Corynebacterium diphtheriae antigens

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Diphtheria Toxin
Purified native diphtheria toxin from Corynebacterium diphtheriae,
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Diphtheria Toxin, CRM197 Mutant
CRM197 is a genetically detoxified diphtheria toxin. It is expressed as a soluble, correctly folded ~58kDa recombinant protein in the cytoplasm of E. coli and then produced to >99% purity.
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Diphtheria Toxoid
Purified diphtheria toxin from Corynebacterium diphtheria strain NCTC 10648; converted to inactive toxoid form and presented lyophilised.
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Diphtheria Toxoid (Frozen)
Diphtheria toxoid is a formaldehyde-inactivated toxin purified from Corynebacterium diphtheriae strain NCTC 10648. Toxoid is presented frozen in Tris-EDTA disodium salt buffer.
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Diphtheria Toxin