2vrp: Difference between revisions
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[[Image: | ==STRUCTURE OF RHODOCYTIN== | ||
<StructureSection load='2vrp' size='340' side='right' caption='[[2vrp]], [[Resolution|resolution]] 2.41Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[2vrp]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Calloselasma_rhodostoma Calloselasma rhodostoma]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2VRP OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2VRP FirstGlance]. <br> | |||
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene>, <scene name='pdbligand=NA:SODIUM+ION'>NA</scene><br> | |||
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2vrp FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2vrp OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2vrp RCSB], [http://www.ebi.ac.uk/pdbsum/2vrp PDBsum]</span></td></tr> | |||
<table> | |||
== Evolutionary Conservation == | |||
[[Image:Consurf_key_small.gif|200px|right]] | |||
Check<jmol> | |||
<jmolCheckbox> | |||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/vr/2vrp_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | |||
<text>to colour the structure by Evolutionary Conservation</text> | |||
</jmolCheckbox> | |||
</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/chain_selection.php?pdb_ID=2ata ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Binding of the snake venom protein rhodocytin to CLEC-2, a receptor on the surface of human platelets, initiates a signaling cascade leading to platelet activation and aggregation. We have previously solved the structure of CLEC-2. The 2.4 A resolution crystal structure of rhodocytin presented here demonstrates that it is the first snake venom or other C-type lectin-like protein to assemble as a non-disulfide linked (alphabeta)(2) tetramer. Rhodocytin is highly adapted for interaction with CLEC-2 and displays a concave binding surface, which is highly complementary to the experimentally determined binding interface on CLEC-2. Using computational dynamic methods, surface electrostatic charge and hydrophobicity analyses, and protein-protein docking predictions, we propose that the (alphabeta)(2) rhodocytin tetramer induces clustering of CLEC-2 receptors on the platelet surface, which will trigger major signaling events resulting in platelet activation and aggregation. | |||
Crystal structure of rhodocytin, a ligand for the platelet-activating receptor CLEC-2.,Watson AA, Eble JA, O'Callaghan CA Protein Sci. 2008 Sep;17(9):1611-6. Epub 2008 Jun 26. PMID:18583525<ref>PMID:18583525</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
== | |||
< | |||
[[Category: Calloselasma rhodostoma]] | [[Category: Calloselasma rhodostoma]] | ||
[[Category: Callaghan, C A.O.]] | [[Category: Callaghan, C A.O.]] | ||
