4g33
From Proteopedia
(Difference between revisions)
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== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[4g33]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Pseudomonas_aeruginosa Pseudomonas aeruginosa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4G33 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4G33 FirstGlance]. <br> | <table><tr><td colspan='2'>[[4g33]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Pseudomonas_aeruginosa Pseudomonas aeruginosa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4G33 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4G33 FirstGlance]. <br> | ||
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FE2:FE+(II)+ION'>FE2</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=ZPE:(2R)-3-{[(S)-(2-AMINOETHOXY)(HYDROXY)PHOSPHORYL]OXY}-2-(TETRADEC-5-ENOYLOXY)PROPYL+(11Z)-OCTADEC-11-ENOATE'>ZPE</scene></td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.03Å</td></tr> |
| + | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FE2:FE+(II)+ION'>FE2</scene>, <scene name='pdbligand=GOL:GLYCEROL'>GOL</scene>, <scene name='pdbligand=ZPE:(2R)-3-{[(S)-(2-AMINOETHOXY)(HYDROXY)PHOSPHORYL]OXY}-2-(TETRADEC-5-ENOYLOXY)PROPYL+(11Z)-OCTADEC-11-ENOATE'>ZPE</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=4g33 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4g33 OCA], [https://pdbe.org/4g33 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4g33 RCSB], [https://www.ebi.ac.uk/pdbsum/4g33 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4g33 ProSAT]</span></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=4g33 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4g33 OCA], [https://pdbe.org/4g33 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4g33 RCSB], [https://www.ebi.ac.uk/pdbsum/4g33 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4g33 ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
[https://www.uniprot.org/uniprot/LOX_PSEAI LOX_PSEAI] In presence of oxygen, converts oleic acid into (S)-(E)-10-hydroperoxy-8-octadecenoic acid (HPOD), which spontaneously decomposes to the corresponding (E)-10-hydroxy-8-octadecenoic acid (HOD). In vivo, the reaction leads to the dihydroxy derivative (E)-7,10-dihydroxy-8-octadecenoic acid (DHOD), so that the three hydroxy-fatty acids can be isolated from the culture medium. Also active on linoleic acid and linolenic acid. Almost not active on arachidonic acid. | [https://www.uniprot.org/uniprot/LOX_PSEAI LOX_PSEAI] In presence of oxygen, converts oleic acid into (S)-(E)-10-hydroperoxy-8-octadecenoic acid (HPOD), which spontaneously decomposes to the corresponding (E)-10-hydroxy-8-octadecenoic acid (HOD). In vivo, the reaction leads to the dihydroxy derivative (E)-7,10-dihydroxy-8-octadecenoic acid (DHOD), so that the three hydroxy-fatty acids can be isolated from the culture medium. Also active on linoleic acid and linolenic acid. Almost not active on arachidonic acid. | ||
| - | <div style="background-color:#fffaf0;"> | ||
| - | == Publication Abstract from PubMed == | ||
| - | Lipoxygenases (LOXs), which are essential in eukaryotes, have no confirmed function in prokaryotes that are devoid of polyunsaturated fatty acids. The structure of a secretable LOX from Pseudomonas aeruginosa (Pa_LOX), the first available from a prokaryote, presents significant differences with respect to eukaryotic LOXs, including a cluster of helices acting as a lid to the active center. The mobility of the lid and the structural variability of the N-terminal region of Pa_LOX was confirmed by comparing 2 crystal forms. The binding pocket contains a phosphatidylethanolamine phospholipid with branches of 18 (sn-1) and 14/16 (sn-2) carbon atoms in length. Carbon atoms from the sn-1 chain approach the catalytic iron in a manner that sheds light on how the enzymatic reaction might proceed. The findings in these studies suggest that Pa_LOX has the capacity to extract and modify unsaturated phospholipids from eukaryotic membranes, allowing this LOX to play a role in the interaction of P. aeruginosa with host cells.-Garreta, A., Val-Moraes, S. P., Garcia-Fernandez, Q., Montserrat Busquets, C. J., Oliver, A., Ortiz, A., Gaffney, B. J., Fita, I., Manresa, A., Carpena, X. Structure and interaction with phospholipids of a prokaryotic lipoxygenase from Pseudomonas aeruginosa. | ||
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| - | Structure and interaction with phospholipids of a prokaryotic lipoxygenase from Pseudomonas aeruginosa.,Garreta A, Val-Moraes SP, Garcia-Fernandez Q, Busquets M, Juan C, Oliver A, Ortiz A, Gaffney BJ, Fita I, Manresa A, Carpena X FASEB J. 2013 Aug 30. PMID:23985801<ref>PMID:23985801</ref> | ||
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| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| - | </div> | ||
| - | <div class="pdbe-citations 4g33" style="background-color:#fffaf0;"></div> | ||
| - | == References == | ||
| - | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
Current revision
Crystal Structure of a Phospholipid-Lipoxygenase Complex from Pseudomonas aeruginosa at 2.0 A (C2221)
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