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Protein A
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Catalog No. TRP-00201Cas No. 308083-69-4
Protein A (SPA) is an immunoglobulin (Ig)-binding protein found on the bacterial surface and can be freely secreted into the extracellular environment. It binds to the Fc region of antibodies and the Fab region of B cell receptors, thereby blocking opsonophagocytosis and inducing B cell death in vitro. Protein A is capable of inhibiting opsonization and phagocytosis in vitro.
Protein A
Protein A
😃Good
Catalog No. TRP-00201Cas No. 308083-69-4
Protein A (SPA) is an immunoglobulin (Ig)-binding protein found on the bacterial surface and can be freely secreted into the extracellular environment. It binds to the Fc region of antibodies and the Fab region of B cell receptors, thereby blocking opsonophagocytosis and inducing B cell death in vitro. Protein A is capable of inhibiting opsonization and phagocytosis in vitro.
| Pack Size | Price | Availability | Quantity |
|---|---|---|---|
| 5 mg | Inquiry | 7-10 days | |
| 10 mg | Inquiry | 7-10 days | |
| 50 mg | Inquiry | 7-10 days |
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Product Introduction
Bioactivity
Chemical Properties
| Description | Protein A (SPA) is an immunoglobulin (Ig)-binding protein found on the bacterial surface and can be freely secreted into the extracellular environment. It binds to the Fc region of antibodies and the Fab region of B cell receptors, thereby blocking opsonophagocytosis and inducing B cell death in vitro. Protein A is capable of inhibiting opsonization and phagocytosis in vitro. |
| Cas No. | 308083-69-4 |
Storage & Solubility Information
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In Vivo Formulation Calculator (Clear solution)
Please enter your animal experiment information in the following box and click Calculate to obtain the mother liquor preparation method and in vivo formula preparation method:
For example, your dosage is 10 mg/kg Each animal weighs 20 g, and the dosage volume is 100 μL . A total of 10 animals were administered, and the formula you used is 5% 
DMSO+30% PEG300+5% Tween 80+60% Saline/PBS/ddH2O. So your working solution concentration is 2 mg/mL。Mother liquor preparation method: 2 mg of drug dissolved in 50 μL DMSO (mother liquor concentration of 40 mg/mL), if you need to configure a concentration that exceeds the solubility of the product, please contact us first.
(mother liquor concentration of 40 mg/mL), if you need to configure a concentration that exceeds the solubility of the product, please contact us first.Preparation method for in vivo formula: Take 50 μL DMSO main solution, add 300 μLPEG300 mix well and clarify, then add 50 more μL Tween 80, mix well and clarify, then add 600 more μLSaline/PBS/ddH2O mix well and clarify
main solution, add 300 μLPEG300 mix well and clarify, then add 50 more μL Tween 80, mix well and clarify, then add 600 more μLSaline/PBS/ddH2O mix well and clarifyFor Reference Only. Please develop an appropriate dissolution method based on your laboratory animals and route of administration.
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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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