Product nameStreptavidin Alexa Fluor® 488 Monovalent Antibody Labeling Kit
Streptavidin Alexa Fluor® 488 Monovalent Antibody Labeling Kit ab272187 is used to label biotinylated antibodies with Alexa Fluor® 488.
The Antibody - Streptavidin Alexa Fluor® 488 complex produced with this kit is stable and can be used in the same way as antibodies conjugated directly with fluorochromes.
Several antibodies can be labeled with this kit, and its associated kits, and used together in the same experiment.
Use this kit to:
- label biotinylated antibodies with fluorescent dyes, and use them in immunostaining just like a directly dye conjugated antibody
- label two or more biotinylated antibodies with different fluorescent dyes* and then use them together in the same experiment
*multiple kits required, see list below
- label as little as 0.1 µg of biotinylated antibody in less than 5 mins without washes
The 50 µg size of this kit is typically sufficient to label 50 µg of antibody, the 25 µg size is sufficient to label 25 µg of antibody.
When the antibody - streptavidin complex is produced with this kit, due to the monovalent nature of the streptavidin and the blocking solution, there is no risk of forming aggregates of multiple antibodies.
The antibody - streptavidin complex is also very stable, if 2 or more biotinylated antibodies are labeled with different dyes, and then mixed, no dye will transfer between the antibodies.
List of available monovalent streptavidin antibody labeling kits
Note: the streptavidin in this kit contains very small amounts of non-monovalent streptavidin, when used with the blocking buffer included in the kit, this does not affect the conjugated antibodies.
Alexa Fluor® is a registered trademark of Molecular Probes, Inc, a Thermo Fisher Scientific Company. The purchase of this product conveys to the buyer the non-transferable right to use the purchased product and components of the product only in research conducted by the buyer (whether the buyer is an academic or for-profit entity). The sale of this product is expressly conditioned on the buyer not using the product or its components, or any materials made using the product or its components, in any activity to generate revenue, which may include, but is not limited to use of the product or its components: in manufacturing; (ii) to provide a service, information, or data in return for payment (iii) for therapeutic, diagnostic or prophylactic purposes; or (iv) for resale, regardless of whether they are sold for use in research. For information on purchasing a license to this product for purposes other than research, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or firstname.lastname@example.org.
Tested applicationsSuitable for: Flow Cyt, IHCmore details
Storage instructionsStore at +4°C. Please refer to protocols.
Components 50 µg 25 µg Biotin block buffer 1 x 500µl 1 x 250µl Streptavidin Alexa Fluor® 488 (Monovalent) labeling reagent 1 x 500µl 1 x 250µl
Our Abpromise guarantee covers the use of ab272187 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
|Flow Cyt||Use at an assay dependent concentration.|
|IHC||Use at an assay dependent concentration.|
Multiplex immunostaining of a frozen tissue section of mouse spleen using four biotinylated antibodies labeled using Streptavidin (Monovalent) kits. T cells (rat anti-CD3, 7 µg/ml, green), B cells (rat anti-CD45R, 7 µg/ml, red), macrophages (rat anti-CD11b, 7 µg/ml, white), and dendritic cells (hamster anti-CD11c, 7 µg/ml, blue) were detected using Streptavidin (Monovalent) kits with four different fluorochromes. Picture was taken with a standard fluorescence microscope equipped with appropriate filters for optimal multicolor separation.
Antibodies labeled with Streptavidin (Monovalent) kits are as bright as directly conjugated antibodies. Flow cytometry analysis of splenic B lymphocytes immunolabeled with antibodies against CD45R (B220, clone RA3-6B2, 7 µg/ml). Dark green = directly conjugated antibody, light green = Streptavidin (Monovalent)-labeled antibody.
No spillover of signals between Streptavidin (Monovalent)-labeled antibodies. Flow cytometry analysis of T and B cells immunolabeled (7 µg/ml) with Streptavidin Alexa Fluor® 647 (Monovalent)(ab272190) and Streptavidin Alexa Fluor® 488 (Monovalent)(ab272187).
ab272187 has not yet been referenced specifically in any publications.