conjugate
FITC conjugate
form
buffered aqueous solution
extent of labeling
3-6 mol fluorochrome per mol protein
technique(s)
immunohistochemistry (formalin-fixed, paraffin-embedded sections): 20 μg/mL using human tissues
indirect immunofluorescence: 1:200
shipped in
dry ice
storage temp.
−20°C
General description
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 and combines high specific activity of avidin with the low background staining of streptavidin. It is a biotin binding protein produced by the bacteria Streptomyces avidinii. ExtrAvidin has been conjugated to fluorescein isothiocyanate (FITC) and is used for various techniques.
Application
ExtrAvidin®-FITC is suitable for the following applications:
- immunohistochemistry (formalin-fixed, paraffin-embedded sections) at a concentration of 20μg/mL using human tissues.
- Immunofluorescence†
- competitive binding assay
Physical form
Solution in 0.01 M phosphate buffered saline, containing 10% (v/v) 0.5 M carbonate buffer, pH 9.5, and 15 mM sodium azide
Preparation Note
Affinity purified protein
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.
Storage Class Code
12 - Non Combustible Liquids
WGK
WGK 2
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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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