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3k3q

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==Crystal Structure of a Llama Antibody complexed with the C. Botulinum Neurotoxin Serotype A Catalytic Domain==
==Crystal Structure of a Llama Antibody complexed with the C. Botulinum Neurotoxin Serotype A Catalytic Domain==
<StructureSection load='3k3q' size='340' side='right' caption='[[3k3q]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
<StructureSection load='3k3q' size='340' side='right' caption='[[3k3q]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[3k3q]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Clostridium_botulinum_a_str._hall Clostridium botulinum a str. hall] and [http://en.wikipedia.org/wiki/Lama_glama Lama glama]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3K3Q OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3K3Q FirstGlance]. <br>
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<table><tr><td colspan='2'>[[3k3q]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Clobh Clobh] and [http://en.wikipedia.org/wiki/Camelus_glama Camelus glama]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3K3Q OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3K3Q 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>
</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>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">llama VHH immunoglobulin ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9844 Lama glama]), botA, CBO0806, CLC_0862, neurotoxin catalytic domain ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=441771 Clostridium botulinum A str. Hall])</td></tr>
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<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">llama VHH immunoglobulin ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9844 Camelus glama]), botA, CBO0806, CLC_0862, neurotoxin catalytic domain ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=441771 CLOBH])</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='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>
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<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=3k3q FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3k3q OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3k3q RCSB], [http://www.ebi.ac.uk/pdbsum/3k3q PDBsum]</span></td></tr>
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<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=3k3q FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3k3q OCA], [http://pdbe.org/3k3q PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3k3q RCSB], [http://www.ebi.ac.uk/pdbsum/3k3q PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3k3q ProSAT]</span></td></tr>
</table>
</table>
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== Function ==
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[[http://www.uniprot.org/uniprot/BXA1_CLOBH BXA1_CLOBH]] Inhibits acetylcholine release. The botulinum toxin binds with high affinity to peripheral neuronal presynaptic membrane to the secretory vesicle protein SV2. It binds directly to the largest luminal loop of SV2A, SV2B and SV2C. It is then internalized by receptor-mediated endocytosis. The C-terminus of the heavy chain (H) is responsible for the adherence of the toxin to the cell surface while the N-terminus mediates transport of the light chain from the endocytic vesicle to the cytosol. After translocation, the light chain (L) hydrolyzes the 197-Gln-|-Arg-198 bond in SNAP-25, thereby blocking neurotransmitter release. Inhibition of acetylcholine release results in flaccid paralysis, with frequent heart or respiratory failure.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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<text>to colour the structure by Evolutionary Conservation</text>
<text>to colour the structure by Evolutionary Conservation</text>
</jmolCheckbox>
</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/chain_selection.php?pdb_ID=2ata ConSurf].
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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=3k3q ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
</div>
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<div class="pdbe-citations 3k3q" style="background-color:#fffaf0;"></div>
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==See Also==
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*[[Botulinum neurotoxin|Botulinum neurotoxin]]
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*[[Llama Antibody Inhibits Botulinum Neruotoxin|Llama Antibody Inhibits Botulinum Neruotoxin]]
== References ==
== References ==
<references/>
<references/>
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</StructureSection>
</StructureSection>
[[Category: Bontoxilysin]]
[[Category: Bontoxilysin]]
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[[Category: Clostridium botulinum a str. hall]]
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[[Category: Camelus glama]]
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[[Category: Lama glama]]
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[[Category: Clobh]]
[[Category: Dong, J]]
[[Category: Dong, J]]
[[Category: Marks, J D]]
[[Category: Marks, J D]]
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[[Category: Cell junction]]
[[Category: Cell junction]]
[[Category: Cell membrane]]
[[Category: Cell membrane]]
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[[Category: Cytoplasm]]
[[Category: Disulfide bond]]
[[Category: Disulfide bond]]
[[Category: Hydrolase]]
[[Category: Hydrolase]]
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[[Category: Metalloprotease]]
[[Category: Metalloprotease]]
[[Category: Neurotoxin]]
[[Category: Neurotoxin]]
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[[Category: Pharmaceutical]]
[[Category: Protease]]
[[Category: Protease]]
[[Category: Secreted]]
[[Category: Secreted]]
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[[Category: Transmembrane]]
[[Category: Transmembrane]]
[[Category: Vhh]]
[[Category: Vhh]]
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[[Category: Zinc]]

Current revision

Crystal Structure of a Llama Antibody complexed with the C. Botulinum Neurotoxin Serotype A Catalytic Domain

3k3q, resolution 2.60Å

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