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Product Details
Synonyms
Streptavidin, SA
Source
Streptavidin Protein-HRP, ultra sensitivity (STN-NH113) is expressed from E. coli cells.
Predicted N-terminus: Met
Molecular Characterization
This protein carries no "tag".
The protein has a calculated MW of 13.8 kDa.
Formulation
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
Reconstitution
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
Shipping and Storage
This product is shipped at ambient temperature.
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please protect from light and avoid repeated freeze-thaw cycles.
This product is stable after storage at:
- -20°C to -70°C for 12 months in lyophilized state;
- -70°C for 3 months under sterile conditions after reconstitution.
ACRO Quality Management System
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Performance Data
Bioactivity-ELISA
Immobilized Cynomolgus / Rhesus macaque BCMA, His Tag (Cat. No. BCA-C52H7) at 1 μg/mL (100 μL/well) can bind Biotinylated Human APRIL, Fc,Avitag (Cat. No. APL-H82F5) with a linear range of 0.05-13 ng/mL when detected by Streptavidin Protein-HRP, ultra sensitivity (0.05 µg/mL) (Cat. No. STN-NH113) (QC tested).
Protocol
Measure performance comparison between Acro (Streptavidin Protein-HRP, ultra sensitivity) and other competitive products. With tight quality control measures, Acro has better sensitivity than other brands.
Immobilized Monoclonal Mouse Anti-CD5-2C8A7, Mouse IgG1 at 1 μg/mL, add Human CD5, His Tag (Cat. No. CD5-H52H5) and then add Monoclonal Biotin-Mouse Anti-CD5-9F8F11, Mouse IgG1 at 0.5 μg/mL. Detection was performed using Streptavidin Protein-HRP, ultra sensitivity (Acro, Cat. No. STN-NH113) (Routinely tested).
Protocol
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FAQ
- product
Can lyophilized proteins remain stable during room-temperature shipping or temporary room-temperature exposure?
In general, lyophilized proteins remain stable during room-temperature shipping or temporary exposure to room-temperature conditions.
Many ACROBiosystems recombinant proteins are supplied in lyophilized (freeze-dried) form. The lyophilization process effectively removes moisture from the product, helping reduce degradation-related reactions and improve protein stability during transportation and storage.
To evaluate the stability of lyophilized proteins under normal temperature conditions, ACROBiosystems conducted a stability study on 11 representative lyophilized protein products at 37°C. The study demonstrated that these proteins maintained good quality stability after storage at 37°C for approximately 20 days. Based on these validation results, temporary room-temperature exposure during shipping or handling is generally not expected to have a significant impact on product quality or downstream application performance.
To ensure optimal long-term stability, products should be stored according to the storage conditions specified in the product Certificate of Analysis (COA) upon receipt.
Supporting Document
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