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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Ether phospholipids are essential constituents of eukaryotic cell membranes. Rhizomelic chondrodysplasia punctata type 3 is a severe peroxisomal disorder caused by inborn deficiency of alkyldihydroxyacetonephosphate synthase (ADPS). The enzyme carries out the most characteristic step in ether phospholipid biosynthesis: formation of the ether bond. The crystal structure of ADPS from Dictyostelium discoideum shows a fatty-alcohol molecule bound in a narrow hydrophobic tunnel, specific for aliphatic chains of 16 carbons. Access to the tunnel is controlled by a flexible loop and a gating helix at the protein-membrane interface. Structural and mutagenesis investigations identify a cluster of hydrophilic catalytic residues, including an essential tyrosine, possibly involved in substrate proton abstraction, and the arginine that is mutated in ADPS-deficient patients. We propose that ether bond formation might be orchestrated through a covalent imine intermediate with the flavin, accounting for the noncanonical employment of a flavin cofactor in a nonredox reaction.
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==About this Structure==
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The crucial step in ether phospholipid biosynthesis: structural basis of a noncanonical reaction associated with a peroxisomal disorder.,Razeto A, Mattiroli F, Carpanelli E, Aliverti A, Pandini V, Coda A, Mattevi A Structure. 2007 Jun;15(6):683-92. PMID:17562315<ref>PMID:17562315</ref>
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2UUU is a [[http://en.wikipedia.org/wiki/Single_protein Single protein]] structure of sequence from [[http://en.wikipedia.org/wiki/Dictyostelium_discoideum Dictyostelium discoideum]] with FAD and PL3 as [[http://en.wikipedia.org/wiki/ligands ligands]]. Active as [[http://en.wikipedia.org/wiki/Alkylglycerone-phosphate_synthase Alkylglycerone-phosphate synthase]], with EC number [[http://www.brenda-enzymes.info/php/result_flat.php4?ecno=2.5.1.26 2.5.1.26]]. Structure known Active Site: AC1. Full crystallographic information is available from [[http://ispc.weizmann.ac.il/oca-bin/ocashort?id=2UUU OCA]].
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==Reference==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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The crucial step in ether phospholipid biosynthesis: structural basis of a noncanonical reaction associated with a peroxisomal disorder., Razeto A, Mattiroli F, Carpanelli E, Aliverti A, Pandini V, Coda A, Mattevi A, Structure. 2007 Jun;15(6):683-92. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=17562315 17562315]
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</div>
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[[Category: Alkylglycerone-phosphate synthase]]
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<div class="pdbe-citations 2uuu" style="background-color:#fffaf0;"></div>
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== References ==
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<references/>
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__TOC__
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</StructureSection>
[[Category: Dictyostelium discoideum]]
[[Category: Dictyostelium discoideum]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Aliverti, A.]]
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[[Category: Aliverti A]]
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[[Category: Carpanelli, E.]]
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[[Category: Carpanelli E]]
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[[Category: Coda, A.]]
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[[Category: Coda A]]
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[[Category: Mattevi, A.]]
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[[Category: Mattevi A]]
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[[Category: Mattiroli, F.]]
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[[Category: Mattiroli F]]
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[[Category: Pandini, V.]]
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[[Category: Pandini V]]
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[[Category: Razeto, A.]]
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[[Category: Razeto A]]
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[[Category: FAD]]
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[[Category: PL3]]
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[[Category: biosynthesis of phospholipids]]
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[[Category: fad]]
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[[Category: flavin]]
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[[Category: flavoprotein]]
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[[Category: lipid synthesis]]
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[[Category: peroxisomal disorder]]
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[[Category: peroxisome]]
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[[Category: plasmalogens]]
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[[Category: rhizomelic chondrodysplasia punctata]]
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[[Category: transferase]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Tue Oct 30 17:37:17 2007''
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Current revision

alkyldihydroxyacetonephosphate synthase in P212121

PDB ID 2uuu

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