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Streptavidin
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Catalog No. T8781Cas No. 9013-20-1
Streptavidin is a protein tetramer purified from bacteria with a very high affinity for biotin and is commonly used for the purification or detection of various biomolecules. Streptavidin is immunologically active, inhibiting IL-2 synthesis and CD25 expression in T cells.
Streptavidin
Streptavidin
Copy Product Info😃Good
Catalog No. T8781Cas No. 9013-20-1
Streptavidin is a protein tetramer purified from bacteria with a very high affinity for biotin and is commonly used for the purification or detection of various biomolecules. Streptavidin is immunologically active, inhibiting IL-2 synthesis and CD25 expression in T cells.
| Pack Size | Price | USA Warehouse | Global Warehouse | Quantity |
|---|---|---|---|---|
| 1 mg | $67 | - | In Stock | |
| 5 mg | $157 | - | In Stock | |
| 10 mg | $230 | - | In Stock | |
| 25 mg | $396 | - | In Stock | |
| 50 mg | $596 | - | In Stock |
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In Stock Estimated shipping dateUSA Warehouse[1-2 days] Global Warehouse[5-7 days]
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Appearance:Solid
Color:White
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Product Introduction
Bioactivity
Chemical Properties
Storage & Solubility Information
| Description | Streptavidin is a protein tetramer purified from bacteria with a very high affinity for biotin and is commonly used for the purification or detection of various biomolecules. Streptavidin is immunologically active, inhibiting IL-2 synthesis and CD25 expression in T cells. |
| In vitro | Compared to the control group, Streptavidin (2-200 μg/mL) significantly inhibits the proliferation of Lewis T cells towards WF, with an inhibition rate of 76%-83% [1]. In Western blot or ELISA, a concentration of 0.1-1 µg/mL is sufficient. For immunoprecipitation, a concentration of 1-10 µg/mL can be used. |
| In vivo | In Lewis rat models, subcutaneous administration of Streptavidin induced a significant immunosuppressive effect, including reduced T cell proliferation responses to third-party antigens[1]. |
| Cas No. | 9013-20-1 |
| Relative Density. | 1.31g/cm3 |
| Storage | keep away from moisture,store at low temperature | Powder: -20°C for 3 years | In solvent: -80°C for 1 year |
| Solubility Information | H2O: 80 mg/mL, Sonication is recommended. |
Calculator
In Vivo Formulation Calculator (Clear solution)
Please enter your animal experiment information in the following box and click Calculate to obtain the stock solution preparation method and in vivo formula preparation method:
For example, if the intended dosage is 10 mg/kg for animals weighing 20 g , with a dosing volume of 100 μL per animal, and a total of 10 animals are to be administered, using a formulation of 
10% DMSO+ 40% PEG300+ 5% Tween 80+ 45% Saline/PBS/ddH2O , the resulting working solution concentration would be 2 mg/mL.Stock Solution Preparation:
Dissolve 2 mg of the compound in 100 μL DMSO to obtain a stock solution at a concentration of 20 mg/mL . If the required concentration exceeds the compound's known solubility, please contact us for technical support before proceeding.
Preparation of the In Vivo Formulation:
1) Add 100 μL of the DMSO stock solution to 400 μL PEG300 and mix thoroughly until the solution becomes clear.
2) Add 50 μL Tween 80 and mix well until fully clarified.
3) Add 450 μL Saline,PBS or ddH2O and mix thoroughly until a homogeneous solution is obtained.
This example is provided solely to demonstrate the use of the In Vivo Formulation Calculator and does not constitute a recommended formulation for any specific compound. Please select an appropriate dissolution and formulation strategy based on your experimental model and route of administration.
Dose Conversion
You can also refer to dose conversion for different animals. More Dose Conversion
Tech Support
Please see Inhibitor Handling Instructions for more frequently ask questions. Topics include: how to prepare stock solutions, how to store products, and cautions on cell-based assays & animal experiments, etc
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