View source for 2yr5


==Crystal structure of L-phenylalanine oxidase from Psuedomonas sp.P501==
<StructureSection load='2yr5' size='340' side='right'caption='[[2yr5]], [[Resolution|resolution]] 1.25&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[2yr5]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Pseudomonas_sp._P-501 Pseudomonas sp. P-501]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2YR5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2YR5 FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 1.25&#8491;</td></tr>
<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=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2yr5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2yr5 OCA], [https://pdbe.org/2yr5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2yr5 RCSB], [https://www.ebi.ac.uk/pdbsum/2yr5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2yr5 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/PAO_PSESP PAO_PSESP] Catalyzes both oxygenative decarboxylation and oxidative deamination, depending on the substrate used. Has high activity for L-Phe and L-Tyr, but relatively low activities for L-Met and L-Trp. L-Phe is mainly oxygenated and L-Met is mainly oxidized.<ref>PMID:15632301</ref> <ref>PMID:16567420</ref> <ref>PMID:3818566</ref> <ref>PMID:6501250</ref> <ref>PMID:6885723</ref> <ref>PMID:7174643</ref> 
== 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/yr/2yr5_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=2yr5 ConSurf].
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== Publication Abstract from PubMed ==
The mature form of l-phenylalanine oxidase (PAOpt) from Pseudomonas sp. P-501 was generated and activated by the proteolytic cleavage of a noncatalytic proenzyme (proPAO). The crystal structures of proPAO, PAOpt, and the PAOpt-o-amino benzoate (AB) complex were determined at 1.7, 1.25, and 1.35A resolutions, respectively. The structure of proPAO suggests that the prosequence peptide of proPAO occupies the funnel (pathway) of the substrate amino acid from the outside of the protein to the interior flavin ring, whereas the funnel is closed with the hydrophobic residues at its vestibule in both PAOpt and the PAOpt-AB complex. All three structures have an oxygen channel that is open to the surface of the protein from the flavin ring. These results suggest that structural changes were induced by proteolysis; that is, the proteolysis of proPAO removes the prosequence and closes the funnel to keep the active site hydrophobic but keeps the oxygen channel open. The possibility that an interaction of the hydrophobic side chain of substrate with the residues of the vestibule region may open the funnel as a putative amino acid channel is discussed.

Structural basis of proteolytic activation of L-phenylalanine oxidase from Pseudomonas sp. P-501.,Ida K, Kurabayashi M, Suguro M, Hiruma Y, Hikima T, Yamomoto M, Suzuki H J Biol Chem. 2008 Jun 13;283(24):16584-90. doi: 10.1074/jbc.M800366200. Epub 2008, Apr 16. PMID:18417467<ref>PMID:18417467</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Pseudomonas sp. P-501]]
[[Category: Hikima T]]
[[Category: Ida K]]
[[Category: Kurabayashi M]]
[[Category: Suguro M]]
[[Category: Suzuki H]]
[[Category: Yamamoto M]]