View source for 3fii

==Crystal structure of Clostridium botulinum neurotoxin serotype F catalytic domain with an inhibitor (inh2)==
<StructureSection load='3fii' size='340' side='right' caption='[[3fii]], [[Resolution|resolution]] 2.17&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[3fii]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_botulinus"_van_ermengem_1896 "bacillus botulinus" van ermengem 1896]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3FII OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3FII FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ZN:ZINC+ION'>ZN</scene></td></tr>
<tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=00C:3-SULFO-D-ALANINE'>00C</scene>, <scene name='pdbligand=NH2:AMINO+GROUP'>NH2</scene></td></tr>
<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[2a8a|2a8a]], [[2a97|2a97]], [[3fie|3fie]]</td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">bonT/F ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1491 "Bacillus botulinus" van Ermengem 1896])</td></tr>
<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Bontoxilysin Bontoxilysin], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.4.24.69 3.4.24.69] </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=3fii FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3fii OCA], [http://pdbe.org/3fii PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3fii RCSB], [http://www.ebi.ac.uk/pdbsum/3fii PDBsum]</span></td></tr>
</table>
== Function ==
[[http://www.uniprot.org/uniprot/VAMP2_HUMAN VAMP2_HUMAN]] Involved in the targeting and/or fusion of transport vesicles to their target membrane. 
== 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/fi/3fii_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/main_output.php?pdb_ID=3fii ConSurf].
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== Publication Abstract from PubMed ==
Clostridium botulinum neurotoxins (BoNTs) cleave neuronal proteins responsible for neurotransmitter release, causing the neuroparalytic disease botulism. BoNT serotypes B, D, F and G cleave and inactivate vesicle-associated membrane protein (VAMP), each at a unique peptide bond. The specificity of BoNTs depends on the mode of substrate recognition. We have investigated the mechanism of substrate recognition of BoNT F by determining the crystal structures of its complex with two substrate-based inhibitors, VAMP 22-58/Gln58D-cysteine and 27-58/Gln58D-cysteine. The inhibitors bind to BoNT F in the canonical direction (as seen for BoNTs A and E substrates) but are positioned specifically via three major exosites away from the active site. The cysteine sulfur of the inhibitors interacts with the zinc and exists as sulfinic acid in the inhibitor VAMP 27-58/Gln58D-cysteine. Arg133 and Arg171, which form part of two separate exosites, are crucial for substrate binding and catalysis.

Mode of VAMP substrate recognition and inhibition of Clostridium botulinum neurotoxin F.,Agarwal R, Schmidt JJ, Stafford RG, Swaminathan S Nat Struct Mol Biol. 2009 Jul;16(7):789-94. Epub 2009 Jun 21. PMID:19543288<ref>PMID:19543288</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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<div class="pdbe-citations 3fii" style="background-color:#fffaf0;"></div>

==See Also==
*[[Botulinum neurotoxin|Botulinum neurotoxin]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Bacillus botulinus van ermengem 1896]]
[[Category: Bontoxilysin]]
[[Category: Agarwal, R]]
[[Category: Swaminathan, S]]
[[Category: Bont f]]
[[Category: Cell junction]]
[[Category: Clostridium botulinum]]
[[Category: Complex structure]]
[[Category: Hydrolase]]
[[Category: Inhibitor]]
[[Category: Toxin-protein transport complex]]
[[Category: Vamp]]