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==Crystal structure of Loxosceles intermedia phospholipase D isoform 1 H12A mutant==
==Crystal structure of Loxosceles intermedia phospholipase D isoform 1 H12A mutant==
<StructureSection load='3rlg' size='340' side='right' caption='[[3rlg]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
<StructureSection load='3rlg' size='340' side='right'caption='[[3rlg]], [[Resolution|resolution]] 1.60&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[3rlg]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Loxosceles_intermedia Loxosceles intermedia]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3RLG OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3RLG FirstGlance]. <br>
<table><tr><td colspan='2'>[[3rlg]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Loxosceles_intermedia Loxosceles intermedia]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3RLG OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3RLG FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=PEG:DI(HYDROXYETHYL)ETHER'>PEG</scene>, <scene name='pdbligand=PGE:TRIETHYLENE+GLYCOL'>PGE</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]] 1.6&#8491;</td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[3rlh|3rlh]]</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=PEG:DI(HYDROXYETHYL)ETHER'>PEG</scene>, <scene name='pdbligand=PGE:TRIETHYLENE+GLYCOL'>PGE</scene></td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Sphingomyelin_phosphodiesterase_D Sphingomyelin phosphodiesterase D], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.4.41 3.1.4.41] </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=3rlg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3rlg OCA], [https://pdbe.org/3rlg PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3rlg RCSB], [https://www.ebi.ac.uk/pdbsum/3rlg PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3rlg ProSAT]</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=3rlg FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3rlg OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3rlg RCSB], [http://www.ebi.ac.uk/pdbsum/3rlg PDBsum]</span></td></tr>
</table>
</table>
== Function ==
[https://www.uniprot.org/uniprot/A1HA_LOXIN A1HA_LOXIN] Catalyzes the hydrolysis of sphingomyelin, lysophosphatidylcholine, and lyso-platelet activating factor but not that of phosphatidylcholine. Shows a high enzymatic activity. Induces dermonecrosis, blood vessel permeability and platelet aggregation (PubMed:9790962). Is directly toxic to kidney (PubMed:16005484) and liver (PubMed:18765244). Also induces hemolysis in a complement-dependent manner (PubMed:9790962) as well as in a complement-independent manner. The hemolysis provoked in a complement-independent manner is composed of several steps. The toxin binds to erythrocyte membranes, hydrolyzes membrane phospholipids (sphingomyelin and lysophosphatidylcholine) thus generating metabolism products that cause hemolysis, probably by provoking an increase of calcium inside cells. The calcium influx is due to the opening of L-type calcium channels, since L-type calcium channel blockers inhibit calcium influx (PubMed:21590705).<ref>PMID:16005484</ref> <ref>PMID:18760322</ref> <ref>PMID:18765244</ref> <ref>PMID:19455508</ref> <ref>PMID:21590705</ref> <ref>PMID:9790962</ref>
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<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
</div>
<div class="pdbe-citations 3rlg" style="background-color:#fffaf0;"></div>


==See Also==
==See Also==
*[[Phospholipase D 3D structures|Phospholipase D 3D structures]]
*[[Sphingomyelinase|Sphingomyelinase]]
*[[Sphingomyelinase|Sphingomyelinase]]
== References ==
== References ==
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__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Large Structures]]
[[Category: Loxosceles intermedia]]
[[Category: Loxosceles intermedia]]
[[Category: Sphingomyelin phosphodiesterase D]]
[[Category: Arni RK]]
[[Category: Arni, R K]]
[[Category: Giuseppe PO]]
[[Category: Giuseppe, P O]]
[[Category: Murakami MT]]
[[Category: Murakami, M T]]
[[Category: Ullah A]]
[[Category: Ullah, A]]
[[Category: Veiga SS]]
[[Category: Veiga, S S]]
[[Category: Hydrolase]]
[[Category: Inactive mutant h12a phospholipase d]]
[[Category: Plc-like phosphodiesterase]]
[[Category: Tim beta/alpha-barrel]]

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