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P8651

Sigma-Aldrich

Protein A–Peroxidase from Staphylococcus aureus/horseradish

lyophilized powder

Synonym(s):

Peroxidase–Protein A

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About This Item

MDL number:
MFCD00132102
UNSPSC Code:
12352203
NACRES:
NA.46

conjugate

peroxidase conjugate

Quality Level

100
200

form

lyophilized powder

technique(s)

direct ELISA: 1:80,000 using human IgG

storage temp.

−20°C

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General description

Protein A is a cell wall constituent of Staphylococcus aureus, with a molecular weight of 56kDa. It possesses five binding domains which interact with heavy chains of immunoglobulins at the Fc or Fab fragment. In response to protein A, the complement system, interferon production, hypersensitivity reactions and cell-mediated cytotoxicity get activated. Horseradish peroxidase is a heme-containing enzyme. In the presence of hydrogen peroxide, the enzyme catalyzes the oxidation of luminol.

Specificity

Binds IgG only from most mammals, except rat, goat, sheep.

Application

Protein A–Peroxidase from Staphylococcus aureus/horseradish has been used in enzyme-linked immunosorbent assay (ELISA).

Packaging

Package size based on protein content.

Physical form

Lyophilized powder containing sodium citrate buffer salt. Protein determined by A205.

Preparation Note

Protein A, extracellular, coupled to Peroxidase, Type VI, by a modification of the procedure of O′Sullivan, M.J., et al., FEBS Lett., 95, 311 (1978), which favors low molecular weight conjugates.

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

常规特殊物品

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
0000329693
0000329693
SLCP2555
SLCH3263
SLCG0737

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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. How do I prepare a stock solution of Product P8651, Protein A Peroxidase?

    A stock solution of this product can be prepared in PBS (phosphate buffered saline) or other neutral buffer at 1 mg/mL.

  4. What is the solution stability of Product P8651, Protein A Peroxidase?

    The solution should be stable for about one week when stored at 2-8°C. For long-term storage, the stock solution should be frozen in aliquots at -20 °C.

  5. How do I use Product P8651, Protein A Peroxidase, as a my secondary in Western blot analysis?

    For Western blotting, with chemiluminescent substrate, dilute 1:1000 to 1:10,000.

  6. I bought Product P8651, Protein A Peroxidase, to hide heavy and light chain in a Western blot. How does it do that?

    P8651 will only recognize the native antibody incubated on a blot, not what's run in the gel. This should circumvent heavy and light chain detection.

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

    Ask a Scientist here.

Katharina Mayer et al.
International journal of molecular sciences, 22(16) (2021-08-28)
Within-host adaptation is a typical feature of chronic, persistent Staphylococcus aureus infections. Research projects addressing adaptive changes due to bacterial in-host evolution increase our understanding of the pathogen's strategies to survive and persist for a long time in various hosts
Monica L Mazuz et al.
International journal for parasitology. Parasites and wildlife, 7(3), 317-321 (2018-09-04)
Neosporosis and besnoitiosis, caused by cyst-forming protozoa Neospora caninum and Besnoitia besnoiti, respectively, are parasitic infestations of livestock in Israel. These parasites cause significant economic losses in cattle due to reproductive and productive disorders. Both parasites have been detected in
Staphylococcal protein A consists of five IgG-binding domains
Tomas MOKS
European Journal of Biochemistry (1986)
J Jelfs et al.
Epidemiology and infection, 120(3), 263-270 (1998-08-06)
Fourteen cases of meningococcal disease (MD) occurred in August September 1996 in western Sydney, Australia. Seven of the 10 young adults affected had a direct or indirect link with a local nightclub. Ten of 11 systemic meningococcal isolates had the
P Eliades et al.
Journal of immunological methods, 218(1-2), 123-132 (1998-11-18)
We have developed a dot immunobinding assay (CM) for the serodiagnosis of the human hydatidosis. The assay employs Samaron blue colloidal dye particles conjugated to hydatid antigen (HA) or protein A, both of which serve as visualizing agents. The test
View All Related Papers

Protocols

Spectrophotometric Determination of Reinheitszahl (RZ) for Peroxidase (EC 1.11.1.7)

Reinheitszahl (RZ) is the ratio of absorbance due to hemin (A403, Soret region) to absorbance due to protein (A275).

Enzymatic Assay of Peroxidase (EC 1.11.1.7) 2,2'-Azino-bis(3-Ethylbenzthiazoline-6-Sulfonic Acid) as a Substrate

To standardize a procedure for the assay of Peroxidase using 2,2'-Azino-bis(3-Ethylbenzthiazoline-6-Sulfonic Acid) as a substrate.

Enzymatic Assay of Peroxidase (EC 1.11.1.7)

This procedure is for the determination of Peroxidase enzymatic activity using Pyrogallol as the substrate.

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