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2i0u
From Proteopedia
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==Crystal structures of phospholipases A2 from Vipera nikolskii venom revealing Triton X-100 bound in hydrophobic channel== | ==Crystal structures of phospholipases A2 from Vipera nikolskii venom revealing Triton X-100 bound in hydrophobic channel== | ||
| - | <StructureSection load='2i0u' size='340' side='right' caption='[[2i0u]], [[Resolution|resolution]] 2.20Å' scene=''> | + | <StructureSection load='2i0u' size='340' side='right'caption='[[2i0u]], [[Resolution|resolution]] 2.20Å' scene=''> |
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[2i0u]] is a 2 chain structure with sequence from [ | + | <table><tr><td colspan='2'>[[2i0u]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Vipera_nikolskii Vipera nikolskii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2I0U OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2I0U FirstGlance]. <br> |
| - | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=TFA:TRIFLUOROACETIC+ACID'>TFA</scene>, <scene name='pdbligand=TRT:FRAGMENT+OF+TRITON+X-100'>TRT</scene></td></tr> | + | </td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene>, <scene name='pdbligand=TFA:TRIFLUOROACETIC+ACID'>TFA</scene>, <scene name='pdbligand=TRT:FRAGMENT+OF+TRITON+X-100'>TRT</scene></td></tr> |
| - | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[ | + | <tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[https://en.wikipedia.org/wiki/Phospholipase_A(2) Phospholipase A(2)], with EC number [https://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.1.1.4 3.1.1.4] </span></td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[ | + | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2i0u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2i0u OCA], [https://pdbe.org/2i0u PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2i0u RCSB], [https://www.ebi.ac.uk/pdbsum/2i0u PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2i0u ProSAT]</span></td></tr> |
</table> | </table> | ||
== Function == | == Function == | ||
| - | [[ | + | [[https://www.uniprot.org/uniprot/PA2B1_VIPNI PA2B1_VIPNI]] Heterodimer: shows the same activities as the monomer, but with a lower potency. Monomer: snake venom phospholipase A2 (PLA2) that shows presynaptic neurotoxicity, anticoagulant activity and that weakly inhibits ADP-induced platelet aggregation (PubMed:18083205). Inhibits exocytosis in pancreatic beta cells, confirming it can act presynaptically in inhibiting the exocytosis of neurotransmitters in neurons (PubMed:19500614). PLA2 catalyzes the calcium-dependent hydrolysis of the 2-acyl groups in 3-sn-phosphoglycerides.<ref>PMID:18083205</ref> <ref>PMID:19500614</ref> |
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
Check<jmol> | Check<jmol> | ||
<jmolCheckbox> | <jmolCheckbox> | ||
| - | <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/i0/2i0u_consurf.spt"</scriptWhenChecked> | + | <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/i0/2i0u_consurf.spt"</scriptWhenChecked> |
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | ||
<text>to colour the structure by Evolutionary Conservation</text> | <text>to colour the structure by Evolutionary Conservation</text> | ||
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==See Also== | ==See Also== | ||
| - | *[[Phospholipase A2|Phospholipase A2]] | + | *[[Phospholipase A2 3D structures|Phospholipase A2 3D structures]] |
== References == | == References == | ||
<references/> | <references/> | ||
__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
| + | [[Category: Large Structures]] | ||
[[Category: Vipera nikolskii]] | [[Category: Vipera nikolskii]] | ||
[[Category: Bi, R C]] | [[Category: Bi, R C]] | ||
Current revision
Crystal structures of phospholipases A2 from Vipera nikolskii venom revealing Triton X-100 bound in hydrophobic channel
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