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Merck

D0564

Diphtheria Toxin

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

Sinónimos:

DTx

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About This Item

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

Nombre del producto

Toxina de la difteria from Corynebacterium diphtheriae, lyophilized powder, Product is in unnicked form

form

lyophilized powder

storage temp.

2-8°C

Quality Level

200

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Application

La toxina diftérica de Corynebacterium diphtheriae se ha utilizado:


  • para la merma de la microglía con objeto de estudiar el trastorno por estrés postraumático en ratones
  • inyectada intraperitonealmente en ratones transgénicos para seleccionar los híbridos después de la fusión de células madre y progenitoras hematopoyéticas trasplantadas (HSPC) durante la ablación
  • para estudiar su efecto sobre los progenitores comprometidos con el linaje de eosinófilos en una cepa de ratones con deficiencia de eosinófilos

Biochem/physiol Actions

La toxina diftérica es una toxina bacteriana producida a partir de Corynebacterium diphtheriae. Contiene tres dominios que tienen acciones intracelulares. Los dominios intervienen en la intoxicación de la célula, la unión a la superficie celular y la internalización en endosomas, translocándose al citosol a través de la membrana del endosoma e inhibiendo la síntesis de proteínas celulares. La toxina diftérica es útil en la construcción de herramientas y tratamientos biotecnológicos. Inhibe la síntesis de proteínas al catalizar la adenosina difosfato (ADP)-ribosilación de la proteína diana en eucariotas.

General description

La toxina de la difteria puede utilizarse como el elemento toxina en la construcción de inmunotoxinas para citotoxicidad celular específica. Se ha utilizado el dominio de translocación de las toxinas bacterianas con un mecanismo de escape natural del endosoma en el desarrollo de vectores no víricos eficaces para aplicación en genoterapia.

Physical form

Polvo liofilizado que contiene Tris y EDTA.

Preparation Note

Cada vial, una vez reconstituido a 0,5 ml con agua destilada estéril, contiene ~1 mg de toxina de la difteria en Tris 0,01 M y Na2EDTA 0,001 M, pH 7,5.

pictograms

Skull and crossbones
GHS06

signalword

Danger

Hazard Classifications

Acute Tox. 1 Inhalation - Acute Tox. 1 Oral

Clase de almacenamiento

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

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Certificados de análisis (COA)

Lot/Batch Number
MKCX7565
MKCW9802
MKCW9803
MKCW6047
MKCV8141

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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.

Biology and molecular epidemiology of diphtheria toxin and the tox gene
The Journal of Infectious Diseases, 181 (2000)
Diphtheria toxin
The Comprehensive Sourcebook of Bacterial Protein Toxins (2015)
Benjamin J Vakoc et al.
Nature medicine, 15(10), 1219-1223 (2009-09-15)
Intravital multiphoton microscopy has provided powerful mechanistic insights into health and disease and has become a common instrument in the modern biological laboratory. The requisite high numerical aperture and exogenous contrast agents that enable multiphoton microscopy, however, limit the ability
Allah Nawaz et al.
Nature communications, 8(1), 286-286 (2017-08-19)
Adipose tissue resident macrophages have important roles in the maintenance of tissue homeostasis and regulate insulin sensitivity for example by secreting pro-inflammatory or anti-inflammatory cytokines. Here, we show that M2-like macrophages in adipose tissue regulate systemic glucose homeostasis by inhibiting
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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