3boo: Difference between revisions
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<StructureSection load='3boo' size='340' side='right'caption='[[3boo]], [[Resolution|resolution]] 1.40Å' scene=''> | <StructureSection load='3boo' size='340' side='right'caption='[[3boo]], [[Resolution|resolution]] 1.40Å' scene=''> | ||
== Structural highlights == | == Structural highlights == | ||
<table><tr><td colspan='2'>[[3boo]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/ | <table><tr><td colspan='2'>[[3boo]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Clostridium_botulinum Clostridium botulinum]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3BOO OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3BOO 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]] 1.4Å</td></tr> | ||
<tr id=' | <tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene>, <scene name='pdbligand=CSO:S-HYDROXYCYSTEINE'>CSO</scene>, <scene name='pdbligand=ZN:ZINC+ION'>ZN</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=3boo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3boo OCA], [https://pdbe.org/3boo PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3boo RCSB], [https://www.ebi.ac.uk/pdbsum/3boo PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3boo 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=3boo FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3boo OCA], [https://pdbe.org/3boo PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3boo RCSB], [https://www.ebi.ac.uk/pdbsum/3boo PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3boo ProSAT]</span></td></tr> | ||
</table> | </table> | ||
== Function == | |||
[https://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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__TOC__ | __TOC__ | ||
</StructureSection> | </StructureSection> | ||
[[Category: | [[Category: Clostridium botulinum]] | ||
[[Category: Large Structures]] | [[Category: Large Structures]] | ||
[[Category: Allen | [[Category: Allen KN]] | ||
[[Category: Silvaggi | [[Category: Silvaggi NR]] | ||