View source for 1los


==crystal structure of orotidine monophosphate decarboxylase mutant deltaR203A complexed with 6-azaUMP==
<StructureSection load='1los' size='340' side='right'caption='[[1los]], [[Resolution|resolution]] 1.90&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[1los]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Metth Metth]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1LOS OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1LOS FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=UP6:6-AZA+URIDINE+5-MONOPHOSPHATE'>UP6</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1lol|1lol]], [[1loq|1loq]], [[1lor|1lor]], [[1lp6|1lp6]]</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Orotidine-5'-phosphate_decarboxylase Orotidine-5'-phosphate decarboxylase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=4.1.1.23 4.1.1.23] </span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1los FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1los OCA], [http://pdbe.org/1los PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1los RCSB], [http://www.ebi.ac.uk/pdbsum/1los PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1los ProSAT]</span></td></tr>
</table>
== Function ==
[[http://www.uniprot.org/uniprot/PYRF_METTH PYRF_METTH]] Catalyzes the decarboxylation of orotidine 5'-monophosphate (OMP) to uridine 5'-monophosphate (UMP).[HAMAP-Rule:MF_01200_A] 
== 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/lo/1los_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/main_output.php?pdb_ID=1los ConSurf].
<div style="clear:both"></div>
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== Publication Abstract from PubMed ==
The crystal structures of the enzyme orotidine-5'-monophosphate decarboxylase from Methanobacterium thermoautotrophicum complexed with its product UMP and the inhibitors 6-hydroxyuridine 5'-phosphate (BMP), XMP, and CMP are reported. A mutant version of the protein, in which four residues of the flexible phosphate-binding loop (180)Gly-Gly(190) were removed and Arg(203) was replaced by alanine, was also analyzed. The XMP and CMP complexes reveal a ligand-binding mode that is distinct from the one identified previously with the aromatic rings located outside the binding pocket. A potential pathway for ligand binding is discussed.

Crystal structures of inhibitor complexes reveal an alternate binding mode in orotidine-5'-monophosphate decarboxylase.,Wu N, Pai EF J Biol Chem. 2002 Aug 2;277(31):28080-7. Epub 2002 May 13. PMID:12011084<ref>PMID:12011084</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 1los" style="background-color:#fffaf0;"></div>

==See Also==
*[[Uridine 5'-monophosphate synthase|Uridine 5'-monophosphate synthase]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Metth]]
[[Category: Orotidine-5'-phosphate decarboxylase]]
[[Category: Pai, E F]]
[[Category: Wu, N]]
[[Category: Lyase]]
[[Category: Tim barrel]]