Umbrella toxins, or umbrella toxin proteins (Umbs), are a recently discovered multiprotein bacterial toxin encoded by Streptomyces species and other Actinobacteria. Unlike other well-studied bacterial toxins named after their source organisms, such as botulinum toxin, anthrax toxin, or the Bacillus thuringiensis (Bt) toxin, the umbrella toxin is named after its unique umbrella-like macromolecular morphology of a stalk with five spokes.
Umbrella toxins, or umbrella toxin proteins (Umbs), are a recently discovered multiprotein bacterial toxin encoded by Streptomyces species and other Actinobacteria. Unlike other well-studied bacterial toxins named after their source organisms, such as botulinum toxin, anthrax toxin, or the Bacillus thuringiensis (Bt) toxin, the umbrella toxin is named after its unique umbrella-like macromolecular morphology of a stalk with five spokes.
Source: Wikipedia "Umbrella toxin" · CC BY-SA 4.0
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