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Safety Information

D0564

Sigma-Aldrich

Diphtheria Toxin

from Corynebacterium diphtheriae, ≥98% (SDS-PAGE), lyophilized powder, protein synthesis inhibitor

Synonym(s):

DTx

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About This Item

MDL number:
MFCD00163490
UNSPSC Code:
12352200
NACRES:
NA.77

Product Name

Diphtheria Toxin from Corynebacterium diphtheriae, lyophilized powder, Product is in unnicked form

Quality Level

200

form

lyophilized powder

storage temp.

2-8°C

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General description

Diphtheria toxin may be used as a toxin element in the construction of immunotoxin for cell-specific cytotoxicity. The translocation domain of bacterial toxins with a natural endosome escape mechanism has been used in the development of efficient nonviral vectors for applications in gene therapy.

Application

Diphtheria Toxin from Corynebacterium diphtheriae has been used:


  • for microglia depletion to study post-traumatic stress disorder in mice
  • intraperitoneally injected in transgenic mice to select the hybrids after fusion of transplanted hematopoietic stem and progenitor cells (HSPCs) during ablation
  • to study its effect on eosinophil lineage-committed progenitors in an eosinophil-deficient strain of mice (iPHIL)

Biochem/physiol Actions

Diphtheria toxin is a bacterial toxin produced from Corynebacterium diphtheriae. It contains three domains that have intracellular actions. The domains are involved in the intoxication of the cell, cell-surface binding and internalization into endosomes, translocating into the cytosol across the endosome membrane and inhibiting cellular protein synthesis. Diphtheria toxin is useful in constructing biotechnological tools and therapeutics. It inhibits protein synthesis by catalyzing adenosine diphosphate (ADP)-ribosylation of the target protein in eukaryotes.

Physical form

Lyophilized powder containing Tris and EDTA.

Reconstitution

Each vial, when reconstituted to 0.5 mL with sterile distilled water, contains ~1 mg of diphtheria toxin in 0.01 M Tris and 0.001 M Na2EDTA, pH 7.5.

Pictograms

Skull and crossbones
GHS06

Signal Word

Danger

Hazard Statements

H300 + H330

Hazard Classifications

Acute Tox. 1 Inhalation - Acute Tox. 1 Oral

Storage Class Code

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

高风险级别生物产品--毒素类产品

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW6047
MKCV8141
MKCT4996
MKCT4991
MKCV1948

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. What is the solubility of Product D0564, Diphtheria Toxin from Corynebacterium diphtheriae?

    This product is soluble in water.  Reconstitute with the volume of water described under Description on our website page for D0564.  

  4. What is the solution stability of Product D0564, Diphtheria Toxin from Corynebacterium diphtheriae?

    Once the product is reconstituted in water, the solution may be stored in aliquots at -20°C. Avoid freeze-thawing. Long-term storage in the refrigerator at 2-8°C is not recommended.

  5. How stable is Product D0564, Diphtheria Toxin from Corynebacterium diphtheriae, at low concentration?

    For assays employing low concentration of the toxin, the use of a carrier protein like serum albumin is recommended.   

  6. What is the molecular weight of Product D0564, Diphtheria Toxin from Corynebacterium diphtheriae?

    In the presence of a reducing agent, on SDS gels, this preparation migrates as a major band of approx. mw 63,000 Daltons (corresponding to thte intact toxin) and two faster more lightly stained bands of approx. MW 39,000 and 24,000 Daltons (corresponding to the B and A fragments, respectively). Based on this method, the extent of the degree of nicking in this preparation is estimated to be less than 5%.

  7. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  8. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  9. How is Product D0564-1MG, Diphtheria Toxin, packaged?

    Product D0564-1MG, Diphtheria Toxin, is packaged in a small serum vial with a rubber or silicone septum and aluminum crimp top. The product can be reconstituted in the vial by piercing the septum with a syringe fitted with a stainless steel needle.

  10. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

Diphtheria toxin
The Comprehensive Sourcebook of Bacterial Protein Toxins (2015)
S M Yellon et al.
Biology of reproduction, 100(5), 1386-1394 (2019-01-11)
To test the hypothesis that macrophages are essential for remodeling the cervix in preparation for birth, pregnant homozygous CD11b-dtr mice were injected with diphtheria toxin (DT) on days 14 and 16 postbreeding. On day 15 postbreeding, macrophages (F4/80+) were depleted
Biology and molecular epidemiology of diphtheria toxin and the tox gene
The Journal of Infectious Diseases, 181 (2000)
Mary F Fontana et al.
PLoS pathogens, 12(12), e1006046-e1006046 (2016-12-07)
Dynamic regulation of leukocyte population size and activation state is crucial for an effective immune response. In malaria, Plasmodium parasites elicit robust host expansion of macrophages and monocytes, but the underlying mechanisms remain unclear. Here we show that myeloid expansion
Vicky A Tobin et al.
Nature, 464(7287), 413-417 (2010-02-26)
Many peptides, when released as chemical messengers within the brain, have powerful influences on complex behaviours. Most strikingly, vasopressin and oxytocin, once thought of as circulating hormones whose actions were confined to peripheral organs, are now known to be released
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