1pob
From Proteopedia
(Difference between revisions)
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<StructureSection load='1pob' size='340' side='right'caption='[[1pob]], [[Resolution|resolution]] 2.00Å' scene=''> | <StructureSection load='1pob' size='340' side='right'caption='[[1pob]], [[Resolution|resolution]] 2.00Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
| - | <table><tr><td colspan='2'>[[1pob]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/ | + | <table><tr><td colspan='2'>[[1pob]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Naja_atra Naja atra]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1POB OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1POB FirstGlance]. <br> |
| - | </td></tr><tr id=' | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2Å</td></tr> |
| - | <tr id=' | + | <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=GEL:1-O-OCTYL-2-HEPTYLPHOSPHONYL-SN-GLYCERO-3-PHOSPHOETHANOLAMINE'>GEL</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=1pob FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1pob OCA], [https://pdbe.org/1pob PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1pob RCSB], [https://www.ebi.ac.uk/pdbsum/1pob PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1pob 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=1pob FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1pob OCA], [https://pdbe.org/1pob PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1pob RCSB], [https://www.ebi.ac.uk/pdbsum/1pob PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1pob ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | == Function == | ||
| - | + | [https://www.uniprot.org/uniprot/PA2A1_NAJAT PA2A1_NAJAT] Snake venom phospholipase A2 (PLA2) that has high affinity for muscarinic acetylcholine receptors mAChRs (CHRM) and has the ability to activate them. In guinea-pig ileum, produces an onset and dose-dependent contraction. Has also weak anticoagulant activity. PLA2 catalyzes the calcium-dependent hydrolysis of the 2-acyl groups in 3-sn-phosphoglycerides.<ref>PMID:18281071</ref> <ref>PMID:3117784</ref> | |
== Evolutionary Conservation == | == Evolutionary Conservation == | ||
[[Image:Consurf_key_small.gif|200px|right]] | [[Image:Consurf_key_small.gif|200px|right]] | ||
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</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=1pob ConSurf]. | </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=1pob ConSurf]. | ||
<div style="clear:both"></div> | <div style="clear:both"></div> | ||
| - | <div style="background-color:#fffaf0;"> | ||
| - | == Publication Abstract from PubMed == | ||
| - | The crystal structure of a complex between a phosphonate transition-state analogue and the phospholipase A2 (PLA2) from Naja naja atra venom has been solved and refined to a resolution of 2.0 angstroms. The identical stereochemistry of the two complexes that comprise the crystal's asymmetric unit indicates both the manner in which the transition state is stabilized and how the hydrophobic fatty acyl chains of the substrate are accommodated by the enzyme during interfacial catalysis. The critical features that suggest the chemistry of binding and catalysis are the same as those seen in the crystal structure of a similar complex formed with the evolutionarily distant bee-venom PLA2. | ||
| - | |||
| - | Crystal structure of cobra-venom phospholipase A2 in a complex with a transition-state analogue.,White SP, Scott DL, Otwinowski Z, Gelb MH, Sigler PB Science. 1990 Dec 14;250(4987):1560-3. PMID:2274787<ref>PMID:2274787</ref> | ||
| - | |||
| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | ||
| - | </div> | ||
| - | <div class="pdbe-citations 1pob" style="background-color:#fffaf0;"></div> | ||
==See Also== | ==See Also== | ||
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__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
| - | [[Category: Ansp 6988]] | ||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
| - | [[Category: | + | [[Category: Naja atra]] |
| - | [[Category: | + | [[Category: Otwinowski Z]] |
| - | [[Category: | + | [[Category: Scott DL]] |
| - | [[Category: | + | [[Category: Sigler PB]] |
| - | [[Category: | + | [[Category: White SP]] |
Revision as of 05:57, 17 April 2024
CRYSTAL STRUCTURE OF COBRA-VENOM PHOSPHOLIPASE A2 IN A COMPLEX WITH A TRANSITION-STATE ANALOGUE
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