1c0k: Difference between revisions

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-[[Image:1c0k.png|left|200px]]
+==CRYSTAL STRUCTURE ANALYSIS OF D-AMINO ACID OXIDASE IN COMPLEX WITH L-LACTATE==
+<StructureSection load='1c0k' size='340' side='right' caption='[[1c0k]], [[Resolution|resolution]] 1.46&Aring;' scene=''>
+== Structural highlights ==
+<table><tr><td colspan='2'>[[1c0k]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Rhodosporidium_toruloides Rhodosporidium toruloides]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1C0K OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1C0K FirstGlance]. <br>
+</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=FAD:FLAVIN-ADENINE+DINUCLEOTIDE'>FAD</scene>, <scene name='pdbligand=LAC:LACTIC+ACID'>LAC</scene><br>
+<tr><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/D-amino-acid_oxidase D-amino-acid oxidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=1.4.3.3 1.4.3.3] </span></td></tr>
+<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1c0k FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1c0k OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1c0k RCSB], [http://www.ebi.ac.uk/pdbsum/1c0k PDBsum]</span></td></tr>
+<table>
+== Evolutionary Conservation ==
+[[Image:Consurf_key_small.gif|200px|right]]
+Check<jmol>
+  <jmolCheckbox>
+    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/c0/1c0k_consurf.spt"</scriptWhenChecked>
+    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
+    <text>to colour the structure by Evolutionary Conservation</text>
+  </jmolCheckbox>
+</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/chain_selection.php?pdb_ID=2ata ConSurf].
+<div style="clear:both"></div>
+<div style="background-color:#fffaf0;">
+== Publication Abstract from PubMed ==
+Flavin is one of the most versatile redox cofactors in nature and is used by many enzymes to perform a multitude of chemical reactions. d-Amino acid oxidase (DAAO), a member of the flavoprotein oxidase family, is regarded as a key enzyme for the understanding of the mechanism underlying flavin catalysis. The very high-resolution structures of yeast DAAO complexed with d-alanine, d-trifluoroalanine, and l-lactate (1.20, 1.47, and 1.72 A) provide strong evidence for hydride transfer as the mechanism of dehydrogenation. This is inconsistent with the alternative carbanion mechanism originally favored for this type of enzymatic reaction. The step of hydride transfer can proceed without involvement of amino acid functional groups. These structures, together with results from site-directed mutagenesis, point to orbital orientation/steering as the major factor in catalysis. A diatomic species, proposed to be a peroxide, is found at the active center and on the Re-side of the flavin. These results are of general relevance for the mechanisms of flavoproteins and lead to the proposal of a common dehydrogenation mechanism for oxidases and dehydrogenases.
-{{STRUCTURE_1c0k|  PDB=1c0k  |  SCENE=  }}
+The x-ray structure of D-amino acid oxidase at very high resolution identifies the chemical mechanism of flavin-dependent substrate dehydrogenation.,Umhau S, Pollegioni L, Molla G, Diederichs K, Welte W, Pilone MS, Ghisla S Proc Natl Acad Sci U S A. 2000 Nov 7;97(23):12463-8. PMID:11070076<ref>PMID:11070076</ref>
-===CRYSTAL STRUCTURE ANALYSIS OF D-AMINO ACID OXIDASE IN COMPLEX WITH L-LACTATE===
+From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
+</div>
-{{ABSTRACT_PUBMED_11070076}}
-==About this Structure==
-[[1c0k]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Rhodosporidium_toruloides Rhodosporidium toruloides]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1C0K OCA].
 ==See Also==
 *[[Amino acid oxidase|Amino acid oxidase]]
+== References ==
-==Reference==
+<references/>
-<ref group="xtra">PMID:011070076</ref><references group="xtra"/>
+__TOC__
+</StructureSection>
 [[Category: D-amino-acid oxidase]]
 [[Category: Rhodosporidium toruloides]]