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Clostridium difficile Toxin A

The Native Antigen Company's Clostridium difficile Toxin A is a highly purified preparation. Developed either for use with clinical diagnostic assays, it serves as a  positive control and for determination of assay range or for use by researchers in techniques such as cytotoxicity testing.

The product is presented in a choice of pack sizes and is lyophilised for ease of use.

We also offer Clostridium difficile Toxoid A, which is derived from this product.

Antigen Type
Purity
Strain
Presentation
Product Code
Vial Sizes
Native


Highly purified protein

VPI 10463


Lyophilised


CDA-TNL-50
CDA-TNL-100
CDA-TNL-500
50μg
100μg
500μg

Typical Certificate of Analysis

Name: Clostridium difficile Toxin A
Product code: CDA-TNL-100
Batch #: 2471
Description: Native toxin A purified from C. difficile
Amount: 100μg
Purity: >95% pure by SDS-PAGE
Presentation: Lyophilised
Buffer: Contents when reconstituted in 250μl sterile distilled water will contain: Toxin A at a concentration of 0.4mg/ml in 0.05M Hepes, 0.15M NaCl and 5% sucrose

STORAGE: Store at 2-8°C.

Quality Control Data

Antigenicity comparison of lyophilised and unlyophilised toxin and toxoid A

toxin a

SDS-PAGE of purity showing Toxin A (308 kDa), molecular weight markers, and Toxin B (270kDa).

toxin a