Target intelligence / Profile preview

Botulinum Neurotoxin Serotype B (BoNT/B)

Target
BoNT/B
Molecular classification
Metalloprotease, Neurotoxin, Enzyme
01

Overview

Botulinum neurotoxin serotype B (BoNT/B) is a highly potent neurotoxic protein produced by Clostridium botulinum. It functions as a zinc-dependent metalloprotease, cleaving synaptobrevin (VAMP), a SNARE protein essential for neurotransmitter release, thus inhibiting acetylcholine exocytosis and causing flaccid paralysis. Controlled doses are used therapeutically for various neuromuscular disorders.

Other names
Botulinum toxin BClostridium botulinum neurotoxin serotype B
02

Mechanism of action

Metalloprotease that cleaves synaptobrevin (VAMP), a SNARE protein, preventing acetylcholine exocytosis at neuromuscular junctions, leading to flaccid paralysis.

03

Biological functions

Neurotransmission inhibitionAcetylcholine release inhibitionSNARE protein cleavageMetalloprotease activity
04

Disease associations

BotulismNeuromuscular disorders
05

Safety considerations

High toxicityPotential for paralysisRisk of respiratory failure
06

Interacting drugs

Botulinum toxin type B (therapeutic)

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