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E2886

Sigma-Aldrich

ExtrAvidin®−Peroxidase

buffered aqueous solution

Synonym(s):

ExtrAvidin HRP

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About This Item

MDL number:
MFCD00163600
UNSPSC Code:
12352203
NACRES:
NA.46

conjugate

peroxidase conjugate

Quality Level

200

form

buffered aqueous solution

technique(s)

direct ELISA: 1:2,000
dot blot: 1:4,000
immunohistochemistry (formalin-fixed, paraffin-embedded sections): 1:100

shipped in

wet ice

storage temp.

2-8°C

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Specificity

The product is found to be reactive with Anti-Avidin, Catalog Number A5170, and non-reactive with Anti-Streptavidin, Catalog Number S6390, by immunoelectrophoresis.

Application

ExtrAvidin®-Peroxidase is suitable for the following applications:
  • Dot blot at a minimum dilution of 1:4,000
  • Immunohistochemistry (using formalin-fixed, paraffin-embedded sections at a dilution of 1:100)
  • Direct ELISA at a minimum dilution of 1:2,000
It has also been used for:
  • Immunoprecipitation and Immunobloting
  • Ra2I solid-phase binding assays
  • Southwestern blotting
  • Western blotting
  • Immunocytochemistry

Biochem/physiol Actions

Avidin is a tetrameric or dimeric biotin-binding protein produced in the oviducts of birds, reptiles and amphibians and deposited in the whites of their eggs. It consists of four high affinity binding sites for biotin. ExtrAvidin® is prepared from egg white avidin. It is a modified form of affinity purified avidin with high specific activity of avidin and low background staining of streptavidin. It is a biotin binding protein produced by the bacteria Streptomyces avidinii. ExtrAvidin-Peroxidase may be used in conjunction with biotin in different techniques.

Physical form

Solution in 0.01 M phosphate buffered saline, pH 7.4, containing 0.05% MIT

Preparation Note

Affinity purified protein

Storage and Stability

Store at 2-8 °C. Do Not Freeze. If slight turbidity occurs upon prolonged storage, clarify the solution by centrifugation before use.

Legal Information

ExtrAvidin is a registered trademark of Merck KGaA, Darmstadt, Germany

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.

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H317

Hazard Classifications

Skin Sens. 1

Storage Class

12 - Non Combustible Liquids

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Stefan Lüth et al.
The Journal of clinical investigation, 118(10), 3403-3410 (2008-09-20)
Tregs are important mediators of immune tolerance to self antigens, and it has been suggested that Treg inactivation may cause autoimmune disease. Therefore, immunotherapy approaches that aim to restore or expand autoantigen-specific Treg activity might be beneficial for the treatment
H Kaur et al.
Scandinavian journal of immunology, 62(4), 361-370 (2005-10-29)
The present study was designed to examine the binding and signalling effects of single base and CpG dinucleotide phosphodiester (Po) oligodeoxynucleotides (ODN) on the human natural killer (NK)-like cell line (YT-INDY). Single base Po ODN composed of 20-mers of guanosine
D Tuckwell et al.
Journal of cell science, 108 ( Pt 4), 1629-1637 (1995-04-01)
Integrins alpha 1 beta 1 and alpha 2 beta 1 are major cellular receptors for collagens. The alpha 1 and alpha 2 subunits contain a approximately 200 amino acid inserted domain (I-domain) in their N-terminal region and, because of the
Mohamed S Benleulmi et al.
Retrovirology, 14(1), 54-54 (2017-11-29)
Stable insertion of the retroviral DNA genome into host chromatin requires the functional association between the intasome (integrase·viral DNA complex) and the nucleosome. The data from the literature suggest that direct protein-protein contacts between integrase and histones may be involved
Dimer-tetramer transition between solution and crystalline states of streptavidin and avidin mutants.
Pazy Y, et al.
Journal of Bacteriology, 185(14), 4050-4056 (2003)
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Protocols

Immunohistochemistry Procedure

Use this protocol to for the entire immunohistochemistry (IHC) procedure through staining and visualization of specific antigens in paraffin-embedded tissue sections.

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