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[[Image:3qiy.png|left|200px]]
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{{STRUCTURE_3qiy|  PDB=3qiy  |  SCENE=  }}  
{{STRUCTURE_3qiy|  PDB=3qiy  |  SCENE=  }}  
===Crystal Structure of BoNT/A LC complexed with Hydroxamate-based Inhibitor PT-1===
===Crystal Structure of BoNT/A LC complexed with Hydroxamate-based Inhibitor PT-1===
{{ABSTRACT_PUBMED_21434688}}


 
==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.
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{{ABSTRACT_PUBMED_21434688}}


==About this Structure==
==About this Structure==
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==Reference==
==Reference==
<ref group="xtra">PMID:021434688</ref><references group="xtra"/>
<ref group="xtra">PMID:021434688</ref><references group="xtra"/><references/>
[[Category: Bontoxilysin]]
[[Category: Bontoxilysin]]
[[Category: Clostridium botulinum]]
[[Category: Clostridium botulinum]]
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[[Category: Stevens, R C.]]
[[Category: Stevens, R C.]]
[[Category: Thompson, A A.]]
[[Category: Thompson, A A.]]
[[Category: Bont]]
[[Category: Botulinum]]
[[Category: Hydrolase-hydrolase inhibitor complex]]
[[Category: Hydroxamate]]
[[Category: Inhibitor]]
[[Category: Metalloprotease]]
[[Category: Neurotoxin]]
[[Category: Protease]]
[[Category: Toxin]]

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