1vip

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{{Seed}}
 
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[[Image:1vip.png|left|200px]]
 
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==ANTICOAGULANT CLASS II PHOSPHOLIPASE A2 FROM THE VENOM OF VIPERA RUSSELLI RUSSELLI==
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The line below this paragraph, containing "STRUCTURE_1vip", creates the "Structure Box" on the page.
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<StructureSection load='1vip' size='340' side='right'caption='[[1vip]], [[Resolution|resolution]] 2.20&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[1vip]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Daboia_russelii_russelii Daboia russelii russelii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1VIP OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1VIP FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.2&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
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{{STRUCTURE_1vip| PDB=1vip | SCENE= }}
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1vip FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1vip OCA], [https://pdbe.org/1vip PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1vip RCSB], [https://www.ebi.ac.uk/pdbsum/1vip PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1vip ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/PA2B_DABRR PA2B_DABRR] Snake venom phospholipase A2 (PLA2) that has low enzymatic activity, is devoid of lethal activity but has strong anticoagulant activity. PLA2 catalyzes the calcium-dependent hydrolysis of the 2-acyl groups in 3-sn-phosphoglycerides.<ref>PMID:8835338</ref>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/vi/1vip_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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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=1vip ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The three-dimensional structures of the class II anticoagulant phospholipase A2 (PLA2) toxin RVV-VD from the venom of Russell's viper, Vipera russelli russelli, and the class I neurotoxic PLA2 Notechis II-5 from the, Australian tiger snake, Notechis scutatus scutatus, were determined to 2.2 A and 3.0 A resolution, respectively. Both enzymes are monomeric and consist of 121 and 119 residues, respectively. A comparison of ten class I/II PLA2 structures showed, among other differences, that the beta-sheet of these enzymes (residues 76-83) is about 90 degrees less twisted in class I than in class II PLA2s. This, along with the insertion of some residues in the region 57-59 in class I enzymes (the elapid loop), could be the main reason for the significant difference in the anticoagulant and (presynaptic) neurotoxic properties between the two classes of PLA2. It seems apparent from sequence and structural comparisons that the toxic site of PLA2 responsible for the strong anticoagulancy of these toxins consists of a negatively charged part, Glu53, together with a positively charged ridge of lysine residues free for intermolecular interactions. These lysines differ between the two classes of PLA2.
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===ANTICOAGULANT CLASS II PHOSPHOLIPASE A2 FROM THE VENOM OF VIPERA RUSSELLI RUSSELLI===
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The three-dimensional structures of two toxins from snake venom throw light on the anticoagulant and neurotoxic sites of phospholipase A2.,Carredano E, Westerlund B, Persson B, Saarinen M, Ramaswamy S, Eaker D, Eklund H Toxicon. 1998 Jan;36(1):75-92. PMID:9604284<ref>PMID:9604284</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 1vip" style="background-color:#fffaf0;"></div>
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==See Also==
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The line below this paragraph, {{ABSTRACT_PUBMED_9604284}}, adds the Publication Abstract to the page
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*[[Phospholipase A2 3D structures|Phospholipase A2 3D structures]]
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(as it appears on PubMed at http://www.pubmed.gov), where 9604284 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_9604284}}
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__TOC__
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</StructureSection>
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==About this Structure==
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[[Category: Daboia russelii russelii]]
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1VIP is a 1 chain structure of sequence from [http://en.wikipedia.org/wiki/Daboia_russellii_russellii Daboia russellii russellii]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1VIP OCA].
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[[Category: Large Structures]]
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[[Category: Carredano E]]
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==Reference==
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[[Category: Eaker D]]
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<ref group="xtra">PMID:9604284</ref><references group="xtra"/>
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[[Category: Eklund H]]
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[[Category: Daboia russellii russellii]]
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[[Category: Persson B]]
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[[Category: Carredano, E.]]
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[[Category: Ramaswamy S]]
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[[Category: Eaker, D.]]
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[[Category: Saarinen M]]
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[[Category: Eklund, H.]]
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[[Category: Westerlund B]]
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[[Category: Persson, B.]]
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[[Category: Ramaswamy, S.]]
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[[Category: Saarinen, M.]]
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[[Category: Westerlund, B.]]
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[[Category: Anticoagulant]]
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[[Category: Hydrolase]]
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[[Category: Phospholipase a2]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Tue Feb 17 22:04:33 2009''
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Current revision

ANTICOAGULANT CLASS II PHOSPHOLIPASE A2 FROM THE VENOM OF VIPERA RUSSELLI RUSSELLI

PDB ID 1vip

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